T-Mobile SIM card on a Verizon Unlocked SM-G695U, Poor network - Samsung Galaxy S9+ Questions & Answers

Bought a S9+ recently after wifi on my Google Pixel XL stopped working. I'm getting dropped calls and static sound quality during calls, there's poor reception, signal strength is around -100dBm. I'm thinking that it's possibly due to using a T-mobile SIM card on Verizon unlocked phone. LTE discovery shows I'm on band 4, typically 1-2 bars when at home. Is there a firmware I can flash to get better signal strength?
baseband vers: G965USQU1ARBG
Service provider ends in : VZW/VZW/VZW

NekoXiu said:
Bought a S9+ recently after wifi on my Google Pixel XL stopped working. I'm getting dropped calls and static sound quality during calls, there's poor reception, signal strength is around -100dBm. I'm thinking that it's possibly due to using a T-mobile SIM card on Verizon unlocked phone. LTE discovery shows I'm on band 4, typically 1-2 bars when at home. Is there a firmware I can flash to get better signal strength?
baseband vers: G965USQU1ARBG
Service provider ends in : VZW/VZW/VZW
Click to expand...
Click to collapse
Odd Samsung phones work on all networks tho the firm would be better. Nice wish the S9 did it automatically like the S8. I don't think TMO blocks B13 in there firmware
Sent from my SM-G950U using Tapatalk
---------- Post added at 01:56 AM ---------- Previous post was at 01:54 AM ----------
NekoXiu said:
Bought a S9+ recently after wifi on my Google Pixel XL stopped working. I'm getting dropped calls and static sound quality during calls, there's poor reception, signal strength is around -100dBm. I'm thinking that it's possibly due to using a T-mobile SIM card on Verizon unlocked phone. LTE discovery shows I'm on band 4, typically 1-2 bars when at home. Is there a firmware I can flash to get better signal strength?
baseband vers: G965USQU1ARBG
Service provider ends in : VZW/VZW/VZW
Click to expand...
Click to collapse
Oh wait I read this wrong VZW blocks B12 on there firmware as well as B71 so yeah your try to down load the firmware other wise you can only access B2,4 and 66
Sent from my SM-G950U using Tapatalk

tengen31 said:
Odd Samsung phones work on all networks tho the firm would be better. Nice wish the S9 did it automatically like the S8. I don't think TMO blocks B13 in there firmware
Sent from my SM-G950U using Tapatalk
---------- Post added at 01:56 AM ---------- Previous post was at 01:54 AM ----------
Oh wait I read this wrong VZW blocks B12 on there firmware as well as B71 so yeah your try to down load the firmware other wise you can only access B2,4 and 66
Sent from my SM-G950U using Tapatalk
Click to expand...
Click to collapse
How do I go about this? Can you link me towards a guide on here?

NekoXiu said:
How do I go about this? Can you link me towards a guide on here?
Click to expand...
Click to collapse
Honestly I have no clue how to download firmware. This why I still use the S8 cause it does it automatically with the sim card
Sent from my SM-G950U using Tapatalk

NekoXiu said:
How do I go about this? Can you link me towards a guide on here?
Click to expand...
Click to collapse
all u need to do is change your firmware. All S9+ use the same firmware. I can help u with teamviewer if u are not comfortable. Just send me a DM. You may want Android P or I can get u on the latest unlocked XAA firmware and teach u along the way so that u can mess with it as u go along. There is almost no risk of bricking your phone as the bootloader and Knox stays locked when u change firmware

