Question Problem with flash rom from another country. - Samsung Galaxy S21+

Hi how are you i'm having a problem flashing the rom, i use to have a galaxy s10e and remove the aro version of the rom, i'm from Argentina, and installed the dbt version that is from Germany because of the faster updates that in my country always come much latter. Now i'm doing exactly the same procedure with my s21+ and the flash process goes well but when i check the region of my rom stills says aro, what am i doing wrong, could the phone be region locked? I bought it from a carrier but they say the phone is unlocked, which is true because i put a sim card from other provider and work perfectly fine, my s10e i bought it directly from Samsung. Is there anything i'm missing? I understand that you can change rom a put a rom from another country but i don't know what else can i do. Hope i express myself correctly, thanks for any help you can give me and sorry if i post this in the wrong place i'm new in the forum.

pabloh888 said:
Hi how are you i'm having a problem flashing the rom, i use to have a galaxy s10e and remove the aro version of the rom, i'm from Argentina, and installed the dbt version that is from Germany because of the faster updates that in my country always come much latter. Now i'm doing exactly the same procedure with my s21+ and the flash process goes well but when i check the region of my rom stills says aro, what am i doing wrong, could the phone be region locked? I bought it from a carrier but they say the phone is unlocked, which is true because i put a sim card from other provider and work perfectly fine, my s10e i bought it directly from Samsung. Is there anything i'm missing? I understand that you can change rom a put a rom from another country but i don't know what else can i do. Hope i express myself correctly, thanks for any help you can give me and sorry if i post this in the wrong place i'm new in the forum.
Click to expand...
Click to collapse
Hi Mate
I had the same issue , on the S10 it was possible to do it as you mention , not any more , the region is locked , I finally changed but not thru flashing , i got lucky and i could use a phone dialer code to change it , there are 3 options you could try ( without root)
Check here , this option worked for me , careful it will factory reset your phone and in my case i could only use it 3 times...
Option 2 , another dialer code ( did not work for me) check here
And last option use a pay service SAMKEY

MAX 404 said:
Hi Mate
I had the same issue , on the S10 it was possible to do it as you mention , not any more , the region is locked , I finally changed but not thru flashing , i got lucky and i could use a phone dialer code to change it , there are 3 options you could try ( without root)
Check here , this option worked for me , careful it will factory reset your phone and in my case i could only use it 3 times...
Option 2 , another dialer code ( did not work for me) check here
And last option use a pay service SAMKEY
Click to expand...
Click to collapse
Many Thanks !!!!!!!!!!!!!!!!!!!
I changed my CSC to ZTO again using this method.

Snake said:
Many Thanks !!!!!!!!!!!!!!!!!!!
I changed my CSC to ZTO again using this method.
Click to expand...
Click to collapse
Great news mate
But which method?

I had to use Samkey on mine to change from carrier locked CSC to open unlocked CSC (TNL to PHN) and after that worked and I had 2 credits left I changed it again to my current carrier CSC, VDF. Worked fine.

Related

[Q] Possible to change region completely in SM-G920i?

