Question SM-S906U1 - Please explain CSC - Samsung Galaxy S22 Plus

Greetings,
Just purchased Unlocked S22+ from Samsung US. The phone model is SM-S906U1UES2AVI5.
My service is with AT&T.
My CSC status shows the following:
SM-S906U1_OYM_ATT_13_0012
ATT/ATT,XAA/XAA
My questions are:
Are the first two ATT/ATT a result of the phone recognizing AT&T Sim card?
What do the XAA/XAA mean?
If I insert another provider's SIM (US T-Mobile for example, or UK Vodafon, or you-name-it), will my phone still work? It is supposed to be Unlocked. I have an International Version S21+ and the provider/SIM info is not shown like this.
Thank you.

Anyone?

Your currently applied CSC is ATT, then 2 sim slots: ATT and another one probably empty. Eventually the original device CSC, which is USA/Unlocked.
Basically your device us unlocked for the US market, because you've out an ATT sim inside, it got an ATT CSC.
You can put whatever sim you want.

DubelBoom said:
Your currently applied CSC is ATT, then 2 sim slots: ATT and another one probably empty. Eventually the original device CSC, which is USA/Unlocked.
Basically your device us unlocked for the US market, because you've out an ATT sim inside, it got an ATT CSC.
You can put whatever sim you want.
Click to expand...
Click to collapse
Thanks @DubelBoom .
So if I just put another provider's SIM (T-mobile for example), the first two will change to TMO.
I believe it is unlocked for all markets, not just US/
What is the meaning of the 3rd/4th CSC (XAA/XAA)?
This phone has one physical SIM Slot and any other SIM will be eSim.

Man search up on Google how csc is written, you'll find it all. Basically it's current CSC / sim1, sim2 / csc of what it was manufactured for.
The last one cannot be changed, the others can, with different methods.
XAA is us unlocked meaning this device was manufactured for the US market with no specific carrier. Has nothing to do with sim lock, it has mostly to do with software updates.

DubelBoom said:
Man search up on Google how csc is written, you'll find it all. Basically it's current CSC / sim1, sim2 / csc of what it was manufactured for.
The last one cannot be changed, the others can, with different methods.
XAA is us unlocked meaning this device was manufactured for the US market with no specific carrier. Has nothing to do with sim lock, it has mostly to do with software updates.
Click to expand...
Click to collapse
I seearched, it is unclear to me in this case.
So the first one (Current CSC) - will this change as well if I use another carrier (not AT&T)?
Am I getting AT&T updates (because of the first one) or am I getting Samsung updates because it is an unlocked/unbranded phone? This is what confuses me.
I want to make sure that I can put whichever SIM that I want and the phone will work "out of the box".
Thank you.

[email protected] said:
che
check it out *spam link remove" edit by blackhawk
Click to expand...
Click to collapse
Squished bs, from their website:
"How long will it take for my Cow Squishmallow to be delivered?
We are using the fastest logistics companies out there who are going to deliver these beautiful squishmallows to your doorstep in 15-21 business days.
Is the Cow Squishmallow a unisex toy?
The toy is suitable for both genders to play with. Not only this, but the babies also take a keen interest in playing with the cow squishmallows. So, when you grab a couple of these toys all of your children can share them."
From China with wuv...

The last part will never change and will always show what the original configuration was. If it was purchased as US unlocked, it will show XAA, if Verizon, VZW, etc. The first two will change simply by inserting another carrier's SIM card. The third is how it was registered when it received the last software update.