Related

[Q] c6806 no lte on AT&T

Hi guys,
I just got my C6806, and went to AT&T to activate it. But I'm only getting HSPA+, and no LTE speed. I'm using the apn setting that the phone automatically downloaded. Do I need to change the apn setting myself in order to get LTE? The phone is on 532 firmware.
Thanks.
eureka9 said:
Hi guys,
I just got my C6806, and went to AT&T to activate it. But I'm only getting HSPA+, and no LTE speed. I'm using the apn setting that the phone automatically downloaded. Do I need to change the apn setting myself in order to get LTE? The phone is on 532 firmware.
Thanks.
Click to expand...
Click to collapse
You may need to edit your APN. I would take the settings from another ATT LTE phone and create a new APN or just edit yours if necessary. I should be getting mine tomorrow and if you can't get yours to work I will do mine and let you know what I did.
Later
this is what I've got for att. I have c6833, so it's not on lte, but you can try it anyways. got those settings off att website.
pw is CINGULAR. things capitalized need to be put in capitalized.
Sent from my C6833 using xda app-developers app
Hi eureka9, I don't think this has to do with the APN settings. I believe this is an issue with AT&T based on my research with my dad's Xperia ZL.
Based on what I have read, AT&T has a list of approved devices (or IMEI, not sure which) that can use the LTE network (basically the phones you can buy from AT&T). Because Sony's new devices (XZ, XZL, XZU, etc.) are not offered by AT&T, the best you can get is HSPA.
The way to get around this is to have your line associated with an approved LTE device (e.g.: SGS3) then just take the SIM and put it in your ZU. I came off of a Galaxy Note 2 but I didn't not call AT&T to "activate" or anything, just put the SIM in. My ZU connects with LTE (when there's reception of course but that's a whole other issue). I can do a screenshot and post if you want (just need to know how to do that, got my ZU just yesterday and loving it).
With my dad's Xperia ZL, he was coming off a Moto Atrix 2 which has no LTE capabilities. Calling AT&T and activating the Xperia ZL didn't help as he still only got HSPA. I did a test and put in my SIM from my Galaxy Note 2 (this was several months back BTW) and voila, LTE connection.
As mentioned, I did some digging when working with my dad's XZL and besides having a SIM already activated with a LTE phone, some AT&T stores may be nice enough to put a "dummy" IMEI from a LTE phone (like a demo unit or something). If you Google "AT&T Xperia ZL LTE" (or something like that), you should find some posts on other forums that talk about this method (but YMMV depending on the store). I haven't done this myself but I'm planning on switching to T-Mobile anyways.
Hope this helps.
Thank you very much for your replies!
I tried the APN on a HTC One with LTE working, but no luck.
I think it's probably as nOrbX187 said, AT&T didn't want me to have LTE speed if I'm not buying stuff from them.. Anyway I'll try putting my gf's HTC One's sim card in the Ultra and see if it works.
By the way, if I register the HTC One's imei with the sim card of my Ultra, will the HTC One still have LTE?
My understanding is that if the ph is international unlocked, then you will not get lte on att. So my question is whether the xperia z ultra sold by sony USA is international unlocked or non international unlocked?
Can someone enlighten me on this?
Thanks
antmay1 said:
My understanding is that if the ph is international unlocked, then you will not get lte on att. So my question is whether the xperia z ultra sold by sony USA is international unlocked or non international unlocked?
Can someone enlighten me on this?
Thanks
Click to expand...
Click to collapse
It's completely unlocked.
As for the OP, his sim probably isn't provisioned for LTE. It works completely fine in my Ultra.
Funk2641 said:
It's completely unlocked.
As for the OP, his sim probably isn't provisioned for LTE. It works completely fine in my Ultra.
Click to expand...
Click to collapse
Funk2641,
Thanks for your reply. I have another question.
Since unlocked's IMEI isn't in the ATT database, do I need to provide another IMEI number from another LTE ph in order to get LTE service for my c6806?
Can you explain your process of having it provisioned for LTE?
Thanks again
Hi antmay1,
I believe that is the case. All you really need is to have the IMEI of an AT&T LTE phone on the SIM card. Again, the key is that the IMEI needs to be an AT&T LTE PHONE.
Again, I just took the SIM which has been activated for my Galaxy Note 2 and put it in my ZU and I get LTE.
As mentioned in my post, some AT&T stores may be able to help you out but YMMV per store.
Hope this helps.
nOrbX187 said:
Hi antmay1,
I believe that is the case. All you really need is to have the IMEI of an AT&T LTE phone on the SIM card. Again, the key is that the IMEI needs to be an AT&T LTE PHONE.
Again, I just took the SIM which has been activated for my Galaxy Note 2 and put it in my ZU and I get LTE.
As mentioned in my post, some AT&T stores may be able to help you out but YMMV per store.
Hope this helps.
Click to expand...
Click to collapse
Thanks nOrbX187 for your prompt reply. I have an iphone 4s LTE capable that I am not using. But the iphone 4s uses a different sim card and I cannot just drop it into the z Ultra. I will have to bring both the iphone 4s and Z Ultra to the ATT store for them to activate my ultra with LTE service.
you sure? i went from 4s to z ultra and its the same sim size. the 4s is "4G", but lte didnt come until the 5. if you call 611 from an iphone, itll send you to a iphone call center. explain you have a factory unlocked phone and theyll usually just set you up with right plan since they are only really trained for iphone support. the tech i called even called sony and got the specs of the hardware to troubleshoot my network issues. lol
Sent from my C6833 using xda app-developers app
ij0rgei said:
you sure? i went from 4s to z ultra and its the same sim size. the 4s is "4G", but lte didnt come until the 5. if you call 611 from an iphone, itll send you to a iphone call center. explain you have a factory unlocked phone and theyll usually just set you up with right plan since they are only really trained for iphone support. the tech i called even called sony and got the specs of the hardware to troubleshoot my network issues. lol
Sent from my C6833 using xda app-developers app
Click to expand...
Click to collapse
ij0rgei, Thanks for replying. I will check the size of the sim card on my iphone 4s. From what I have googled, 4s uses the nano sim card and the ultra uses the micro sim card. But I could very well be wrong since you switched from 4s to Ultra.
ij0rgei said:
you sure? i went from 4s to z ultra and its the same sim size. the 4s is "4G", but lte didnt come until the 5. if you call 611 from an iphone, itll send you to a iphone call center. explain you have a factory unlocked phone and theyll usually just set you up with right plan since they are only really trained for iphone support. the tech i called even called sony and got the specs of the hardware to troubleshoot my network issues. lol
Sent from my C6833 using xda app-developers app
Click to expand...
Click to collapse
ij0rgei,
Another question for you. When you setup the new ultra using the previous iphone 4s account, did you manage to get LTE on the new ultra?
Thanks,
Anthony
no LTE since I'm missing the 700 band. I got anxious and ordered the international version. att didn't have the phone in database so it defaulted me to a unlimited blackberry plan. they changed it to a generic unlimited plan instead. even as we speak, the phone icon I have is for a grayed out flip samsung when I'm managing my account online.
the plan they have me on is a LTE plan, but I'll probably never get to use it unless the USA changes bands all of a sudden. not planning on holding my breath for that one. I get 5mbps download on hspa+ so I'm happy. faster than most base home Internet services. lol
Sent from my C6833 using xda app-developers app
Solved
I chatted with att this afternoon, and have the imei of my gf's HTC One associated with my ZU. Both phones have lte now.
So the solution is to just get any ATT lte enabled phone, and register its imei with your ZU.
Do certain APNs need to be changed to allow the C8606 to enable the LTE?
Sent from my SAMSUNG-SGH-I467 using XDA Premium 4 mobile app
---------- Post added at 07:50 PM ---------- Previous post was at 07:12 PM ----------
eureka9 said:
I chatted with att this afternoon, and have the imei of my gf's HTC One associated with my ZU. Both phones have lte now.
So the solution is to just get any ATT lte enabled phone, and register its imei with your ZU.
Click to expand...
Click to collapse
How do you register the imei with the ZU?
awol.sin773 said:
Do certain APNs need to be changed to allow the C8606 to enable the LTE?
Sent from my SAMSUNG-SGH-I467 using XDA Premium 4 mobile app
---------- Post added at 07:50 PM ---------- Previous post was at 07:12 PM ----------
How do you register the imei with the ZU?
Click to expand...
Click to collapse
Just leave the default APN settings for the ZU for AT&T.
Just find a LTE at&t phone. Put your Sim in and make sure you get LTE data service. If not call AT&T and have them change your plan to an LTE plan. Once that is done you can take the Sim out and use it on the ZU and you should be getting LTE service.
That's all I did with mine. Setup my ion, or 920 forget which one it was, initially and ever since any phone I use can utilize LTE (provided it supports it that is and is unlocked if not an at&t phone)
Sent from my Sony Xperia™ Z Ultra
I got my 6806 and had the same problem. Luckily my corporate IT dept (it's a company number/SIM/data plan) was able to help me out.
They took an IMEI number from a GS4 that was overheating, and called AT&T to update my number and SIM with the IMEI from the GS4. Power down and back up again, and boom - LTE.
(Wow I need to update my sig!)
from iPhone 5
I put the nano sim in an adapter in the 6806, only had h+
Switched sim to the larger micro sim and had at&t switch imei to an android imei
Restart phone
Boom
Lte baby!

