Unlocked S9+ Problem - Samsung Galaxy S9+ Questions & Answers

I bought an unlocked s9+ from ebay and later found out that its country sale came from Panama. My canadian GSM network does work on the device, but certain apps like samsung members show spanish promotions or samsung pay not being available.
Can the csc code and country be changed in this case?
Model: SM-G9650
CPU: Snapdragon 845

Did you setup the phone and then inserted your sim card? I believe that now that you have your sim card in, if you make a factory reset to your phone, your csc will change to the csc of your country/sim card.
I live in Greece, I bought my phone (international exynos s9+ unlocked) from an international seller and the csc was ITV (from Italy). I inserted my sim card, factory reseted the phone with the sim card in, and when the factory reset was completed my csc was changed to EUR (Greece).
You can try it.

madvinegar said:
Did you setup the phone and then inserted your sim card? I believe that now that you have your sim card in, if you make a factory reset to your phone, your csc will change to the csc of your country/sim card.
I live in Greece, I bought my phone (international exynos s9+ unlocked) from an international seller and the csc was ITV (from Italy). I inserted my sim card, factory reseted the phone with the sim card in, and when the factory reset was completed my csc was changed to EUR (Greece).
You can try it.
Click to expand...
Click to collapse
I will update the result on this solution after i try it.

madvinegar said:
Did you setup the phone and then inserted your sim card? I believe that now that you have your sim card in, if you make a factory reset to your phone, your csc will change to the csc of your country/sim card.
I live in Greece, I bought my phone (international exynos s9+ unlocked) from an international seller and the csc was ITV (from Italy). I inserted my sim card, factory reseted the phone with the sim card in, and when the factory reset was completed my csc was changed to EUR (Greece).
You can try it.
Click to expand...
Click to collapse
Did not work, unfortunately.

bosejry said:
Did not work, unfortunately.
Click to expand...
Click to collapse
This might be your best option.
https://forum.xda-developers.com/galaxy-s9-plus/how-to/g9650-snapdragon-csc-change-stock-t3815136

varcor said:
This might be your best option.
https://forum.xda-developers.com/galaxy-s9-plus/how-to/g9650-snapdragon-csc-change-stock-t3815136
Click to expand...
Click to collapse
Have you tried this method, and has it worked?

bosejry said:
Have you tried this method, and has it worked?
Click to expand...
Click to collapse
No, I haven't however I would ask Lukesky1313 since it's his method. It would seem it's either this option or flashing a custom ROM which will eliminate functionality of Knox, Samsung Pay, Secure Folder, Samsung Health and possibly others.

Related

Autopreconfig, new service provider notification

Sometimes I get a notification from AutoPreconfig, asking me to use new apps and configurations from my new service provider. If I open the notification, it says that to use apps and configurations from my new provider, I need to restore my phone, all my user data shall be lost, etc. I can press "ok" and nothing happens.
Why does that happen?
Anyone else getting this? Can I get rid of it without factory reseting the phone?
madvinegar said:
Sometimes I get a notification from AutoPreconfig, asking me to use new apps and configurations from my new service provider. If I open the notification, it says that to use apps and configurations from my new provider, I need to restore my phone, all my user data shall be lost, etc. I can press "ok" and nothing happens.
Why does that happen?
Anyone else getting this? Can I get rid of it without factory reseting the phone?
Click to expand...
Click to collapse
I think that this happens when for an example you live in Spain and you bought a phone for European union not Spain but Germany.... When you incert your sim card for first time it reads that your provider is in Spain but your CSC belongs to Germany so want to change your CSC from Germany to Spain .. That's why it asks you to factory reset to change your CSC...
PLEASE help from someone if I'm wrong....
tsiglas said:
I think that this happens when for an example you live in Spain and you bought a phone for European union not Spain but Germany.... When you incert your sim card for first time it reads that your provider is in Spain but your CSC belongs to Germany so want to change your CSC from Germany to Spain .. That's why it asks you to factory reset to change your CSC...
PLEASE help from someone if I'm wrong....
Click to expand...
Click to collapse
Thanx... That makes sense, but is it something new...?
I used to have an s7edge with Poland csc (XEO) but never got this message even if my sim card is from a Greek provider.
Now, I see that my S9+ has Italian csc (ITV) and I get this message because my sim card is from a Greek provider...
Why is Samsung doing this to their new models...?
If I actually do the factory reset, what more will I gain? Is it worth it or nothing will actually change apart from the csc...? Everything is working just fine now.
madvinegar said:
Thanx... That makes sense, but is it something new...?
I used to have an s7edge with Poland csc (XEO) but never got this message even if my sim card is from a Greek provider.
Now, I see that my S9+ has Italian csc (ITV) and I get this message because my sim card is from a Greek provider...
Why is Samsung doing this to their new models...?
If I actually do the factory reset, what more will I gain? Is it worth it or nothing will actually change apart from the csc...? Everything is working just fine now.
Click to expand...
Click to collapse
Yes that's exactly what is happening.
Ρε πατρίδα μπες στο myphone.gr στο θέμα του s9+ και θα στα εξηγήσουμε όλα εκεί...
So I decided to bite the bullet, and made a factory reset through the settings, with my Sim Card inserted.
It rebooted my phone, after first reboot (just on the first language selection page that appears) it prompted the message again (Autopreconfig), and asked me to revert to factory settings again so as to set up the new sim card.
I selected OK, the phone rebooted once more and this time it booted directly to my language (i.e. to the language of my carrier's sim card).
I checked the settings and also downloaded an app from Play Store to check my CSC, and indeed my CSC has changed to my country.
I had ITV (Italy) csc, and now I have EUR (Greece) csc.
So now all is ok and set up to the correct csc.
Fyi, before doing the above I had backed up everything to samsung cloud.
Hello all,
Same problem here but, in my case, I have used the phone for some months... images, saven configs in many apps, etc...
I know such things are not saved in the samsung cloud... is there any other way to change this? Do all of them need a factory reset?
I use Samsung Galaxy Note 10+ Android 11. I intently changed CSC to THL (Thailand) to activate built in call recorder. But now every time I restart my phone CIDmanager warning appears as in the screenshot. How to get rid of it? I don't wanna change CSC code back to my home country's.
No one knows the solution?