Related

[Q] GT-I9300 S3 use in USA

Hello, I recently visited the USA (Las Vegas) and discovered that my UK bought (UNLOCKED) Samsung Galaxy S3 could not make nor receive calls in the USA. Roaming WAS enabled and I had an R symbol over the signal strength indicator. I have a Vodafone pay as you go sim card which I have used (as my main sim) over numerous years now. I have used it in other phones previously (HTC, Samsung, LG, etc.) over the years and they have all made and received calls in the USA (roaming) no problem. I did get a text message (eventually) when I was in the USA saying welcome to USA and calls cost £1.50, etc, etc. Yet when I tried making a call, I had an automated voice message asking me to contact my operator for some reason (can't remember the specifics). I've never had a problem using my Vodafone sim roaming in the USA and with previous phones, always made and received calls without any hassle (i.e. found a network automatically, e.g. AT&T, T-Mobile, etc.). Also, I visited Las Vegas last year with the same sim card but a different phone (HTC Desire HD) and was able to make and receive calls. I recall my brother saying that he had read something on the internet about the UK spec. S3 having hardware differences with the rest of the world versions, including not being able to work in the USA for calls. However, he could not find the site again. Has anybody else had this problem or know about it?
Yee1 said:
Hello, I recently visited the USA (Las Vegas) and discovered that my UK bought (UNLOCKED) Samsung Galaxy S3 could not make nor receive calls in the USA. Roaming WAS enabled and I had an R symbol over the signal strength indicator. I have a Vodafone pay as you go sim card which I have used (as my main sim) over numerous years now. I have used it in other phones previously (HTC, Samsung, LG, etc.) over the years and they have all made and received calls in the USA (roaming) no problem. I did get a text message (eventually) when I was in the USA saying welcome to USA and calls cost £1.50, etc, etc. Yet when I tried making a call, I had an automated voice message asking me to contact my operator for some reason (can't remember the specifics). I've never had a problem using my Vodafone sim roaming in the USA and with previous phones, always made and received calls without any hassle (i.e. found a network automatically, e.g. AT&T, T-Mobile, etc.). Also, I visited Las Vegas last year with the same sim card but a different phone (HTC Desire HD) and was able to make and receive calls. I recall my brother saying that he had read something on the internet about the UK spec. S3 having hardware differences with the rest of the world versions, including not being able to work in the USA for calls. However, he could not find the site again. Has anybody else had this problem or know about it?
Click to expand...
Click to collapse
I have no idea about roaming in the USA...
However, I do know that the phone works on AT&Ts network, because I live in the USA & use the I9300 on AT&Ts network. The I9300 will not work on T-Mobile's data network, but should work on T-Mo's voice network.
That probably wasn't much help to you. I just wanted to confirm for you that the phone does work on AT&Ts network here.
brkshr said:
I have no idea about roaming in the USA...
However, I do know that the phone works on AT&Ts network, because I live in the USA & use the I9300 on AT&Ts network. The I9300 will not work on T-Mobile's data network, but should work on T-Mo's voice network.
That probably wasn't much help to you. I just wanted to confirm for you that the phone does work on AT&Ts network here.
Click to expand...
Click to collapse
Thanks brkshr, that was helpful. Good to know that a GT-I9300 does work in the USA.
I thought the USA had different models (SGH-T999 and SGH-I747). What made you decide to get a GT-I9300?
I may try again (next time I go back to USA) and if still the same, will try an AT&T sim. I must admit, I don't know anything about the different networks in the USA. Can I get a pay as you go sim for free? In England, you can get sim cards for different networks free and then obviously pay to top up.
Yee1 said:
Thanks brkshr, that was helpful. Good to know that a GT-I9300 does work in the USA.
I thought the USA had different models (SGH-T999 and SGH-I747). What made you decide to get a GT-I9300?
I may try again (next time I go back to USA) and if still the same, will try an AT&T sim. I must admit, I don't know anything about the different networks in the USA. Can I get a pay as you go sim for free? In England, you can get sim cards for different networks free and then obviously pay to top up.
Click to expand...
Click to collapse
You are correct. The U.S. does have it's own variations. I decided to buy the I9300 for the quad-core & I was hoping that Samsung would be more likely to release sources for it & update it faster. They do update the I9300 faster, but I prefer AOSP (Google's stock Android) over Samsungs TouchWiz & that's where sources come in to play. So now I wish I would have gone with a U.S. variant, because sources for the US variant are released. Oh well! (Sorry for the rant)
Unfortunately, we don't get free SIM cards here. The best thing to do is buy an AT&T SIM card online ahead of time. Then activate it on a prepaid plan when you get here. You need a Micro SIM card. They should cost anywhere from $5 to $15. Otherwise, you have to go into an AT&T store & buy their 'SIM Starter Kit' for $25... Complete BS.
http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias=aps&field-keywords=at&t+sim+card
Thanks again, the link (to Amazon) is very useful. I think I will get an AT&T pre-paid sim card as suggested. At least that way I can use mobile data (when wi-fi is not available) and not have to pay extortionate data roaming charges. Especially useful for mobile data assisted GPS.
One last question though. In the UK, you can keep your number even if you don't top up for ages. In the US, can you buy a pre-paid sim card, use it once, not top up for say a year and still be able to use the sim again, i.e. it won't be deactivated will it? That way I can have it as a holiday sim (I visit the US every year).
Yee1 said:
Thanks again, the link (to Amazon) is very useful. I think I will get an AT&T pre-paid sim card as suggested. At least that way I can use mobile data (when wi-fi is not available) and not have to pay extortionate data roaming charges. Especially useful for mobile data assisted GPS.
One last question though. In the UK, you can keep your number even if you don't top up for ages. In the US, can you buy a pre-paid sim card, use it once, not top up for say a year and still be able to use the sim again, i.e. it won't be deactivated will it? That way I can have it as a holiday sim (I visit the US every year).
Click to expand...
Click to collapse
I don't know the answer to that question. Sorry.
Sent from my GT-I9300 using Tapatalk 2
Question!!
I bought an unlocked i9300 the quad core international galaxy s3.. i'm using Simple Mobile micro simcard.. i wanted to use AT&T prepaid simcard the one amazon sell.. i 'm asking if anyone used the AT&T with this phone and make it work.. i went to AT&T store and they told me the simcard will never work on my phone so don't buy it..i live in Texas USA.
PS: i'm sorry if this question been asked before and thank you all for your time and help
Have you seen this thread?
http://forum.xda-developers.com/showthread.php?t=1696025
Sent from my Nexus 7 using XDA Premium HD app

Sprint Photon abroad on GSM

So i just picked up a used photon to use in Europe but have been reading some disturbing info. Some of it is rather old so just wanted to get updated info.
1. I want to use a local foreign sim. Can i just put one in and use it?
2. Do i need to call sprint to unlock it? I did put in an old Wind sim from italy while I am still here in the U.S. and it asked for a PIN. Is that a PIN I get from Wind or sprint?
3. I read somewhere about renaming two files to bypass the Sprint activation screen. Is that still recommended even though this phone is activated and i using it as my normal cellphone in the US? Pros and cons of doing this?
4. I read somewhere that I will not be able to use foreign sim data/internet? Is this still true. Is there any workaround for this?
Any recent real world experiences would be appreciated.
Thanks!!
superflysocal said:
So i just picked up a used photon to use in Europe but have been reading some disturbing info. Some of it is rather old so just wanted to get updated info.
1. I want to use a local foreign sim. Can i just put one in and use it?
2. Do i need to call sprint to unlock it? I did put in an old Wind sim from italy while I am still here in the U.S. and it asked for a PIN. Is that a PIN I get from Wind or sprint?
3. I read somewhere about renaming two files to bypass the Sprint activation screen. Is that still recommended even though this phone is activated and i using it as my normal cellphone in the US? Pros and cons of doing this?
4. I read somewhere that I will not be able to use foreign sim data/internet? Is this still true. Is there any workaround for this?
Any recent real world experiences would be appreciated.
Thanks!!
Click to expand...
Click to collapse
Just pop in a foreign sim and you should be ready to go
superflysocal said:
So i just picked up a used photon to use in Europe but have been reading some disturbing info. Some of it is rather old so just wanted to get updated info.
1. I want to use a local foreign sim. Can i just put one in and use it?
2. Do i need to call sprint to unlock it? I did put in an old Wind sim from italy while I am still here in the U.S. and it asked for a PIN. Is that a PIN I get from Wind or sprint?
3. I read somewhere about renaming two files to bypass the Sprint activation screen. Is that still recommended even though this phone is activated and i using it as my normal cellphone in the US? Pros and cons of doing this?
4. I read somewhere that I will not be able to use foreign sim data/internet? Is this still true. Is there any workaround for this?
Any recent real world experiences would be appreciated.
Thanks!!
Click to expand...
Click to collapse
1) Yes. Depending on the carrier you may need to configure the APN's for data / internet. Orange UK was just plug and go for me. Vodafone Romania and Tigo Colombia needed APN's configured. If you buy the SIM at the office of the carrier they will help you configure it at that time. If you buy the Sim online, Tweakker or APN Global can help. Both are available on Google Play, or you could always go to the carrier's office.
2) No need to unlock. The PIN would be from the operator (Wind in your case). Normally the PIN is on the little card that the SIM card pops out of of.
3) I never did this. I think that was just for people who were not going to be able to activate the phone in the US. Since yours is already activated I would not worry about it.
4) You can use 3G data assuming APN's and your Sim / plan are current.
I had a few annoyances trying to get prepaid sim cards to work for both voice and data in Iceland and Germany, but I was eventually able to get them to work.