Flash AT&T Modem on G900T?

Can this be done? I ask because I am using the T-Mobile version on AT&T. LTE reception is not bad, it just can be better, especially in low signal areas? Does anyone have any information flashing the G900A modem for T-Mobile? I have searched and can't seem to find anything on this.
Radio and antenna wise, I believe they are the same device specs, so not like a number of years ago where there were antenna differences between them. T-Mobile radio supports all of T-Mobile and AT&T, AT&T radio however only partially supports T-Mobile (NO 4G AWS band, more limited LTE)
There are a number of people that have compared the two variants and no significant reception differences have been found
MattMJB0188 said:
Can this be done? I ask because I am using the T-Mobile version on AT&T. LTE reception is not bad, it just can be better, especially in low signal areas? Does anyone have any information flashing the G900A modem for T-Mobile? I have searched and can't seem to find anything on this.
Click to expand...
Click to collapse
risestar2 said:
Radio and antenna wise, I believe they are the same device specs, so not like a number of years ago where there were antenna differences between them. T-Mobile radio supports all of T-Mobile and AT&T, AT&T radio however only partially supports T-Mobile (NO 4G AWS band, more limited LTE)
There are a number of people that have compared the two variants and no significant reception differences have been found
Click to expand...
Click to collapse
Right. I understand that. But what I was asking if we could extract the AT&T modem from the G900A (AT&T Branded S5) and flash it on the T-Mobile S5 (G900T). That way the frequencies would be better optimized.
Now my T-Mobile S5 did pick up Band 4 LTE on AT&T and reception was excellent. This is mostly due to the fact that T-Mobile natively uses band 4 for LTE.
MattMJB0188 said:
Right. I understand that. But what I was asking if we could extract the AT&T modem from the G900A (AT&T Branded S5) and flash it on the T-Mobile S5 (G900T). That way the frequencies would be better optimized.
Now my T-Mobile S5 did pick up Band 4 LTE on AT&T and reception was excellent. This is mostly due to the fact that T-Mobile natively uses band 4 for LTE.
Click to expand...
Click to collapse
I doubt that has any effect at all. Frequencies don't get optimized at least not on your end. I think the phone does have a priority list for which bands to use but it automatically switches when one is better than the other.
Sent from my One using Tapatalk
luigi311 said:
I doubt that has any effect at all. Frequencies don't get optimized at least not on your end. I think the phone does have a priority list for which bands to use but it automatically switches when one is better than the other.
Sent from my One using Tapatalk
Click to expand...
Click to collapse
I don't know about that. Perhaps it is not "optimizing" but carriers definitely do something to their modems on smartphones to make them work best with their networks. While the T-Mobile S5 works almost flawlessly on AT&T, the AT&T S5 still gets better reception. Perhaps the difference is negligible, but its there.
MattMJB0188 said:
I don't know about that. Perhaps it is not "optimizing" but carriers definitely do something to their modems on smartphones to make them work best with their networks. While the T-Mobile S5 works almost flawlessly on AT&T, the AT&T S5 still gets better reception. Perhaps the difference is negligible, but its there.
Click to expand...
Click to collapse
have you compared both side by side?
kawaiichi said:
have you compared both side by side?
Click to expand...
Click to collapse
I am comparing my signal with the T-Mobile S5 from what I experienced on the AT&T S5. While signal difference in good reception areas is not noticeable, signal in lower reception areas is much weaker. The AT&T S5 would send texts messages almost 95% of the time at my work. With the T-Mobile S5, I am getting about a 10% success rate on text messages being sent.
slimc84 said:
I am comparing my signal with the T-Mobile S5 from what I experienced on the AT&T S5. While signal difference in good reception areas is not noticeable, signal in lower reception areas is much weaker. The AT&T S5 would send texts messages almost 95% of the time at my work. With the T-Mobile S5, I am getting about a 10% success rate on text messages being sent.
Click to expand...
Click to collapse
Yeah that's what I mean. But nonetheless, I still love the phone and this really isn't an issue the majority of the time. Hopefully soon, we can flash an AT&T modem.
MattMJB0188 said:
Yeah that's what I mean. But nonetheless, I still love the phone and this really isn't an issue the majority of the time. Hopefully soon, we can flash an AT&T modem.
Click to expand...
Click to collapse
The only way I have been able to increase texts going through successfully is by toggling airplane mode. I guess we will have to use that as a work around.
Having an AT&T modem on the Tmobile variant will make the device better handle connecting to LTE/HSPA networks and the phone will switch between frequencies them more efficiently. Now, I don't know if that's possible without bricking the phone.
daraj said:
Having an AT&T modem on the Tmobile variant will make the device better handle connecting to LTE/HSPA networks and the phone will switch between frequencies them more efficiently. Now, I don't know if that's possible without bricking the phone.
Click to expand...
Click to collapse
I think some guy did it with the Note 3. But thing is, the AT&T modem on the S5 has not been extracted.
MattMJB0188 said:
I think some guy did it with the Note 3. But thing is, the AT&T modem on the S5 has not been extracted.
Click to expand...
Click to collapse
Extracting the AT&T modem is not a problem I can get it quickly using the stock firmware file. But, still i think it will brick your tmobile s5.
daraj said:
Extracting the AT&T modem is not a problem I can get it quickly using the stock firmware file. But, still i think it will brick your tmobile s5.
Click to expand...
Click to collapse
How so? Would it be the same as flashing a T-Mobile modem?
slimc84 said:
I am comparing my signal with the T-Mobile S5 from what I experienced on the AT&T S5. While signal difference in good reception areas is not noticeable, signal in lower reception areas is much weaker. The AT&T S5 would send texts messages almost 95% of the time at my work. With the T-Mobile S5, I am getting about a 10% success rate on text messages being sent.
Click to expand...
Click to collapse
There's your answer right there. T-Mobile released a patch today to deal with poor SMS/MMS or texting issues. Doubt it has anything to do with signal.
Flash the latest T-Mobile update and then see it perform as you'd expect.
SeaFractor said:
There's your answer right there. T-Mobile released a patch today to deal with poor SMS/MMS or texting issues. Doubt it has anything to do with signal.
Flash the latest T-Mobile update and then see it perform as you'd expect.
Click to expand...
Click to collapse
MattMJB0188 said:
How so? Would it be the same as flashing a T-Mobile modem?
Click to expand...
Click to collapse