First of all, sorry if this has been answered here, I simply can't find a definitive answer for our S6, let me explain better.
As you may know, I'm not a newbie here or in other forums, I've rooted most of my phones (Not this one) and have installed custom roms dozens of times to all of them, BUT, I'm definitely a newbie about what I need here, I'm trying to see if I can change my SM-G920i region from XSA (Australia) to any other one, India in this case. I have read tons of threads and posts and that's what is confusing me, in some threads there are people saying that they did it and is working great, in that same threads there are people saying that they did it but Knox got tripped, there are others that say that the device is soft bricked and others are saying that they have read somewhere that changing the CSC from it's original one may brake future Samsung pay.
So, this phone is paid by my office, they allow me to do what I want to it while I'm able to just put it back as it came from factory, so that means that I can root it if it doesn't trip Knox, that I can install anything while I can simply go back anytime they need me to, and obviously, Samsung pay works when it finally comes. With this in mind, can somebody answer me a couple of questions?
1-) I know it's possible to do it, but is it true that by doing this I'll have Samsung pay issues? I doubt that knox will be tripped if I do it with odin, but besides knox, is there any possibility that Samsung Pay will not work in certain regions (India in this case) and that's why some are saying that it will break it?
2-) If I download the firmware and flash it via Odin, I'm reading that it won't brick the phone is done via Odin, but in worst case scenario I assume that I can always go back to original one and it gets factory reset, am I right?
3-) If I flash it correctly as I expect an it doesn't brick, does this means that it will change PDA and CSC versions all together, that it will basically become a device from the new flashed region? So if I flash the India one to my XSA (Australia) now it will work completely as an India device and should get future OTA like the rest?
Again, sorry if this has been asked and answered but going back a lot of pages here can't give me definitive answer, thanks in advance for those of you kind enough to answer to this.
Flash a G920i ROM via odin other than your own region/country:
http://www.sammobile.com/firmwares/database/SM-G920I/
roydok said:
Flash a G920i ROM via odin other than your own region/country:
http://www.sammobile.com/firmwares/database/SM-G920I/
Click to expand...
Click to collapse
Thanks.
In another thread that I have posted (Brazilian one) I was replied to, so because of that I decided to do it, so far everything is working great as expected. Mine was an Australian baseband (XSA), only thing you I noticed is that when I connect it to Smart Switch app for PC or MAC it will still detects the Original CSC, I was curious about it and installed Phone info apk and it shows correctly the information, both PDA and CSC are now from India but it shows that the Original CSC was XSA (In my case), Firmware's CSC code is INU (India) and Active CSC code it says XSA/INU, so I'm assuming that it's showing multiple CSC.
Does somebody know if having the Active CSC showing XSA/INU causes future OTA issues?
After flashing a ROM its good practice to go to recovery mode and do a full wipe of cache and full reset to change CSC to the default of the ROM you flashed.
roydok said:
After flashing a ROM its good practice to go to recovery mode and do a full wipe of cache and full reset to change CSC to the default of the ROM you flashed.
Click to expand...
Click to collapse
Well, in that case I think I will pass for now, as I did a Full wipe cache and Full reset before the Flash but just did a Wipe cache after I flashed it.
The issue is that I basically just finish setting everything back as it was before (about 3 hours and I still haven't set my Contacts Ringtones and Accounts links) so begin again it's a PITA. Once I finish this I'll do a full nandroid backup to have everything as I want, but if I do the Wipe Data/Full Reset and then restore from the Full backup, does this put everything as it was including CSC again? I've been always confused about how deep this restore goes in the system files. Do you know about it?
Thanks.
Try restoring from your backup after the full wipe from recovery. If everything works then you should be ok. Otherwise start from scratch and reinstall everything one by one.
Will try that later today, thanks.
Goodluck.
roydok said:
Goodluck.
Click to expand...
Click to collapse
I tried that and nothing, still the same, then I decided to remove the Re-activation Lock in Find My Mobile settings, and after that and enter to recovery mode, it changed the CSC to India, so for those of you with same issues, remember about Re-activation lock.
Thanks for your help.
Did you have a SIM card inserted when you flashed your ROM with removed reactivation lock?
I had the SIM card on the phone today all the time as I forgot to bring with me the SIM removal tool and didn't have anything to open the Sim card tray, but last night I didn't have the Sim card installed when I flashed the ROM.
So today after I did the Wipe cache Partition and Data and saw that it still had the same issue, I flashed a UK ROM into a SM-G925f that had some African country ROM (have never heard of it before in my life but for the name it sounded like an African country), anyways I did that and everything went great, so that's when I thought what was different between the devices and then I remember that I had turned on the Reactivation lock in my S6 and not in the S6 Edge, so I turned it off, then went to Recovery mode and for my surprise the CSC was already changed without any other reset or anything.
erasat said:
I had the SIM card on the phone today all the time as I forgot to bring with me the SIM removal tool and didn't have anything to open the Sim card tray, but last night I didn't have the Sim card installed when I flashed the ROM.
So today after I did the Wipe cache Partition and Data and saw that it still had the same issue, I flashed a UK ROM into a SM-G925f that had some African country ROM (have never heard of it before in my life but for the name it sounded like an African country), anyways I did that and everything went great, so that's when I thought what was different between the devices and then I remember that I had turned on the Reactivation lock in my S6 and not in the S6 Edge, so I turned it off, then went to Recovery mode and for my surprise the CSC was already changed without any other reset or anything.
Click to expand...
Click to collapse
can you post a screen of CSC page of Phone ** info ** just for reference?
I see you said that CSC changed to India, but Active CSC or also Original CSC?
What I mean is that, now I have a S6 which has Original, Active CSC as MRU...I'd like to put a European fw on it since I'm based in Europe (got this Middle East / Africa phone just because Dual sim it's not available in europe) but I'm in doubt if putting an european fw will still show that CSC has changed from original one and maybe OTA updates won't work.
thanks
Changing csc!!!
I succesfully installed a G920I indian INU rom in my device which had a XSA rom but when i go to recovery it still shows as XSA ....How do i change that to INU?
Hi i am using a galaxy s6edge+ and i am really struggling with the region lock. I have tried a few options of the factory full reset changing the Apn's to the ones needed and using different sim cards.when it used to go into emergency mode "h+" now it won't connect to any internet at all. Can i possibly have any basic assistance with the rom and resetting options to change the csc when i do a hard reset the csc says it's 'multi'. what does that mean? Any region unlocking help would be appreciated so much!
Thanks guys