[Q] Unlock Verizon Samsung Galaxy S4

Is it possible to unlock the Verizon version of the S4? I'm deploying in 4 weeks and would like to use my phone with international carriers. I have an SCH-I545 build and I'm still running on stock. Thanks
I think ATT has begun to unlock phones internationally when asked.
Verizon? Not sure... one think to check is if the Verizon GS4 supports a carrier in the country you travel to.
Take a look at Leo Laporte's Tech Guy show... he has callers ask this quetion on average every other week... I think he has show notes on his site now days... techguylabs.com
Sent from my SCH-I545 using xda app-developers app
PetrichorXFi said:
I think ATT has begun to unlock phones internationally when asked.
Verizon? Not sure... one think to check is if the Verizon GS4 supports a carrier in the country you travel to.
Take a look at Leo Laporte's Tech Guy show... he has callers ask this quetion on average every other week... I think he has show notes on his site now days... techguylabs.com
Sent from my SCH-I545 using xda app-developers app
Click to expand...
Click to collapse
Verizon phones are unlocked out of the box, but you have to make sure that the country you are going to has a GSM network.
After a lot of searching, I decided to ask this here:
I have a Verizon S4, but I was wondering if it was actually unlocked out-of-box or if there is something I have to do in order to use it with, for instance, Cricket, or U.S. Cellular. I have done lots of rooting/developing for Android, but have never tried to use an Android phone with a differing carrier. Can anyone help or point me to a thread that helps? (Again, did lots of Googling and XDA-searching)
furballbeethoven said:
After a lot of searching, I decided to ask this here:
I have a Verizon S4, but I was wondering if it was actually unlocked out-of-box or if there is something I have to do in order to use it with, for instance, Cricket, or U.S. Cellular. I have done lots of rooting/developing for Android, but have never tried to use an Android phone with a differing carrier. Can anyone help or point me to a thread that helps? (Again, did lots of Googling and XDA-searching)
Click to expand...
Click to collapse
The phone is GSM-unlocked. This means that you buy a SIM, plug it in, then add the proper APN to enable data. (Settings, Connections, More networks, Mobile networks, Access Point Names). The "+" (Add APN) button is disabled if you have a VZ SIM installed but will be enabled if you insert a non-VZ SIM.
Whoever you get the SIM from will tell you what to enter for the APN.
Whether or not it'll work and how fast a network you'll get depends on the bands that the local carrier uses.
k1mu said:
The phone is GSM-unlocked. This means that you buy a SIM, plug it in, then add the proper APN to enable data. (Settings, Connections, More networks, Mobile networks, Access Point Names). The "+" (Add APN) button is disabled if you have a VZ SIM installed but will be enabled if you insert a non-VZ SIM.
Whoever you get the SIM from will tell you what to enter for the APN.
Whether or not it'll work and how fast a network you'll get depends on the bands that the local carrier uses.
Click to expand...
Click to collapse
HI k1mu,
So do you mean to say if I purchase this device with full price from VZW ~$400 (month to month plan),
the next thing I can do is take off VZW SIM and would it work on my AT&T GSM SIM in US?
malhotra.aakash said:
HI k1mu,
So do you mean to say if I purchase this device with full price from VZW ~$400 (month to month plan),
the next thing I can do is take off VZW SIM and would it work on my AT&T GSM SIM in US?
Click to expand...
Click to collapse
Maybe. While the VZW version is GSM-unlocked for international use, it is unclear how well it works with US GSM carriers. Some people say they can get it to work, some say they can't. Theoretically, it should only take you putting in an AT&T SIM then plugging in the APN data for it to work, but some people still say it won't.
So, you should be able to, but going by the accounts of XDA members, it doesn't always work, which may or may not come down to user error.
joshm.1219 said:
Maybe. While the VZW version is GSM-unlocked for international use, it is unclear how well it works with US GSM carriers. Some people say they can get it to work, some say they can't. Theoretically, it should only take you putting in an AT&T SIM then plugging in the APN data for it to work, but some people still say it won't.
So, you should be able to, but going by the accounts of XDA members, it doesn't always work, which may or may not come down to user error.
Click to expand...
Click to collapse
Thanks joshm.1219,
It still leaves me in a dilemma.. I do really want to get a "S4 mini" model but don't want to stuck up with CDMA providers to be true. Might want to use with ATT or Tmobile or H2O.. I visited the VZW store and the model has option under networks as
1. Global
2. LTE/CDMA
3. GSM/UTMS
Now the Qs are,
1. If this model does have a SIM card slot, how at the first point VZW has lock on it
2. When i asked the VZW associate, he was not sure whether they ever do unlock the device or not
3. If I am ready to pay off complete price of the device which is ~400, what else I would need from them to really 'UNLOCK' it?
4. Is there any means by root/flashing to make such model work for US GSM carriers like H2O or even T-mobile.
Sorry to be so annoying but m new to all these things and quite confused :crying:
many Thx in advance..
malhotra.aakash said:
Thanks joshm.1219,
It still leaves me in a dilemma.. I do really want to get a "S4 mini" model but don't want to stuck up with CDMA providers to be true. Might want to use with ATT or Tmobile or H2O.. I visited the VZW store and the model has option under networks as
1. Global
2. LTE/CDMA
3. GSM/UTMS
Now the Qs are,
1. If this model does have a SIM card slot, how at the first point VZW has lock on it
2. When i asked the VZW associate, he was not sure whether they ever do unlock the device or not
3. If I am ready to pay off complete price of the device which is ~400, what else I would need from them to really 'UNLOCK' it?
4. Is there any means by root/flashing to make such model work for US GSM carriers like H2O or even T-mobile.
Sorry to be so annoying but m new to all these things and quite confused :crying:
many Thx in advance..
Click to expand...
Click to collapse
Sorry I can't be of more help, I've been on Verizon for 10 years now, but it is by all intents & purposes, fully SIM-unlocked. It's simply unclear as to why some people report problems of using Verizon phones on US GSM carriers. If you really don't want to worry about it & are willing to pay full price, purchase a device through the carrier you want to use it on.
here is the code to choose network
you might need to change the network frequency to gsm if you wanna use it on att or tmobile and when you wanna switch back to verizon choose wcdma try dialing *#*#4636#*#*:good:
joshm.1219 said:
Sorry I can't be of more help, I've been on Verizon for 10 years now, but it is by all intents & purposes, fully SIM-unlocked. It's simply unclear as to why some people report problems of using Verizon phones on US GSM carriers. If you really don't want to worry about it & are willing to pay full price, purchase a device through the carrier you want to use it on.
Click to expand...
Click to collapse
I've had people argue with me over this, but the fact is that NO Verizon LTE phone is SIM-locked. None. Nada.
People who claim differently are simply misinformed. (My I545 comes up on AT&T when I plug in my UK SIM and switch to GSM.)
Not to say that all VZ phones are unlocked - my Inc2 had to be unlocked before it would work with that same SIM. If I remember right, it wouldn't connect in the US, either, even after being unlocked. Not so for the GS4.