Recently unlocked Galaxy J7 no service issue

I recently unlocked my Galaxy J7 Sky Pro from the tracfone carrier (called them, got two codes, put them in and device said it is now unlocked).
Now when I try to insert a different sim card the phone seems to have no service, even though the sim card is recognized (asks me for the pin and logs in properly). In fact that sim card is a prepaid european one, from the german carrier O2, but since J7 Sky Pro can do LTE connection I though that should work fine?
What do you guys think, is there something I could do to fix the issue?
My exact model is:
SM-S727VL
And android version is:
6.0.1
One kind of annoying thing is that even though I unlocked the phone, it still shows the tracfone logo on startup. Maybe the firmware is preventing the european sim card to connect to a tower? Is there some "international" version of firmware I could update to to make it work?
Thanks for any suggestion!

Help! Not sure which phone I got from amazon! Factory unlocked or ATT or TMO?

I purchase a like-new condition Samsung Galaxy S9+ phone from Amazon Warehouse for international travel coming up in couple days. I figured I would have a better chance of getting an authentic phone from Amazon than from ebay sellers. I received the phone yesterday, and here is the situation with the phone:
- The box of the phone says "unlocked by Samsung"
- The sticker on the back of the phone has the model # SM-G965UZBAXAA and IMEI number of a factory unlocked phone
- The actual IMEI of the phone however shows model # SM-G965UZBAATT, which corresponds to the AT&T carrier locked phone
- When I turn on the phone, it shows T-mobile screen and has T-mobile apps on it
How do I determine whether this is a AT&T phone, or a T-mobile phone or something else? Unfortunately, I do not have either TMO or ATT sim cards that I can use to check which network the phone works on. How do I know whether this phone is unlocked and if it is will work internationally? I am not sure how to explain the imei of the phone coming up with ATT model number, yet the phone shows TMO screen.
Please help as I need to get this resolved today, and don't have time to purchase another phone. Thanks much in advance!!
prince_a1 said:
I purchase a like-new condition Samsung Galaxy S9+ phone from Amazon Warehouse for international travel coming up in couple days. I figured I would have a better chance of getting an authentic phone from Amazon than from ebay sellers. I received the phone yesterday, and here is the situation with the phone:
- The box of the phone says "unlocked by Samsung"
- The sticker on the back of the phone has the model # SM-G965UZBAXAA and IMEI number of a factory unlocked phone
- The actual IMEI of the phone however shows model # SM-G965UZBAATT, which corresponds to the AT&T carrier locked phone
- When I turn on the phone, it shows T-mobile screen and has T-mobile apps on it
How do I determine whether this is a AT&T phone, or a T-mobile phone or something else? Unfortunately, I do not have either TMO or ATT sim cards that I can use to check which network the phone works on. How do I know whether this phone is unlocked and if it is will work internationally? I am not sure how to explain the imei of the phone coming up with ATT model number, yet the phone shows TMO screen.
Please help as I need to get this resolved today, and don't have time to purchase another phone. Thanks much in advance!!
Click to expand...
Click to collapse
put any sim in it and it should work these phones are multi carrier means all the us models are the same if its att imei id say its unlocked since obviously last used was t mobile but if you put any sim in it other than att it should accept it and not say unnsuported sim and or ask for unlock code
to further this as i said the us models are all the same. They have a file called CSC which determines carrier based settings you can put in a tmobile sim and it will repersonalize for tmobile then swap to att and att will show up..
Its the way of the future and actually quite nice as one firmware pretty much covers all carriers other than specific user data which is that carriers apps
it may be unlocked obviously the listing was wrong but xaa is factory unlocked for sims, You can reflash xaa if it is unlocked for non carrier branding,But id put any sim in and see
TheMadScientist said:
They have a file called CSC which determines carrier based settings you can put in a tmobile sim and it will repersonalize for tmobile then swap to att and att will show up..
Click to expand...
Click to collapse