Unauthorized changes have been detected. Solution?

Hey guys so after trying the following software (Dr.Fone for Android by Wondershare) to recover some deleted photos off my phone i started getting some message saying: Unauthorized actions have been detected. Restart your phone to undo any unauthorized changes.
Obviously I tried to reboot countless times, tried to do a factory reset and even wipe the Cache Partition without any success. Tried to use Smart Switch too but when going to the Emergency software recovery and Device initialization I get a warning that I need at least 800Mb free. The phone has 16Gb free space . Any solution? Throught about flashing ROM but I don't know if the bootloader is locked by default on Samsung devices and if there's even a official rom.
Thanks in advance
Which model S7?
You can use ODIN 3.12.3 or above to flash a stock ROM from sammobile.com or updato.com
Possible if you check the phone about > status in settings it will say 'Custom', flashing a stock ROM should get you back to 'Official' and remove the error
Regular S7 ( SM-G930F). I'll look into it right now Thanks
Edit : There are so many country ones but there's none for my country. Does it make such a difference? I bought my phone from Germany and use it on a daily basis in Finland. I never heard about a ROM that only works with a specific operator. Besides mine wouldn't even work here.
soarespt said:
Regular S7 ( SM-G930F). I'll look into it right now Thanks
Edit : There are so many country ones but there's none for my country. Does it make such a difference? I bought my phone from Germany and use it on a daily basis in Finland. I never heard about a ROM that only works with a specific operator. Besides mine wouldn't even work here.
Click to expand...
Click to collapse
BTU and XEU are United Kingdom unbranded ROMs, could try one of those
The only things I've heard not working by installing different region ROMs (CSC) is stuff like WiFi Calling / VoLTE etc, haven't heard of anyone not being able to get a signal at all
Check which one you're running now, you're looking at the CSC version
Use this app
https://play.google.com/store/apps/details?id=org.vndnguyen.phoneinfo&hl=en_GB
Check under "CSC Code" tab to see what you're running, then match it to the ROM you download
*Detection* said:
BTU and XEU are United Kingdom unbranded ROMs, could try one of those
The only things I've heard not working by installing different region ROMs (CSC) is stuff like WiFi Calling / VoLTE etc, haven't heard of anyone not being able to get a signal at all
Check which one you're running now, you're looking at the CSC version
Use this app
https://play.google.com/store/apps/details?id=org.vndnguyen.phoneinfo&hl=en_GB
Check under "CSC Code" tab to see what you're running, then match it to the ROM you download
Click to expand...
Click to collapse
Issue fixed! Thank you very much
soarespt said:
Issue fixed! Thank you very much
Click to expand...
Click to collapse
Great :good:
*Detection* said:
Great :good:
Click to expand...
Click to collapse
How did you fix it?