I appreciate the posts here from people who know. As for me, I am switching to tmobile and will attempt to use this there. If it doesnt work out, I will sell it on swappa and get a nexus 5!
Hi,
Verizon S4 with 4.3 is international unlocked by default.
You just need to select network mode 'GLOBAL'. Then add the right APN.
I am using Indian GSM SIM with the GLOBAL mode selected. All is well for me.
I can provide screenshots if anybody wanna see.
Verizon phones are unlocked out of the box and they DO work fine on US carriers I'm running my Verizon S4 right now on AT&T and I also ran it on tmobile for short time,
even works with Walmart straight talk and Net10 as those are just subsidies of T Mobile and AT&T anyway.
so don't sweat it if you have a verizon phone that uses a sim card, you can run it on any network that uses a SIM card US or international.
baseband issue
Doesn't the MK2 baseband with jb 4.3 block US Sim cards?
Or do I just have a weird s4?
kendonsh said:
Doesn't the MK2 baseband with jb 4.3 block US Sim cards?
Or do I just have a weird s4?
Click to expand...
Click to collapse
Mine dont? Im on mk2,
soon as I got my verizon s4 replacement from a damaged model that I turned in,
I threw a net10/att sim card in it.
completely stock phone not even rooted nothin, and it works fine, I did get a popup that said non Verizon SIM card but it works fine
calls in and out MMS works fine
---------- Post added at 01:57 PM ---------- Previous post was at 01:53 PM ----------
CafeAdrutico said:
The S4 is supposed to work globally right out of the box, as long as you've called Verizon to enable International roaming on your account. But, used that way, you'll be paying Verizon for International roaming and it's bloody expensive.
The question is, can you remove the SIM and put in a SIM for a local carrier in the foreign country where you are and use the phone on that carrier? That is what being unlocked would allow you to do. Past Verizon phones have not been unlocked to allow this. But, if you called Tech Support and told them you were going to, for example, Europe and wanted to use a local SIM, they would walk you through unlocking (at no charge).
I read a report that the S4 is not locked and that you can use a SIM for a local carrier in Europe, as it comes out of the box. But, I would not trust that. I would call VZW Tech Support and tell them exactly what you want to do - i.e. don't say "can I use my phone in Europe?" The answer to that is yes, you can, at about $1/minute. What you should ask them is, "can I travel to Europe and purchase a SIM from a local carrier and use that in my phone?" If not, they should be able to walk you through unlocking the phone, so you can do that.
Click to expand...
Click to collapse
to answer your question simply yes.
let's say I take my phone to Spain are somewhere in the UK, I'll go to store buy a SIM card for local network and BAM local phone number in Europe making phone calls, you can even get Data to work if you have that local carrier's APN settings
no unlocking is required because it is not locked.
other companies AT&T, Sprint, t-mobile, yes you have to get The phone sim unlocked.
k1mu said:
I've had people argue with me over this, but the fact is that NO Verizon LTE phone is SIM-locked. None. Nada.
People who claim differently are simply misinformed. (My I545 comes up on AT&T when I plug in my UK SIM and switch to GSM.)
Not to say that all VZ phones are unlocked - my Inc2 had to be unlocked before it would work with that same SIM. If I remember right, it wouldn't connect in the US, either, even after being unlocked. Not so for the GS4.
Click to expand...
Click to collapse
This is 100% correct. NO LTE phones on verizon are sim locked. They are REQUIRED to keep them unlocked because of their agreement with the FCC for their use of the spectrum they lease. NO OTHER CARRIER must abide by these rules. Only VZW. Sprint I've heard will unlock ANY phone that is capable if you ask them too, and AT&T will NOT unlock any of their phones unless it 2 years old and out of contract (which makes no sense if you have to pay them while under contract anyway). There was a big deal about the Iphone 5 when it came out with LTE for verizon. If you bought a Verizon Iphone, you could put an ATT sim in it and it works, but not an ATT on VZW because ATT keeps them locked.
The Dinc 2 above was NOT an LTE device. Therefore no sim card....and it wouldn't work on most overseas networks anyway as it was a CDMA only phone. I believe VZW tested the limits of the "unlocked" SIM with their first few LTE phones. My Rezound worked with a GSM network sim....but voice and SMS only. It took some unlocking of the bootloader and rooting to run a special Rom to get Data to work on it.
I am heading to the Caribbean in a few weeks, and I will be using a rented SIM card to be able to message back and forth with my wife (with a data based messenger service as data rates are far cheaper than SMS rate there)
318sugarhill said:
This is 100% correct. NO LTE phones on verizon are sim locked. They are REQUIRED to keep them unlocked because of their agreement with the FCC for their use of the spectrum they lease. NO OTHER CARRIER must abide by these rules. Only VZW. Sprint I've heard will unlock ANY phone that is capable if you ask them too, and AT&T will NOT unlock any of their phones unless it 2 years old and out of contract (which makes no sense if you have to pay them while under contract anyway). There was a big deal about the Iphone 5 when it came out with LTE for verizon. If you bought a Verizon Iphone, you could put an ATT sim in it and it works, but not an ATT on VZW because ATT keeps them locked.
The Dinc 2 above was NOT an LTE device. Therefore no sim card....and it wouldn't work on most overseas networks anyway as it was a CDMA only phone. I believe VZW tested the limits of the "unlocked" SIM with their first few LTE phones. My Rezound worked with a GSM network sim....but voice and SMS only. It took some unlocking of the bootloader and rooting to run a special Rom to get Data to work on it.
I am heading to the Caribbean in a few weeks, and I will be using a rented SIM card to be able to message back and forth with my wife (with a data based messenger service as data rates are far cheaper than SMS rate there)
Click to expand...
Click to collapse
I just spent a week in the UK with an ekit.com SIM in my Verizon GS4 - no problem with getting service, no Verizon charge (even though I was on the Vodaphone network for at least some times.)
And the dinc 2, while not LTE, was CDMA/GSM - not just CDMA (yes, the dinc was CDMA-only), so it did accept a SIM card. I'm using that in the GS4 now that it's cut down to micro SIM.
That phone WAS SIM-locked, but VZ happily unlocked it. For the GS4, I didn't have to do anything with VZ to use it off their network.
bickin said:
Is it possible to unlock the Verizon version of the S4? I'm deploying in 4 weeks and would like to use my phone with international carriers. I have an SCH-I545 build and I'm still running on stock. Thanks
Click to expand...
Click to collapse
DOES ANYONE KNOW HOW TO
UNLFOK s4 UK VERSION sorry I'm new to the website
furballbeethoven said:
After a lot of searching, I decided to ask this here:
I have a Verizon S4, but I was wondering if it was actually unlocked out-of-box or if there is something I have to do in order to use it with, for instance, Cricket, or U.S. Cellular. I have done lots of rooting/developing for Android, but have never tried to use an Android phone with a differing carrier. Can anyone help or point me to a thread that helps? (Again, did lots of Googling and XDA-searching)
Click to expand...
Click to collapse
The phone is already unlocked for SIM and other carriers, all you need is the correct APN for the carrier. I currently have T-Mobile on my i545 and everything works on it.