Well i was looking to this this with my t mobile s5 with no luck. like another guy said, in good signal areas signal doesnt change but i am in a bad signal area a lot and my phone jst doesnt switch frequecies like it should. I been using att on t mobile phones for a while and installing the att modem but with this one im having some trouble. i have the att modem.bin but when flashing it i get a bootloader response error
You're lucky to get an error and the bin file didn't flash! Please read and search more. There are many threads on xda about similar attempt types. Device-specific modem files cannot and should not be flashed on other devices. They are hardware specific and will cause your phone to stop working if you manage to get it to flash.
Setting up ATT APN settings will suffice for those using att Sim in a sm-g900t.
Sent from my SM-G900T using XDA Free mobile app
Commodore 64 said:
You're lucky to get an error and the bin file didn't flash! Please read and search more. There are many threads on xda about similar attempt types. Device-specific modem files cannot and should not be flashed on other devices. They are hardware specific and will cause your phone to stop working if you manage to get it to flash.
Setting up ATT APN settings will suffice for those using att Sim in a sm-g900t.
Sent from my SM-G900T using XDA Free mobile app
Click to expand...
Click to collapse
Yes i realize the risk, and I'm actually not too worried about them. I don't at all think the phone will stop working, however I still can't get the modem on here anyway. I have tried the tar, and bin with no luck. If anybody is willing to put something together I'm willing to test it out. Fortunately in my line of work, it wouldn't be a big deal to get another S5.
---------- Post added at 08:06 AM ---------- Previous post was at 08:03 AM ----------
Jtrain88 said:
Yes i realize the risk, and I'm actually not too worried about them. I don't at all think the phone will stop working, however I still can't get the modem on here anyway. I have tried the tar, and bin with no luck. If anybody is willing to put something together I'm willing to test it out. Fortunately in my line of work, it wouldn't be a big deal to get another S5.
Click to expand...
Click to collapse
Commodore 64 said:
You're lucky to get an error and the bin file didn't flash! Please read and search more. There are many threads on xda about similar attempt types. Device-specific modem files cannot and should not be flashed on other devices. They are hardware specific and will cause your phone to stop working if you manage to get it to flash.
Setting up ATT APN settings will suffice for those using att Sim in a sm-g900t.
Sent from my SM-G900T using XDA Free mobile app
Click to expand...
Click to collapse
I have made all the proper backups. Not to mention I'm not a noob to this, having built a few Roms myself.
Jtrain88 said:
Yes i realize the risk, and I'm actually not too worried about them. I don't at all think the phone will stop working, however I still can't get the modem on here anyway. I have tried the tar, and bin with no luck. If anybody is willing to put something together I'm willing to test it out. Fortunately in my line of work, it wouldn't be a big deal to get another S5.
---------- Post added at 08:06 AM ---------- Previous post was at 08:03 AM ----------
have made all the proper backups. Not to mention I'm not a noob to this, having built a few Roms myself.
Click to expand...
Click to collapse
If it's not taking in Odin, then I really don't think its going to work. Odin is like the master of all things Samsung for end users. The S5 has a lot of tampering prevention measurements made by Samsung. It wouldn't surprise me if the bootloader is doing a reference check with the modem to see if the modem matches the bootloader.
Also, I wouldn't go about flashing full ATT tar files to the T-Mobile S5. The partition tables are now different in the Galaxy S5 variants when in previous models they were the same. So flashing the ATT full tar could lead to your download mode being wiped.
What exactly is your problem? When you say "not switching frequencies" what exactly do you mean? Like going from LTE to HSPA+ or HSPA+ to LTE etc.
I have created an xposed module for myself that allows me to quickly switch my network preference at ease using a widget. I may share that once I tidy it up a bit. If your issue is being able to switch between HSPA+ LTE 2G etc then the widget should help you. I only use it to force 4G when in a low 4G environment or to force LTE when in low LTE environment.
BTW: What line of work do you do that you can simply get another S5? I'm jealous
elesbb said:
If it's not taking in Odin, then I really don't think its going to work. Odin is like the master of all things Samsung for end users. The S5 has a lot of tampering prevention measurements made by Samsung. It wouldn't surprise me if the bootloader is doing a reference check with the modem to see if the modem matches the bootloader.
Also, I wouldn't go about flashing full ATT tar files to the T-Mobile S5. The partition tables are now different in the Galaxy S5 variants when in previous models they were the same. So flashing the ATT full tar could lead to your download mode being wiped.
What exactly is your problem? When you say "not switching frequencies" what exactly do you mean? Like going from LTE to HSPA+ or HSPA+ to LTE etc.
I have created an xposed module for myself that allows me to quickly switch my network preference at ease using a widget. I may share that once I tidy it up a bit. If your issue is being able to switch between HSPA+ LTE 2G etc then the widget should help you. I only use it to force 4G when in a low 4G environment or to force LTE when in low LTE environment.
BTW: What line of work do you do that you can simply get another S5? I'm jealous
Click to expand...
Click to collapse
Yes I definitely wouldn't go as far as flashing att tar.... And sometimes when I lose signal it takes a heck of a lot longer to gain it back ad t mobile basebands as opposed to art ones. I get another phone about every month and a half to two months so I've definitely tested around on and and also yes when it switches from lte to hspa+ etc it doesn't switch it like any att phone I've had. Takes longer.
And as far as my line of work goes I just mean that I would be able to afford another one if this one broke.
Jtrain88 said:
Yes I definitely wouldn't go as far as flashing att tar.... And sometimes when I lose signal it takes a heck of a lot longer to gain it back ad t mobile basebands as opposed to art ones. I get another phone about every month and a half to two months so I've definitely tested around on and and also yes when it switches from lte to hspa+ etc it doesn't switch it like any att phone I've had. Takes longer.
And as far as my line of work goes I just mean that I would be able to afford another one if this one broke.
Click to expand...
Click to collapse
Might be taking longer due to the different radios. Weird though cause if it has an ATT sim and ATT APN configuration, it shouldn't have any delay and function like an ATT phone.
And yeah I'm jealous you can afford a new one if you broke this one takes me a year to save up in order to buy my next upgrade.