Samsung S8+ CSC change on Exynos F model

Hello,
I have been trying to find an answer to my question or a solution but all the results I found on XDA are Snapdragon model oriented.
My question is about changing the CSC just to be able to receive OTA updates faster ( I don't want Samsung Pay ..) . I aleady know that the product code is hardcoded into the phone I just need to change last three letters of the CSC.
My rom is part of the OXM multi-CSC rom, I flashed it and tried the famous code to change the CSC region but no results so far. I also do not have any other sim card to trick the phone after factory reset.
Could anyone please help ? has anyone been able to change CSC via odin ?
Regards.
Can anyone help please ? is my question a little bit confusing ?
AyoubK said:
Hello,
I have been trying to find an answer to my question or a solution but all the results I found on XDA are Snapdragon model oriented.
My question is about changing the CSC just to be able to receive OTA updates faster ( I don't want Samsung Pay ..) . I aleady know that the product code is hardcoded into the phone I just need to change last three letters of the CSC.
My rom is part of the OXM multi-CSC rom, I flashed it and tried the famous code to change the CSC region but no results so far. I also do not have any other sim card to trick the phone after factory reset.
Could anyone please help ? has anyone been able to change CSC via odin ?
Regards.
Click to expand...
Click to collapse
Changing CSCs isn't possible without root or without a local SIM card from the country whose CSC you want to use.
If you're so eager to get faster updates, just flash them with HOME_CSC_OXM as they are released, you won't lose your data and you'll be on the latest OXM builds as well.
murtaza02 said:
Changing CSCs isn't possible without root or without a local SIM card from the country whose CSC you want to use.
If you're so eager to get faster updates, just flash them with HOME_CSC_OXM as they are released, you won't lose your data and you'll be on the latest OXM builds as well.
Click to expand...
Click to collapse
Thank you for the answer