Thanks for your response. So if the previous owner put a T-mobile sim in the AT&T phone, then would it show the T-mobile screen at startup, and also have the T-mobile branded apps?
prince_a1 said:
Thanks for your response. So if the previous owner put a T-mobile sim in the AT&T phone, then would it show the T-mobile screen at startup, and also have the T-mobile branded apps?
Click to expand...
Click to collapse
Yes the csc files are multi carrier the phone will do a New sim inserted please reboot to apply new carrier configuration
and it will reboot and install the inserted sims carrier based bloat apps
TheMadScientist said:
Yes the csc files are multi carrier the phone will do a New sim inserted please reboot to apply new carrier configuration
and it will reboot and install the inserted sims carrier based bloat apps
Click to expand...
Click to collapse
Thanks again! Is it safe for me to do a factory reset on the phone? I wasn't sure if it was rooted and whether a factory reset might brick it. If I do a factory reset, what would it restore to - the AT&T or TMO configuration, or something else?
prince_a1 said:
Thanks again! Is it safe for me to do a factory reset on the phone? I wasn't sure if it was rooted and whether a factory reset might brick it. If I do a factory reset, what would it restore to - the AT&T or TMO configuration, or something else?
Click to expand...
Click to collapse
Yes its safe go into settings and account backup restore it should show factory data reset Thats the proper way to get rig of a google account on the device It will stay as is until a new sim is inserted factory resets have nothing to do with it
TheMadScientist said:
Yes its safe go into settings and account backup restore it should show factory data reset Thats the proper way to get rig of a google account on the device It will stay as is until a new sim is inserted factory resets have nothing to do with it
Click to expand...
Click to collapse
Thank you so much for the information! Highly appreciated!!
TheMadScientist said:
Yes the csc files are multi carrier the phone will do a New sim inserted please reboot to apply new carrier configuration
and it will reboot and install the inserted sims carrier based bloat apps
Click to expand...
Click to collapse
I downloaded the phoneinfo app, and here it what it shows:
Firmware's CSC code: XAA
Active CSC code: TMB
IMEI check shows model ending in: ATT
That made me highly confused as to whether this was a AT&T phone, a T-mobile phone or whether it was originally sold as factory unlocked.
prince_a1 said:
I downloaded the phoneinfo app, and here it what it shows:
Firmware's CSC code: XAA
Active CSC code: TMB
IMEI check shows model ending in: ATT
That made me highly confused as to whether this was a AT&T phone, a T-mobile phone or whether it was originally sold as factory unlocked.
Click to expand...
Click to collapse
So originally it was a att device. Who ever used it used it on tmobile but on xaa which is debloated unlocked
TheMadScientist said:
So originally it was a att device. Who ever used it used it on tmobile but on xaa which is debloated unlocked
Click to expand...
Click to collapse
Under Service Provider SW ver., it shows TMB/XAA/ATT
I am trying to understand what this means, why would it show TMB, XAA and ATT? Does it mean the phone was originally AT&T, then someone installed XAA firmware on it and used it on T-mobile. If that is true, is there a way for me to verify whether the current installed firmware is XAA?
prince_a1 said:
Under Service Provider SW ver., it shows TMB/XAA/ATT
I am trying to understand what this means, why would it show TMB, XAA and ATT? Does it mean the phone was originally AT&T, then someone installed XAA firmware on it and used it on T-mobile. If that is true, is there a way for me to verify whether the current installed firmware is XAA?
Click to expand...
Click to collapse
That is correct. You see it now. The third csc code is the original device. The second is what csc you have running. And the first is or was sim inserted.
Look in settings about phone and software info. At the bottom somewhere it should show you
TheMadScientist said:
That is correct. You see it now. The third csc code is the original device. The second is what csc you have running. And the first is or was sim inserted.
Look in settings about phone and software info. At the bottom somewhere it should show you
Click to expand...
Click to collapse
Yes, what I pasted above is from about phone->software info. It shows the service provider sw version as TMB/XAA/ATT. Thank you!!