[Q] Gear S =Phone Not Allowed MM#6

Hello Everyone.
I am stumped on this issue. There doesn't seem to be any solutions for me. Here is What's happening, then I will tell you what I know..
Originally an ATT watch. SM-R750A
The IMEI is perfect. Not black listed at all. (Verified with ATT,SAMSUNG, and TMOBILE)
It is unlocked by ATT - I received the code and used it with the Tmobile Sim card inside when prompted. Success.
ATT Sim cards work perfectly,and with 4G!! When my Tmobile Sim goes in there, it only allows Emergency calls.
The APN settings are automatically populated. Verified to be correct with Tmobile. Basically, everything is fine on their end..
I am getting the run around from all 3 sources. They point the finger at each other.
Example:
Tmobile :"ATT did not unlock it completely, call them and ask for it to be fully unlocked."
ATT: "Once we gave you the code, our hands are tied. Call samsung, they may be able to complete your request.."
Samsung: "This is a service/network issue. Contact who ever your sim card has service with.."
Please help me, I have tried everything I can think of.
I researched all over the internet.. There are no working solutions anywhere!!!
I even Oden flashed the Official Firmware from ATT to Tmobile, so now my Model # is SM-R750T. I get the same errors. Att sim cards still work perfectly.
:crying:
I added photos of a menu I found on the device.. I dont know what this means..
I can draw conclusions, but I still need help..
Also, I have had the Tmobile Sim card replaced twice..
If someone could help find a solution, this will help a LOT people!
Thank You AHEAD of time.
did you flash the entire firmware package?
I only flashed official firmware from ATT to TMOBILE.. That was all. If there are further steps please let me know.
I stopped at the firmware install because I thought anything extra would have just been for customizing themes, etc..
animegamemaster said:
Hello Everyone.
I am stumped on this issue. There doesn't seem to be any solutions for me. Here is What's happening, then I will tell you what I know..
Originally an ATT watch. SM-R750A
The IMEI is perfect. Not black listed at all. (Verified with ATT,SAMSUNG, and TMOBILE)
It is unlocked by ATT - I received the code and used it with the Tmobile Sim card inside when prompted. Success.
ATT Sim cards work perfectly,and with 4G!! When my Tmobile Sim goes in there, it only allows Emergency calls.
The APN settings are automatically populated. Verified to be correct with Tmobile. Basically, everything is fine on their end..
I am getting the run around from all 3 sources. They point the finger at each other.
Example:
Tmobile :"ATT did not unlock it completely, call them and ask for it to be fully unlocked."
ATT: "Once we gave you the code, our hands are tied. Call samsung, they may be able to complete your request.."
Samsung: "This is a service/network issue. Contact who ever your sim card has service with.."
Please help me, I have tried everything I can think of.
I researched all over the internet.. There are no working solutions anywhere!!!
I even Oden flashed the Official Firmware from ATT to Tmobile, so now my Model # is SM-R750T. I get the same errors. Att sim cards still work perfectly.
:crying:
I added photos of a menu I found on the device.. I dont know what this means..
I can draw conclusions, but I still need help..
Also, I have had the Tmobile Sim card replaced twice..
If someone could help find a solution, this will help a LOT people!
Thank You AHEAD of time.
Click to expand...
Click to collapse
Tmobile :"ATT did not unlock it completely, call them and ask for it to be fully unlocked."
From my understanding, there are no levels of unlock permissions. Once a device is unlocked, it's done on all levels and access.
It is unlocked by ATT - I received the code and used it with the Tmobile Sim card inside when prompted. Success.
The unlock code needs to be entered on device while connected to the ATT network...not TM's. My initial suggestion is kindly call back ATT and with the correct IMEI/ATT Sim inserted, enter unlock code again. You may need to flash back to xxxA first.
My thought here is the phone isn't unlocked according to ATT's server's Device ID data...when you reestablished connection with ATT, it locked the device again.
[Q]
You said that you got the unlock code from ATT, with TM Sim inserted, and it was a success....
Why did you go back to the ATT Sim again if you had it working?
animegamemaster said:
Hello Everyone.
I am stumped on this issue. There doesn't seem to be any solutions for me. Here is What's happening, then I will tell you what I know..
Originally an ATT watch. SM-R750A
The IMEI is perfect. Not black listed at all. (Verified with ATT,SAMSUNG, and TMOBILE)
It is unlocked by ATT - I received the code and used it with the Tmobile Sim card inside when prompted. Success.
ATT Sim cards work perfectly,and with 4G!! When my Tmobile Sim goes in there, it only allows Emergency calls.
The APN settings are automatically populated. Verified to be correct with Tmobile. Basically, everything is fine on their end..
I am getting the run around from all 3 sources. They point the finger at each other.
Example:
Tmobile :"ATT did not unlock it completely, call them and ask for it to be fully unlocked."
ATT: "Once we gave you the code, our hands are tied. Call samsung, they may be able to complete your request.."
Samsung: "This is a service/network issue. Contact who ever your sim card has service with.."
Please help me, I have tried everything I can think of.
I researched all over the internet.. There are no working solutions anywhere!!!
I even Oden flashed the Official Firmware from ATT to Tmobile, so now my Model # is SM-R750T. I get the same errors. Att sim cards still work perfectly.
:crying:
I added photos of a menu I found on the device.. I dont know what this means..
I can draw conclusions, but I still need help..
Also, I have had the Tmobile Sim card replaced twice..
If someone could help find a solution, this will help a LOT people!
Thank You AHEAD of time.
Click to expand...
Click to collapse
Try this. Go to phone dialer, type in *#2263# , dont hit call , just wait for the menu. When it comes up, select GSM band preference and if its an option, choose GSM 1800. Then swipe down to exit.
Sent from my SAMSUNG-SM-N910A using XDA Free mobile app
mghtymse007 said:
Tmobile :"ATT did not unlock it completely, call them and ask for it to be fully unlocked."
From my understanding, there are no levels of unlock permissions. Once a device is unlocked, it's done on all levels and access.
It is unlocked by ATT - I received the code and used it with the Tmobile Sim card inside when prompted. Success.
The unlock code needs to be entered on device while connected to the ATT network...not TM's. My initial suggestion is kindly call back ATT and with the correct IMEI/ATT Sim inserted, enter unlock code again. You may need to flash back to xxxA first.
My thought here is the phone isn't unlocked according to ATT's server's Device ID data...when you reestablished connection with ATT, it locked the device again.
[Q]
You said that you got the unlock code from ATT, with TM Sim inserted, and it was a success....
Why did you go back to the ATT Sim again if you had it working?
Click to expand...
Click to collapse
The unlock code worked. I was not prompted to enter another unlock code. I received success notification. I immediately got the error code that you see in the pictures. Could not dial out. So i went to ATT store for some hands on troubleshooting. But I will try to use the sim card idea you mentioned. I will come back with an update.
vacortina said:
Try this. Go to phone dialer, type in *#2263# , dont hit call , just wait for the menu. When it comes up, select GSM band preference and if its an option, choose GSM 1800. Then swipe down to exit.
Sent from my SAMSUNG-SM-N910A using XDA Free mobile app
Click to expand...
Click to collapse
This is a 'no-go' as well.. I will flash my firmware back to ATT and try it again.
Edit:
No, this did not work as well..