CSC Changing Help

I have the G955FD on the BRI (Taiwan) firmware. I live in Australia, and really want to use Samsung pay. How should I change my CSC from BRI to XSA? I've seen varying information here and on other sites. I want to keep my Google Play as Certified, still have OTAs and without tripping KNOX. Essentially like a standard phone from this region. I don't particularly care about Dual-SIM, but it'd be nice to still have.
Here is my current software information: imgur(dot)com/a/197z5 <-- I can't post links yet, remove this if not allowed.
Thanks for helping
jAyKEbAb said:
I have the G955FD on the BRI (Taiwan) firmware. I live in Australia, and really want to use Samsung pay. How should I change my CSC from BRI to XSA? I've seen varying information here and on other sites. I want to keep my Google Play as Certified, still have OTAs and without tripping KNOX. Essentially like a standard phone from this region. I don't particularly care about Dual-SIM, but it'd be nice to still have.
Here is my current software information: imgur(dot)com/a/197z5 <-- I can't post links yet, remove this if not allowed.
Thanks for helping
Click to expand...
Click to collapse
Hi mate
Without root there are not many options ..
First F and FD firmwares are compatibles ( same device!! exynos to exynos) , you can flash an F firmware into an FD or vice versa
you could try to change your CSC to your SIM card CSC first
Check here
On the thread it shows how to add your SIM CSC to your current CSC config , if it work you may end up with a configuration like BRI/BRI/XSA , in my case I got TPA/TPA/PCW , TPA was the software default and PCW sims CSC. I do not have Samsung pay so i do not know if that change will be enough to make it work. Back up you need to factory reset for this.
The other option is to flash a full XSA firmware ( use a G955F firmware) , read here how to do it
BACK UP before you do anything
MAX 404 said:
Hi mate
Without root there are not many options ..
First F and FD firmwares are compatibles ( same device!! exynos to exynos) , you can flash an F firmware into an FD or vice versa
you could try to change your CSC to your SIM card CSC first
Check here
On the thread it shows how to add your SIM CSC to your current CSC config , if it work you may end up with a configuration like BRI/BRI/XSA , in my case I got TPA/TPA/PCW , TPA was the software default and PCW sims CSC. I do not have Samsung pay so i do not know if that change will be enough to make it work. Back up you need to factory reset for this.
The other option is to flash a full XSA firmware ( use a G955F firmware) , read here how to do it
BACK UP before you do anything
Click to expand...
Click to collapse
Thank you very much! I'm now running XSA/XSA/XSA with a flash. Dual-SIM support is still there which surprised me. There were some issues with Odin, but I fixed them up after a while.
jAyKEbAb said:
Thank you very much! I'm now running XSA/XSA/XSA with a flash. Dual-SIM support is still there which surprised me. There were some issues with Odin, but I fixed them up after a while.
Click to expand...
Click to collapse
Great news mate!!
Firmware is 100% same for F and FD so you should not see any difference at all , I asume also you got Samsung Pay working.
Good job!
I did the same when I had s8+. flashed TEL (Telstra) SM-G955F firmware which I got off Sammobile and worked like a treat. Samsung pay, VoLTE, Wifi Calling, Spam detection in calls worked as well.
I upgraded to S9+ and tried to do the same. The flash process works fine but CSC doesn't change. I am stuck on AFG CSC. Apparently it cant be done on S9 as Samsung is imposing multi CSC format.
Well, you are lucky one to have S8+. Enjoy
maximus81 said:
I did the same when I had s8+. flashed TEL (Telstra) SM-G955F firmware which I got off Sammobile and worked like a treat. Samsung pay, VoLTE, Wifi Calling, Spam detection in calls worked as well.
I upgraded to S9+ and tried to do the same. The flash process works fine but CSC doesn't change. I am stuck on AFG CSC. Apparently it cant be done on S9 as Samsung is imposing multi CSC format.
Well, you are lucky one to have S8+. Enjoy
Click to expand...
Click to collapse
That's unfortunate
I'm curious why you flashed TEL instead of XSA, XSA is the unlocked version and it still has WiFi calling, VoLTE etc. I have an ALDImobile SIM (which uses Telstra) but I installed the unlocked version to have minimal bloatware and the stock boot logo.
jAyKEbAb said:
That's unfortunate
I'm curious why you flashed TEL instead of XSA, XSA is the unlocked version and it still has WiFi calling, VoLTE etc. I have an ALDImobile SIM (which uses Telstra) but I installed the unlocked version to have minimal bloatware and the stock boot logo.
Click to expand...
Click to collapse
I tried both. First preference is always XSA but I tried TEL in anticipation that it may work
Sent from my SM-G965F using Tapatalk

Since CSC change is not possible with latest UI 3.1 update what are options to change CSC