S9+ SIM Card model change (CSC related?)

Hopefully there is someone here more knowledgeable than myself that can help me. I recently ordered an S9+ SM-G9650 model from amazon with the intent of unlocking the bootloader, etc. When I got it, everything looked alright, but I got to a point in the setup when I couldn't progress without putting in a sim card. I did and it rebooted twice, one of those times showing a blue screen that from my research seems to be related to CSC and changing the software region based on the sim card inserted. My sim card is a US Tracfone AT&T version sim card by the way. After that, I finished setting up the phone and found the model number to be SM-G965U1. I have factory reset from the bootloader and from within android to no avail. From my research the CSC region change thing can only change the CSC values to certain values based on the phone's actual model number, and not the model number itself. What I am saying is, is it possible that my US sim card somehow changed my phone from the bootloader-unlockable SM-G9650 model to the locked SM-G965U1 model, or did I actually receive the wrong model device?
cosmogroid said:
Hopefully there is someone here more knowledgeable than myself that can help me. I recently ordered an S9+ SM-G9650 model from amazon with the intent of unlocking the bootloader, etc. When I got it, everything looked alright, but I got to a point in the setup when I couldn't progress without putting in a sim card. I did and it rebooted twice, one of those times showing a blue screen that from my research seems to be related to CSC and changing the software region based on the sim card inserted. My sim card is a US Tracfone AT&T version sim card by the way. After that, I finished setting up the phone and found the model number to be SM-G965U1. I have factory reset from the bootloader and from within android to no avail. From my research the CSC region change thing can only change the CSC values to certain values based on the phone's actual model number, and not the model number itself. What I am saying is, is it possible that my US sim card somehow changed my phone from the bootloader-unlockable SM-G9650 model to the locked SM-G965U1 model, or did I actually receive the wrong model device?
Click to expand...
Click to collapse
More than likely wrong model. It didn't change the bootloader. I run a9650 on cricket. I would send it back and raise hell i see this happen a lot

How to change CSC for SM-G991U?

Hello,
I have a SIM unlocked S21 from Xfinity Mobile that I'm now using on Verizon Wireless. I need to change the CSC to VZW, anyone know how? I tried all the dialer codes, and also SamKEY but no luck so far.
SamKEY says "unsupported firmware, please downgrade your firmware".
Since January 2021, it's not easy to change CSC, some people do it by flashing firmwares then block whatever app checks SIM & CSC compatibility.
You can check this thread if you're into action.
Thanks, I tried that but somehow it ignores that the VZW SIM card is VZW, and it keeps the CSC as CCT/CCT/CCT.
Even putting in an AT&T sim card, it still keeps it as CCT/CCT/CCT. The carrier name is stuck as "Xfinity Mobile" also, no matter the SIM.
I wish Samsung would implement the "BYOD" thing already for this phone.. Or maybe SamKEY will work eventually...
What's interesting is that it changes the APN to the correct one automatically for the 3 SIM cards I've tried (VZW, CCT, ATT)
Firmware bug I guess, or Samsung has not yet fully implemented the "BYOD" feature referenced here:
Move your Galaxy phone to a different service carrier
If you unlock your phone to use with another carrier, it's easy to take advantage of all your new carrier's features without losing any of your data.
www.samsung.com
UPDATE: SamKEY worked!!
I was able to change the CSC to the correct carrier!
quadrun1 said:
UPDATE: SamKEY worked!!
I was able to change the CSC to the correct carrier!
Click to expand...
Click to collapse
how many credits do I need to change CSC?
On the samkey page it says that you need 8 credits
No, if I remember correctly it's only 1 credit to change the CSC.
See here:
https://www.reddit.com/r/GalaxyS21/comments/lm0at9

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