animegamemaster said:
The unlock code worked. I was not prompted to enter another unlock code. I received success notification. I immediately got the error code that you see in the pictures. Could not dial out. So i went to ATT store for some hands on troubleshooting. But I will try to use the sim card idea you mentioned. I will come back with an update.
Click to expand...
Click to collapse
The same here. I'm from Vietnam. My boss from USA visited Vietnam office and gifted me a T-mobile Gear S with the unlock code from T-mobile. Before unlocking the network, i upgrade it with the latest firmware from T-mobile (R750TUVU1A07). I then inserted a VN carrier SIM and did follow T-mobile guide as below:
1.Insert a Non-T-Mobile SIM & turn the Gear S ON.
2.The Gear S will automatically prompt you to enter the unlock code.
3.Tap in the unlock code provided by T-Mobile and click OK.
Note: The device should display code accepted
Click to expand...
Click to collapse
After i receive the successful message, i still cant make call or send message. It keep saying that "Mobile network is not available". I tried with 3 nano sim cards from 3 biggest carriers in VN but there is no luck. (These sim cards work well on the iPhone 5).
BTW, the GPS also didn't work, even before or after unlocking with the code. It keep saying "GPS signal too weak. Please connect the Gear to mobile device via Bluetooth" (or something like that).
snowinjune said:
The same here. I'm from Vietnam. My boss from USA visited Vietnam office and gifted me a T-mobile Gear S with the unlock code from T-mobile. Before unlocking the network, i upgrade it with the latest firmware from T-mobile (R750TUVU1A07). I then inserted a VN carrier SIM and did follow T-mobile guide as below:
After i receive the successful message, i still cant make call or send message. It keep saying that "Mobile network is not available". I tried with 3 nano sim cards from 3 biggest carriers in VN but there is no luck. (These sim cards work well on the iPhone 5).
BTW, the GPS also didn't work, even before or after unlocking with the code. It keep saying "GPS signal too weak. Please connect the Gear to mobile device via Bluetooth" (or something like that).
Click to expand...
Click to collapse
You most likely will not be able to use a North American S outside the US. It has nothing to do with the software...the frequency bands are different and hardcoded. You may want to check and see what bands are used by the providers in VN for cellular ie: 2G, 3G, etc and compare those to what US/Sprint uses.
I have the same issues with the GPS. Even when I'm outside, in an open area I can't even get the weather app to update. Not sure how many people have this issue, but it doesn't seem to be a topic of discussion on XDA.
snowinjune said:
The same here. I'm from Vietnam. My boss from USA visited Vietnam office and gifted me a T-mobile Gear S with the unlock code from T-mobile. Before unlocking the network, i upgrade it with the latest firmware from T-mobile (R750TUVU1A07). I then inserted a VN carrier SIM and did follow T-mobile guide as below:
After i receive the successful message, i still cant make call or send message. It keep saying that "Mobile network is not available". I tried with 3 nano sim cards from 3 biggest carriers in VN but there is no luck. (These sim cards work well on the iPhone 5).
BTW, the GPS also didn't work, even before or after unlocking with the code. It keep saying "GPS signal too weak. Please connect the Gear to mobile device via Bluetooth" (or something like that).
Click to expand...
Click to collapse
---------- Post added at 02:15 PM ---------- Previous post was at 02:12 PM ----------
animegamemaster said:
This is a 'no-go' as well.. I will flash my firmware back to ATT and try it again.
Edit:
No, this did not work as well..
Click to expand...
Click to collapse
Have you tried rooting?
http://forum.xda-developers.com/showthread.php?t=2977581
Thanks to cipherswitch
This is from "CELLUNLOCKER" where I got my unlock code...before it was free...lol....... When I click on the t mobile for network....I get "registered to networkk" popup with my ATT GS. When I call a number I get the tmobile cust servc help line...... since I am not a tmobile cust.
I cannot remember which method I used....but I can go with att or tmobile sims with no issues. Right now I have H20 as my carrier, on the ATT network...but at least I know I can go to the Tmobile network or carriers anytime
How to enter unlock codes on all Samsung models
Different phones have different Unlock Code Input Instructions, Try the following Instructions in order:
Note: Non Accepted Simcard is any simcard not from the original provider
Method #1 Insert a Non accepted simcard in your phone and power on. Once finished loading your phone will ask you to enter a code, enter the Unlock Code
OR
Method #2 (NOT applicable for newer Samsung phones, ie. Galaxy S3, S4, S5, Note 2, Note 3, etc)
Go to the dial screen on your phone as if you are going to make a call and press: #7465625*638*UNLOCKCODE# (8 digit unlock code)
OR
Method #3 (NOT applicable for newer Samsung phones, ie. Galaxy S3, S4, S5, Note 2, Note 3, etc)
Go to the dial screen on your phone as if you are going to make a call and press: #0111*UNLOCKCODE# (8 digit unlock code)
OR
Method #4 (NOT applicable for newer Samsung phones, ie. Galaxy S3, S4, S5, Note 2, Note 3, etc)
Go to the dial screen on your phone as if you are going to make a call and press #7465625*638*# Once prompted for code, enter the 8 digit Unlock Code.
When this method is used for newer Samsung phones, it will say "unsuccessful" regardless of the phone being unlocked or not.
Phone Not Allowed MM#6 Tmobile- A clue to problem?
I also have the same problem...it is frustrating.
i have an unlocked AT&T Gear S ( unlocked thru one of the unlock ebay sites. it seemed to go well, and worked)
i setup account with Tmobile, and it worked, i have had it about 2 months, all OK, until..
i took out SIM to test with my unlocked IPHONE 6+, (i have been thinking of switching all my phones to Tmobile) it also worked OK,
Then i swicthed it back into the Gear S, and the trouble started (unless it was a conincidence),
'Phone not allowed MM#6', it tried everything.
1. reset Gear
2.rebooted thru the gear boot menu
-i called Tmobile, they did not have answer,m they asked me to try a new SIM, which i did online and updated account with new SIM,
same problem.
3.Tmo said maybe not complety unlocked to contact AT&T but i doubted this,
4. I tried a freinds SIM from his Iphone 6+ (on Tmo) it worked great in my Gear Sm and my 'unlocked Ipphone 6'
5. i tried my Gear S SIM in my Iphone, message poped up 'Phone not allowed' (this time no MM#6)
6. called Tmo again (maybe 3rd time) suggested another new SIM card, they everything on there end looks fine, they checked imei, sim card etc, all OK.
i told them from what i have read the forums mentioned a network problem, not a phone problem.
They connected with Samsung, they said they can try reflashing the Gear S, if i send it in to them,
7. i called Tmo again, and i spoke one rep who , GAVE ME A CLUE TO PROBLEM.. he found a note concerning the Gear S,
it said if the user puts the Gear S SIM cards (wiith the 'wearable plan') into another phone, it will block the account until the user reinstalls SIM into Gear S.
8. if this the problem, iit is not reseting itself when SIM is back in Gear S.
9. Not sure what to do next.
the last Tmo rep told to go into Tmo store, and they will try another new SIM, and ask them to try new SIM and my in anoother Gear S, but it seems many tmo stores dont have Gear S on hand, only display it am checking.
10. One idea may be to close the whole account and open new account for the Gear S.
did anybody have luck with this problem?
perdikoylis said:
I also have the same problem...it is frustrating.
i have an unlocked AT&T Gear S ( unlocked thru one of the unlock ebay sites. it seemed to go well, and worked)
i setup account with Tmobile, and it worked, i have had it about 2 months, all OK, until..