Will The Verizon Moto Z Be APN Locked?

I've been so excited for the Moto Z, but I just learned that the unlocked version will be GSM only. Great.
I use a local carrier that is CDMA. We use Verizon towers and LTE so phone calls, data, and text messages will work but MMS will not work without the proper APN settings. My girlfriend bought a Moto X from Moto Maker a couple years back, and since there was no unlocked version at the time she went with the Verizon version. She was unable to edit the APN settings until the Lollipop update hit her phone. For some reason Lollipop allowed her to edit her APN.
My question is, do you think the Verizon Moto Z will be the same way? Kinda of bummed I might have to miss out on this phone, or go without MMS. Really making me consider switching carriers.
Where did you learn that the unlocked Z will be GSM only? I would think they'd follow in the success of the MXP. I've personally ordered 5 of them. If the Z has an unlockable bootloader and its CDMA capable I'll be ordering them as well.
Sent from my XT1575 using Tapatalk
MMS and everything works fine for me on AT&T, just not LTE right now, even though the at&t LTE bands are supported.
---------- Post added at 10:44 PM ---------- Previous post was at 09:52 PM ----------
Update, you have to activate the phone on Verizon before you can use LTE. I just did it and paid $45 for the prepaid plan. And now I have LTE
joshw0000 said:
Where did you learn that the unlocked Z will be GSM only? I would think they'd follow in the success of the MXP. I've personally ordered 5 of them. If the Z has an unlockable bootloader and its CDMA capable I'll be ordering them as well.
Sent from my XT1575 using Tapatalk
Click to expand...
Click to collapse
This source and multiple others state it is GSM only.
http://www.droid-life.com/2016/06/09/unlocked-moto-z-will-gsm/
Doesn't matter now though. I bit the bullet and left my horrible local phone carrier and switched to Verizon! Using a Moto Z Force right now and loving it.
ThisIsCheez said:
This source and multiple others state it is GSM only.
http://www.droid-life.com/2016/06/09/unlocked-moto-z-will-gsm/
Doesn't matter now though. I bit the bullet and left my horrible local phone carrier and switched to Verizon! Using a Moto Z Force right now and loving it.
Click to expand...
Click to collapse
Yea I read that... All the other articles reference that one. The unlocked version just went on sale. We'll know for sure soon enough.
Sent from my XT1575 using Tapatalk
Update #2, LTE won't work. It keeps it for about an hour and then it drops
ThisIsCheez said:
This source and multiple others state it is GSM only.
http://www.droid-life.com/2016/06/09/unlocked-moto-z-will-gsm/
Doesn't matter now though. I bit the bullet and left my horrible local phone carrier and switched to Verizon! Using a Moto Z Force right now and loving it.
Click to expand...
Click to collapse
Hopefully you opted for the prepaid unlimited data plan
Mrswift91 said:
Update #2, LTE won't work. It keeps it for about an hour and then it drops
Click to expand...
Click to collapse
got the z force from moto maker. work perfectly on cricket with lte in Houston. at&t should be the same
vuphongkkk said:
got the z force from moto maker. work perfectly on cricket with lte in Houston. at&t should be the same
Click to expand...
Click to collapse
I'm in Maryland, Houston is still a different market and could be using a different band for their LTE. I'm stuck with H+, not a big deal, I still love my Z.
Mrswift91 said:
I'm in Maryland, Houston is still a different market and could be using a different band for their LTE. I'm stuck with H+, not a big deal, I still love my Z.
Click to expand...
Click to collapse
Do what I did leave MD and move to Texas

Just received August security patch for SM-G965U1 (unlocked S9+)