HI all,
With CSC change not possible using codes with latest UI 3.1 update what are options to change CSC?
For ex. I have SM-N986U unlocked Tmobile device but i changed CSC to ATT as im currently using ATT Prepaid and I'm on latest Apr update for ATT
How can i revert back to Tmobile CSC?
Do i need to flash Tmobile firmware using ODIN by first flashing to U1 firmware then Tmobile firmware or can i directly flash Tmobile latest firmware with Apr update using ODIN?
Will i be able to retain my app and data if I flash Tmobile firmware?
Any help will be appreciated.
Thanks
So you state csc change not possible then ask how to change it? lol.. and if it were as easy to just flash firmware in odin tgen that wouldve been the way to do it to begin with I would think lol
Update:
I was able to change CSC(ATT/ATT/TMB) to TMB/TMB/TMB but it was long and winded way. Just flashing firmware was not enough , need Tmobile sim to install carrier service and change CSC.
I followed the steps below:-
1) Did backup of my device using Smart Switch and removed my ATT sim.
2) Flashed latest T-Mobile firmware( N986USQU2DUC8 ) using instructions from post - https://forum.xda-developers.com/t/ota-and-non-ota-firmware-for-n986u-and-n986u1.4143833/ . Also, downloaded the ODIN (patched version) and T-Mobile firmware from links in the post. Flashed HOME_CSC too.
3) After rebooting phone with new firmware , the boot up screen was still ATT and CSC was still ATT/ATT/TMB.
4)Shut down phone and inserted Tmobile SIM i had lying around.
5) On reboot, i was asked to install Tmobile carrier services and on restart , Tmobile logo came on boot up with CSC changed to TMB/TMB/TMB.
6) Now, i have esim enabled and SIM manager showing up too.
mindseye0803 said:
Update:
I was able to change CSC(ATT/ATT/TMB) to TMB/TMB/TMB but it was long and winded way. Just flashing firmware was not enough , need Tmobile sim to install carrier service and change CSC.
I followed the steps below:-
1) Did backup of my device using Smart Switch and removed my ATT sim.
2) Flashed latest T-Mobile firmware( N986USQU2DUC8 ) using instructions from post - https://forum.xda-developers.com/t/ota-and-non-ota-firmware-for-n986u-and-n986u1.4143833/ . Also, downloaded the ODIN (patched version) and T-Mobile firmware from links in the post. Flashed HOME_CSC too.
3) After rebooting phone with new firmware , the boot up screen was still ATT and CSC was still ATT/ATT/TMB.
4)Shut down phone and inserted Tmobile SIM i had lying around.
5) On reboot, i was asked to install Tmobile carrier services and on restart , Tmobile logo came on boot up with CSC changed to TMB/TMB/TMB.
6) Now, i have esim enabled and SIM manager showing up too.
Click to expand...
Click to collapse
thats the normal process.. that firmware is same for each carrier.. firmware is multi csc which changes based on sim inserted.. shouldnt have to go through all of that really.. i think most ppl who have issues are trying to change csc without a active sim card or on carrier locked devices etc.
glad u figured it out tho!
elliwigy said:
thats the normal process.. that firmware is same for each carrier.. firmware is multi csc which changes based on sim inserted.. shouldnt have to go through all of that really.. i think most ppl who have issues are trying to change csc without a active sim card or on carrier locked devices etc.
glad u figured it out tho!
Click to expand...
Click to collapse
Well, the confusion for most ppl who are new to Samsung and CSC, like me , is that we could change CSC with code earlier and now cannot. Didn't have these issues with pixel and iPhone.
mindseye0803 said:
Well, the confusion for most ppl who are new to Samsung and CSC, like me , is that we could change CSC with code earlier and now cannot. Didn't have these issues with pixel and iPhone.
Click to expand...
Click to collapse
pixel and iphone dont have multi csc like samsung does.. just curious, when were u able to change csc with code earlier if ur new to samsung? lol
elliwigy said:
pixel and iphone dont have multi csc like samsung does.. just curious, when were u able to change csc with code earlier if ur new to samsung? lol
Click to expand...
Click to collapse
Yes, I was able to change CSC to ATT from TMobile, enable all LTE/5G bands before One UI update.Not, sure what u find so funny .
Yes, I'm aware that there is no CSC concept in pixel or iPhone or any other other manufacturer that I'm aware nor they are crippled in terms of hardware capability from carrier software like Samsung. LTE/5G bands not being enabled , esim not being enabled etc.