i took out SIM to test with my unlocked IPHONE 6+, (i have been thinking of switching all my phones to Tmobile) it also worked OK,
Then i swicthed it back into the Gear S, and the trouble started (unless it was a conincidence),
'Phone not allowed MM#6', it tried everything.
1. reset Gear
2.rebooted thru the gear boot menu
-i called Tmobile, they did not have answer,m they asked me to try a new SIM, which i did online and updated account with new SIM,
same problem.
3.Tmo said maybe not complety unlocked to contact AT&T but i doubted this,
4. I tried a freinds SIM from his Iphone 6+ (on Tmo) it worked great in my Gear Sm and my 'unlocked Ipphone 6'
5. i tried my Gear S SIM in my Iphone, message poped up 'Phone not allowed' (this time no MM#6)
6. called Tmo again (maybe 3rd time) suggested another new SIM card, they everything on there end looks fine, they checked imei, sim card etc, all OK.
i told them from what i have read the forums mentioned a network problem, not a phone problem.
They connected with Samsung, they said they can try reflashing the Gear S, if i send it in to them,
7. i called Tmo again, and i spoke one rep who , GAVE ME A CLUE TO PROBLEM.. he found a note concerning the Gear S,
it said if the user puts the Gear S SIM cards (wiith the 'wearable plan') into another phone, it will block the account until the user reinstalls SIM into Gear S.
8. if this the problem, iit is not reseting itself when SIM is back in Gear S.
9. Not sure what to do next.
the last Tmo rep told to go into Tmo store, and they will try another new SIM, and ask them to try new SIM and my in anoother Gear S, but it seems many tmo stores dont have Gear S on hand, only display it am checking.
10. One idea may be to close the whole account and open new account for the Gear S.
did anybody have luck with this problem?
Click to expand...
Click to collapse
Call tmo back and have them make sure you have the right data plan I had the same problem and mine was on a tablet data plan not mobile/watch plan
I am experiencing a similar issue with TMobile. My thread is in here, http://forum.xda-developers.com/gear-s/help/gear-s-longer-able-to-register-tmobiles-t3040635
I have the factory unlocked international version, SM-R750W, and several people here said it wouldn't work. It worked perfectly for a day, then nothing. New SIM, it worked perfectly again for maybe 5 minutes.
HagbardCelineII said:
I am experiencing a similar issue with TMobile. My thread is in here, http://forum.xda-developers.com/gear-s/help/gear-s-longer-able-to-register-tmobiles-t3040635
I have the factory unlocked international version, SM-R750W, and several people here said it wouldn't work. It worked perfectly for a day, then nothing. New SIM, it worked perfectly again for maybe 5 minutes.
Click to expand...
Click to collapse
Still no luck, but maybe a couple more clues;
1. As the tech support advised, I went to a Tmo store, and they swapped the nano sim , no help.
2. I put in a sim from my friends tmo iPhone. It seemed great.
3. I called tech support back, they escalated problem to the engineering dept,
Said it may take 2 days to hear back...... So far no luck, please let me know if you have better results.
(I did check the plan online and with support to be sure it was correct.- the wearable / watch plan)
I feel it has something to do with there network 'rejecting' my imeo, but support checked that several times, as said it is correct.
perdikoylis said:
Still no luck, but maybe a couple more clues;
1. As the tech support advised, I went to a Tmo store, and they swapped the nano sim , no help.
2. I put in a sim from my friends tmo iPhone. It seemed great.
3. I called tech support back, they escalated problem to the engineering dept,
Said it may take 2 days to hear back...... So far no luck, please let me know if you have better results.
(I did check the plan online and with support to be sure it was correct.- the wearable / watch plan)
I feel it has something to do with there network 'rejecting' my imeo, but support checked that several times, as said it is correct.
Click to expand...
Click to collapse
They escalated my situation as soon as I called them on Tuesday and told me 3 days. Nothing yet.
Have you used the Tmobile IMEI check? http://www.t-mobile.com/verifyIMEI.aspx
I just tried it and it doesn't recognize my IMEI....But if that was going to be a problem, shouldn't that have meant it would never work? I can't think of any reason it would work for a day before they shut it off.
I had same result "did not recognize" with there Imei checker, further, the support reps checked several times and said it is Ok, My gear s is an unlocked AT&T, it did work for the first 2 months (until I removed sim to test in my iPhone ( I was considering switching all my phones to Tmo) Maybe coincidence? + But with a friends sim (from his iPhone ) it worked immediately , it even populated the Apn etc settings, but i did not leave on more than 1-2 minutes to test.
When I put my sim back in, it does not register, it does even show phone number, says:
"Phone not allowed MM#6" and emergency calls only.
I had this same issue come up. The way I solved it was to close out the account for my phone number tied to the watch wearable plan. And then I created a new phone account for the wearable plan with a new number. And got a new sim card from T-Mobile at the time of creating the new wearable plan / number. It seems that the phone number that was previously tied to my galaxy gear s was not blacklisted, but the services were limited on it because I had taken the sim card out of the gear s watch and put it into a cell phone to test if there was service on it. So that flagged the wearable phone number account like I was trying to steal data/phone service from T-Mobile by using the only $15 / month plan on an actual phone. Like said above, the services are supposed to be restored once you put the sim back into the watch, but there is a bug with T-Mobile's service in doing so. So in the end, I closed out the "flagged" account, opened a new account and will never put the sim card into a phone again in the future.
same the issue
snowinjune said:
The same here. I'm from Vietnam. My boss from USA visited Vietnam office and gifted me a T-mobile Gear S with the unlock code from T-mobile. Before unlocking the network, i upgrade it with the latest firmware from T-mobile (R750TUVU1A07). I then inserted a VN carrier SIM and did follow T-mobile guide as below:
After i receive the successful message, i still cant make call or send message. It keep saying that "Mobile network is not available". I tried with 3 nano sim cards from 3 biggest carriers in VN but there is no luck. (These sim cards work well on the iPhone 5).
BTW, the GPS also didn't work, even before or after unlocking with the code. It keep saying "GPS signal too weak. Please connect the Gear to mobile device via Bluetooth" (or something like that).
Click to expand...
Click to collapse
Hi...I have same the issue...now are you solve? You can help me this issue?...thank you
A good looking digital watch
zztoine said:
Hi...I have same the issue...now are you solve? You can help me this issue?...thank you
Click to expand...
Click to collapse
No, i follow this guide to try some features of the Gear S. But my phone become sluggish, and the GPS still not work.
http://forum.xda-developers.com/gea...ll-gear-manager-connect-t2934307/post60592795
So, right now, the Gear S is just a digital watch to me, ha ha.
The error is specifically a sim/network error unfortunately and more importantly this;
9 out of 10 times MM6 error means the phone has been reported lost/stolen and the IMEI has been network blocked.
Here are a few options that could be causing most of the issues I have read;
At&t is NOT open and a fan of allowing devices outside their network. Therefore its possible your device is literally reported as lost/and or locked to at&t and they dont want it on T-Mobile. And your best bet is to raise hell threating an investigation by the FCC.
At&t re-locked your device when att sim is put in.