Wifi calling is enabled for Verizon (go to phone settings to enable). I am sure there
are other changes. Update G965U1UEU3ARH7.
fb
Hi, just posted the same update for GS9 Unlocked using AT&T. 495.78 MB.
Thanks for sharing... View attachment 4598513
Sent from my SM-G960U1 using Tapatalk
fbroce said:
Wifi calling is enabled for Verizon (go to phone settings to enable). I am sure there
are other changes. Update G965U1UEU3ARH7.
fb
Click to expand...
Click to collapse
Yes, and Secure Wi-Fi has now been added. I think it previously existed only on the European firmwares. Now we get it, too.
Any way to see if AT&T Wifi Calling will work as I do not see the option in Settings? I have US Unlocked GS9 on AT&T
If I flash this U1 for my ATT phone (running full Tmobile firmware now),
will I have Wifi calling with Tmobile? Or Wifi calling only works with Verizon with U1
sweetboy02125 said:
If I flash this U1 for my ATT phone (running full Tmobile firmware now),
will I have Wifi calling with Tmobile? Or Wifi calling only works with Verizon with U1
Click to expand...
Click to collapse
Despite what the websites like to post, there really isn't a VZW U1 and an ATT U1. There's just XAA U1. You'll get Wi-Fi Calling on every carrier with it now, except for ATT.
maddie01 said:
Any way to see if AT&T Wifi Calling will work as I do not see the option in Settings? I have US Unlocked GS9 on AT&T
Click to expand...
Click to collapse
Reading up on it (short summary) this is because AT&T uses a database of IMEI numbers to provision WiFi calling and VoLTE. Since our IMEI numbers from our phones are not in that database we won't be able to use WiFi calling or VoLTE.
Makes sense but is ridiculous for AT&T to restrict it. Has anyone ever called to ask to have thier Unlocked IMEI added to this "list" so that these features will work? Seems like it is a disadvantage for AT&T if it works for TMo and now Verizon but not AT&T...?
Just curious...
Sent from my SM-G960U1 using Tapatalk
maddie01 said:
Makes sense but is ridiculous for AT&T to restrict it. Has anyone ever called to ask to have thier Unlocked IMEI added to this "list" so that these features will work? Seems like it is a disadvantage for AT&T if it works for TMo and now Verizon but not AT&T...?
Just curious...
Sent from my SM-G960U1 using Tapatalk
Click to expand...
Click to collapse
It's odd for sure. Verizon has always had VoLTE on unlocked too. At least since the S7. Probably before that. ATT has never felt the need to change the policy.
maddie01 said:
Makes sense but is ridiculous for AT&T to restrict it. Has anyone ever called to ask to have thier Unlocked IMEI added to this "list" so that these features will work? Seems like it is a disadvantage for AT&T if it works for TMo and now Verizon but not AT&T...?
Just curious...
Sent from my SM-G960U1 using Tapatalk
Click to expand...
Click to collapse
Who can say if it's disadvantageous or not, for all we know it might be the technology differences between the networks. Also it does make sense... having specific IMEI numbers known to connect to carrier specific services like wifi calling and VoLTE ensures that everything works. It doesn't make it convenient for us and I will admit it would be nice to have the features.. but for calling via wifi there are options.
Personally I use pbx in a flash and bria softphone. With the right VoIP provider it's a good setup and doesn't break the bank at all. I haven't even spent more then 5 bucks maybe in a month. For me this is better then wifi calling and I don't have any problems.
As for adding our IMEI to that database I tried inquiring about it, but I do recall reading where some people may have had luck in doing this. I suspect it may require a bit of luck and/or perserveriance after my last discussion with AT&T customer service.
I explained the situation and what needed to be done while being placed on hold a few times. As the call continued I tried to be patient with the person I spoke too, but I admit it is not easy when he is saying that just because I see H data speed that it's actually VoLTE. When I mentioned the speed test and how it was H data speed (and that H data speeds are not VoLTE) he was saying that H data speeds were like blazing fast compared to LTE..
I had to politely finish the call before I either started to laugh or feel sorry for that rep.
scottusa2008 said:
I tried inquiring about it, but I do recall reading where some people may have had luck in doing this. I suspect it may require a bit of luck and/or perserveriance.
In my case I tried to be patient with the person I spoke too. After waiting on hold a few times the representative tried to say everything was normal.. and then proceeded but to say that just because I see H+ speed that it's actually VoLTE. When I mentioned the speed test and how it was H data speed (and that H data speeds are not VoLTE) he was saying that H data speeds were like blazing fast compared to LTE..
I had to politely finish the call before I either started to laugh or feel sorry for that rep.
Click to expand...
Click to collapse
Hahaa, i have had a similar situations in the store where i had to correct a worker that was completely explaining 3G/HSPA wrong. Incredible how incompetent they are unless you just want an iPhone...thanks
Sent from my iPad using Tapatalk
maddie01 said:
Makes sense but is ridiculous for AT&T to restrict it. Has anyone ever called to ask to have thier Unlocked IMEI added to this "list" so that these features will work? Seems like it is a disadvantage for AT&T if it works for TMo and now Verizon but not AT&T...?
Just curious...
Click to expand...
Click to collapse
The only thing I've seen some people do successfully to get VoLTE working on an unbranded unlocked device is to have AT&T provision a SIM card to an IMEI of a phone that is AT&T branded and capable of VoLTE. Then use that SIM card on the unbranded unlocked device.
guyd said:
The only thing I've seen some people do successfully to get VoLTE working on an unbranded unlocked device is to have AT&T provision a SIM card to an IMEI of a phone that is AT&T branded and capable of VoLTE. Then use that SIM card on the unbranded unlocked device.
Click to expand...
Click to collapse
Do you recall seeing if they said this work for prepaid and/or postpaid?
If it's that simple i'm gonna have to find a phone capable of VoLTE and see if this works
scottusa2008 said:
Do you recall seeing if they said this work for prepaid and/or postpaid?
If it's that simple i'm gonna have to find a phone capable of VoLTE and see if this works
Click to expand...
Click to collapse
Honestly don't recall, or if it was even mentioned.
So this new version includes wifi calling. You find this in the menu system somewhere? Does HD Voice also work and indicated like Verizon SM-G965U?
houston-tx said:
So this new version includes wifi calling. You find this in the menu system somewhere? Does HD Voice also work and indicated like Verizon SM-G965U?
Click to expand...
Click to collapse
Hd voice always worked on unlocked for Verizon. Wifi calling is found in the phone app's settings.
I flashed G965U1UES3ARI1 for XAA to SM-G965U1 and I can't find settings for Wifi calling. Are they visible or just built in and assumed to be there?
houston-tx said:
I flashed G965U1UES3ARI1 for XAA to SM-G965U1 and I can't find settings for Wifi calling. Are they visible or just built in and assumed to be there?
Click to expand...
Click to collapse
What carrier are you on? It's supported for SPR, TMB, and now VZW. Look in the settings of the actual phone app, not the device settings.
Verizon. Found it. Thought it was in Settings. Thank you!
houston-tx said:
Verizon. Found it. Thought it was in Settings. Thank you!
Click to expand...
Click to collapse
No problem. You're not the first person to look for it in the wrong place. U1 builds always place the setting there. So they stayed consistent doing it this way.