mindseye0803 said:
Yes, I was able to change CSC to ATT from TMobile, enable all LTE/5G bands before One UI update.Not, sure what u find so funny .
Yes, I'm aware that there is no CSC concept in pixel or iPhone or any other other manufacturer that I'm aware nor they are crippled in terms of hardware capability from carrier software like Samsung. LTE/5G bands not being enabled , esim not being enabled etc.
Click to expand...
Click to collapse
actually other devices are crippled in some cased disabled entirely.. for example u cant get a tmb oneplus 9 pro 5g and use it on verizon to get 5g bcuz vzw 5g bands are disabled in tmb variant..
its really the carriers to be honest..
and I say LOL all the time even in normal convo so not actually laughing sometimes, just say it out of habit
elliwigy said:
actually other devices are crippled in some cased disabled entirely.. for example u cant get a tmb oneplus 9 pro 5g and use it on verizon to get 5g bcuz vzw 5g bands are disabled in tmb variant..
its really the carriers to be honest..
and I say LOL all the time even in normal convo so not actually laughing sometimes, just say it out of habit
Click to expand...
Click to collapse
I have phones such as Z Flip3 5G and other models that do not change CSC like older models when following the flash procedure starting with U1, but the phones never prompt a restart. I have noticed it seems to be with TMB or VZW units. Any suggestion on how to actually get the CSC to change properly or is this something they are doing with new phones to avoid being able to use them fully on other carriers?
yygemmi770 said:
I have phones such as Z Flip3 5G and other models that do not change CSC like older models when following the flash procedure starting with U1, but the phones never prompt a restart. I have noticed it seems to be with TMB or VZW units. Any suggestion on how to actually get the CSC to change properly or is this something they are doing with new phones to avoid being able to use them fully on other carriers?
Click to expand...
Click to collapse
SamKey.org
Go to the page, download theirs Samkey app, buy few credits on Ebay and you can change the CSC as you wish in a minute, the phone will reboot without loosing your data, it's the easiest way as far as I know
Hi, I have yhe following issue and I need your thoughts please.
I have a Telus plan, canadian with US roaming option.
I am traveling in US alot. I have a Note 20 Ultra U1 from Samsung USA. When in US I can only register on Tmobile and I can get 5G icon too. Won't let me on ATT or Verizon.
With same sim card in Note20 Ultra "W" variant, canadian one, it wil register on all 3 major networks in US. No issues with the sim, I guess.
Also in Canada won't get 5G ever.
My provider said nothing to do with them, Samsung told me the same.
I reseted all network setings my APN is ok. VOLTE on. Only getting acces to Tmobile.
Any ideea how I can fix this ? Is it related to CSC ? Mine is XAA.
mindseye0803 said:
Update:
I was able to change CSC(ATT/ATT/TMB) to TMB/TMB/TMB but it was long and winded way. Just flashing firmware was not enough , need Tmobile sim to install carrier service and change CSC.
I followed the steps below:-
1) Did backup of my device using Smart Switch and removed my ATT sim.
2) Flashed latest T-Mobile firmware( N986USQU2DUC8 ) using instructions from post - https://forum.xda-developers.com/t/ota-and-non-ota-firmware-for-n986u-and-n986u1.4143833/ . Also, downloaded the ODIN (patched version) and T-Mobile firmware from links in the post. Flashed HOME_CSC too.
3) After rebooting phone with new firmware , the boot up screen was still ATT and CSC was still ATT/ATT/TMB.
4)Shut down phone and inserted Tmobile SIM i had lying around.
5) On reboot, i was asked to install Tmobile carrier services and on restart , Tmobile logo came on boot up with CSC changed to TMB/TMB/TMB.
6) Now, i have esim enabled and SIM manager showing up too.
Click to expand...
Click to collapse
So I have a Verizon phone and I switched to t-mobile. If I use this method to switch my csc would that lock my phone or would it stay unlocked?
Stevieboy02008 said:
So I have a Verizon phone and I switched to t-mobile. If I use this method to switch my csc would that lock my phone or would it stay unlocked?
Click to expand...
Click to collapse
Unlocked. Phone once unlocked will not lock to any carrier.
dadmi said:
Unlocked. Phone once unlocked will not lock to any carrier.
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Thank you

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