Is the SamKey CSC change supposed to be permanent when switching SIMs?

Tried asking this elsewhere but got no response, because I'm currently stuck in CSC hell with my TMB S21 trying to take it to an AT&T MVNO. I tried everything before falling back to SamKey (flashing whatever firmware I could find...all U1 firmwares "debrand" the device but only T-Mo bands are available. Flashing any U firmware, no matter the carrier always shows the T-Mo boot screen and such). I ended up caving and buying a SamKey credit (and changed the CSC to XAA, which worked wonderfully and allowed my S21 use of B29/B30/N5 and some others). However, my primary carrier is still T-Mo and I also used this S21 to keep track of their 5G deployments in my area.
aaand my curiosity got the better of me and I decided to pop my spare T-Mo SIM back into the S21. It did the thing older Samsung phones would do (reboot to reconfigure carrier settings) and unfortunately this blew away everything I did with SamKey and locked the CSCs back to TMB/TMB/TMB. (As opposed to XAA/XAA/TMB)
So, my question for this: Is this intended behavior for Samkey's CSC change to undo itself if the original carrier's SIM is inserted? Because I did screw up one small detail using SamKey, and that was removing the (AT&T) SIM before putting the CSC change through. Not sure if that affects it. Would like to know before I attempt to repeat the process.
Thanks in advance.

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