AT&T S9+ G965USQU3ARG7 to Sprint/Boost - Activation Issue

I have a Galaxy S9+ that currently has AT&T firmware G965USQU3ARG7. I registered the phone with Boost, but the hands-free activation will not start, nor do the usual methods work like ##72786#, *#*#72786#*#*, or update PRL (that option is not available on the software). So I was wondering if I could use Odin to flash the latest Sprint firmware to the phone? It looks like the latest Sprint firmware on Sammobile is G965USQU3BRK1, and appears to be a couple months newer than the ARG7 that is on the phone currently. Is this something that I could do, and that would allow me to then activate the phone?
Jordan
Jordan Keck said:
I have a Galaxy S9+ that currently has AT&T firmware G965USQU3ARG7. I registered the phone with Boost, but the hands-free activation will not start, nor do the usual methods work like ##72786#, *#*#72786#*#*, or update PRL (that option is not available on the software). So I was wondering if I could use Odin to flash the latest Sprint firmware to the phone? It looks like the latest Sprint firmware on Sammobile is G965USQU3BRK1, and appears to be a couple months newer than the ARG7 that is on the phone currently. Is this something that I could do, and that would allow me to then activate the phone?
Jordan
Click to expand...
Click to collapse
The latest Sprint firmware should be CSAB, which is pie?
Can you elaborate on hands free activation?
Activation for what?
You should have no problem using Odin to flash whatever firmware you want, but because you're on an MVNO, it'll take some tinkering to get everything working. First, I would check to see whether Boost sells the u version or the u1 and flash according to the phone they sell under their own service.
Sent from my SM-G965U1 using Tapatalk
Thanks for clarifying the latest version! Its weird b/c Sammobile did not list CSAB for Sprint, but I did see it listed for Verizon. Either way, that should work for my application.
So the "Hands Free Activation" is what Sprint/Boost/Virgin use to program the phone to work with the network. Simply inserting a SIM card like you can do with the GSM carriers is not enough to get the phone working with their network. You have to tell the carrier the IMEI and SIM of the phone, then the phone will go through the "Hands Free Activation" process, then it is ready to use.
Both Sprint and Boost phones use the same firmware, and the specifics to each carrier are handled during the "Hands Free Activation". So I will try out the CSAB firmware later today and report back on if that works!
The issue you're running into I don't think is necessarily firmware related. The phone is probably carrier locked to Sprint. Has sprint provided you an unlock code to switch carriers?
As far as switching firmware, because you're with an MVNO, personally I would not flash a "U" (carrier specific) firmware unless Boost has carrier specific features you would benefit from using (Which I doubt).
Reason I say that, Sprint uses a different technology/system to provide simultaneous voice and data and using a Sprint (or other U firmware) might cause compatibility issues, in that regard, because you're on an MVNO that can't/may not utilize Sprint's unique system.
That being said, Sprint has (finally) gotten on board with VoLTE which is universal, and has started to implement this into their network.
Most MVNO's have limitations on BYOP (bring your own phone) plans because of the firmware carrier restrictions placed on the phone. For instance, when I switched from Verizon to Straight Talk, I immediately wasn't able to use simultaneous voice/data because I was running Verizon configured firmware through a different carrier.
This was corrected by flashing a universal (Factory Unlocked) G965U1 firmware. This enables the universal VoLTE option the phone has instead of trying to bridge voice/data with Verizon's preset configurations.
Most MVNOs that sell devices with their service, almost unanimously, sell factory unlocked phones that aren't branded to any specific carrier.
Your best option, in my opinion, is to emulate the devices THEY sell (including Boost) by flashing G965U1 firmware (latest package is CSA8). Either download from XDA or Sammobile "XAA Unknown" region for carrier.
That firmware package, when loading it into ODIN you'll have two CSC files. Don't use the CSC_HOME file, use the other one. This will perform a full wipe (backup your data) and change your carrier to "Unknown" and effectively make your phone universal (which boost prefers).
Since Boost has already activated your IMEI on their network, your phone "should" automatically configure itself to their network at the initial setup after the flash.
If you continue to run into any hiccups, let me know and I'll try to help you work through them. Let me know either way how it works out for you. [emoji16]
Sent from my SM-G965U1 using Tapatalk
---------- Post added at 06:42 PM ---------- Previous post was at 06:37 PM ----------
By the way, flashing U firmware will remove all traces of Sprint from the phone (All the bloatware) and enable free caller ID. Which is a plus of using Unlocked firmware. You can download the boost app through Google play to manage your account after you set up the phone again.
Sent from my SM-G965U1 using Tapatalk
---------- Post added at 06:42 PM ---------- Previous post was at 06:42 PM ----------
U1 firmware, not U*
Sent from my SM-G965U1 using Tapatalk
---------- Post added at 06:45 PM ---------- Previous post was at 06:42 PM ----------
I just noticed you said the phone was AT&T branded. As far as I know, AT&T Sim locks their phones and you'll need the unlock code from AT&T to use the phone on another carrier regardless of whether you use ODIN or not. I'm assuming you have this code if you're trying to use the phone dialer to change carriers, correct?
Sent from my SM-G965U1 using Tapatalk
You are correct that I did get the SIM unlock code for the phone! I also really like the idea of flashing the U1 version of the firmware to the phone! I will get that download started and try that later today, and keep you posted!
Thanks!
Jordan
You also didn't mention anything about APN (Access point name). This points your device to the appropriate bands and connects to the provided network. You could also try googling Boost's APN settings and changing yours accordingly and seeing if youre then able to connect to their network. Sometimes this must be done manually when not performing a factory reset after switching carriers/sim cards.
Try changing the APN settings and see if you're able to connect. If you can, great!
If you can connect to both voice/data simultaneously, even better.
Then it's just a matter of either leaving the current firmware or switching to unlocked to remove the bloatware and gain free caller ID. [emoji16]
Sent from my SM-G965U1 using Tapatalk
---------- Post added at 07:25 PM ---------- Previous post was at 07:24 PM ----------
https://bestmvno.com/apn-settings/boost-mobile-apn-settings/
Sent from my SM-G965U1 using Tapatalk
Its funny that you mention the APN because that was actually the first thing that I tried I found a few different configurations that did not seem to work unfortunately! I am certainly not ruling that out as part of my solution to getting this phone activated though.
The simultaneous voice/data thing is where you sold me! If I can make that work then I would be STOKED!
Jordan Keck said:
Its funny that you mention the APN because that was actually the first thing that I tried I found a few different configurations that did not seem to work unfortunately! I am certainly not ruling that out as part of my solution to getting this phone activated though.
The simultaneous voice/data thing is where you sold me! If I can make that work then I would be STOKED!
Click to expand...
Click to collapse
This post may help with the missing option you were talking about.
https://www.google.com/amp/s/forum....pn-settings-boost-mobile-tested-t3603786/amp/
Sprint is still in it's early stages of VoLTE integration. They were suppose to start implementing it last fall, but that was delayed until December. Most markets are seeing VoLTE already. As long as your APN settings are correct and you're running U1 firmware, you "should" have VoLTE right off the bat. If not, it's a matter of time for VoLTE to pop up on your phone one day soon and have it at your disposal.
Sent from my SM-G965U1 using Tapatalk
---------- Post added at 07:51 PM ---------- Previous post was at 07:35 PM ----------
Jordan Keck said:
I have a Galaxy S9+ that currently has AT&T firmware G965USQU3ARG7. I registered the phone with Boost, but the hands-free activation will not start, nor do the usual methods work like ##72786#, *#*#72786#*#*, or update PRL (that option is not available on the software). So I was wondering if I could use Odin to flash the latest Sprint firmware to the phone? It looks like the latest Sprint firmware on Sammobile is G965USQU3BRK1, and appears to be a couple months newer than the ARG7 that is on the phone currently. Is this something that I could do, and that would allow me to then activate the phone?
Jordan
Click to expand...
Click to collapse
Jordan, try this code and apply the unlock code. #7465625*638*# AT&T does something differently sometimes.
Sent from my SM-G965U1 using Tapatalk
---------- Post added at 07:57 PM ---------- Previous post was at 07:51 PM ----------
I think you may have been given the wrong dialer code to enter the sim unlock prompt. ?
hyperblu, thanks so much! I will have access to the phone in a couple of hours and will try that code!
If that doesn't work, try #7465625*638*#
Sent from my SM-G965U1 using Tapatalk
---------- Post added at 08:01 PM ---------- Previous post was at 08:00 PM ----------
The 2nd one will probably be the correct one. The code you provided that you claim did nothing is for a Galaxy s6 if I'm not mistaken. [emoji16]
Sent from my SM-G965U1 using Tapatalk
---------- Post added at 08:15 PM ---------- Previous post was at 08:01 PM ----------
I've never used Sprint or Boost, but I assume you're not using a sim card, correct? You're going from GSM to CDMA and because CDMA doesn't use a sim card...which is the trigger for the sim unlock prompt, that explains why you're not getting a pop-up. The dialer code you tried that did nothing was the likely the wrong code to trigger the prompt too. Let me know. [emoji6]
Sent from my SM-G965U1 using Tapatalk
---------- Post added at 08:25 PM ---------- Previous post was at 08:15 PM ----------
And just to clarify... Your sim unlock code is a completely separate code from your dialer code to trigger the prompt. I don't want you to mistaken the dialer code as an unlock code. The unlock code will have to be provided from AT&T and you'll have to provide your IMEI to release your phone from their network and they will provide you with an unlock code. If the device is paid in full, you can request an unlock code through their website after providing the IMEI number.
If you have a separate unlock code that you haven't mentioned, good.
Sent from my SM-G965U1 using Tapatalk
Get it working? Don't leave me hanging!! [emoji23]
Sent from my SM-G965U1 using Tapatalk
I did get it working!! I used the #7465625*638*# code first to re-enter the unlock, which was successful. After a restart, the phone was still not activating, so I used Odin to install the Sprint version of the firmware (not the U1 because it was not downloaded yet). The phone restarted and immediately recognized the SIM card change and began programming/activating! I now have it working, and am in the process of writing the U1 firmware as I am typing this response!
Thanks so much for your help on this!!
Jordan
It didn't immediately start programming/activating because a restart alone wont trigger a CSC change. You have to perform a factory reset or completely flash with ODIN for the CSC to switch to another carrier/region whenever you're switching between gsm/CDMA networks. Going from a GSM to a GSM carrier it would've made the switch immediately, with the exception of maybe tinkering with the APN settings.
Switching between gsm and CDMA is a whole different animal and requires a full reset to make the required changes.
Sent from my SM-G965U1 using Tapatalk
---------- Post added at 05:52 AM ---------- Previous post was at 05:06 AM ----------
Jordan Keck said:
I did get it working!! I used the #7465625*638*# code first to re-enter the unlock, which was successful. After a restart, the phone was still not activating, so I used Odin to install the Sprint version of the firmware (not the U1 because it was not downloaded yet). The phone restarted and immediately recognized the SIM card change and began programming/activating! I now have it working, and am in the process of writing the U1 firmware as I am typing this response!
Thanks so much for your help on this!!
Jordan
Click to expand...
Click to collapse
I think you'll like the U1 firmware much better. It won't have the Flipboard and unnecessary/unwanted crap hogging your memory/storage. It's very barebones and unlocks some free goodies too. Glad you got it working though [emoji106] without it, you probably wouldn't be able to get VoLTE with boost. We're you able to make voice/data simultaneously on the sprint firmware?
Sent from my SM-G965U1 using Tapatalk
ATT phone. I’m on the latest Tmobile Pie firmware. I’m switching to Sprint. What is the best way to switch firmware without “full wipe” and don’t screw up the data/phone? THANKS
Sent from my iPad using Tapatalk
sweetboy02125 said:
ATT phone. I’m on the latest Tmobile Pie firmware. I’m switching to Sprint. What is the best way to switch firmware without “full wipe” and don’t screw up the data/phone? THANKS
Sent from my iPad using Tapatalk
Click to expand...
Click to collapse
Full wipe has to happen.
Sent from my SM-G965U1 using Tapatalk
hyperblu said:
Full wipe has to happen.
Sent from my SM-G965U1 using Tapatalk
Click to expand...
Click to collapse
Nope. NVM. Put Sprint phone in and it auto configs to Sprint (it auto removed some Tmobile apps and installed bunch of Sprint bloats. Very good. No need to full wipe.
Sent from my SM-G965U using Tapatalk
sweetboy02125 said:
Nope. NVM. Put Sprint phone in and it auto configs to Sprint (it auto removed some Tmobile apps and installed bunch of Sprint bloats. Very good. No need to full wipe.
Sent from my SM-G965U using Tapatalk
Click to expand...
Click to collapse
Oh wait... You're running 965u firmware. The major carriers will play nice with that. U1 is a different story.
Sent from my SM-G965U1 using Tapatalk
hyperblu said:
Oh wait... You're running 965u firmware. The major carriers will play nice with that. U1 is a different story.
Sent from my SM-G965U1 using Tapatalk
Click to expand...
Click to collapse
Yeah but i just find out the ATT ver missing band 25 and 26 for Sprint. Sprint needs 25, 26, 41 for LTE and ATT ver only has 41. U1 locked phones have everything
sweetboy02125 said:
Yeah but i just find out the ATT ver missing band 25 and 26 for Sprint. Sprint needs 25, 26, 41 for LTE and ATT ver only has 41. U1 locked phones have everything
Click to expand...
Click to collapse
The bands used are determined by firmware. All the carriers , Sprint included, all have capability of running on 26.
Sent from my SM-G965U1 using Tapatalk
hyperblu said:
The bands used are determined by firmware. All the carriers , Sprint included, all have capability of running on 26.
Sent from my SM-G965U1 using Tapatalk
Click to expand...
Click to collapse
Try this *#0011# and tell me if you see 25 and 26. Only 41 there

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