Help for Bad IMEI - T-Mobile Samsung Galaxy S7 Questions & Answers

I bought an S7 recently with an IMEI blocked by T-Mobile.
Update: I have, successfully, flashed to G930U. This was done through Odin following this thread: https://forum.xda-developers.com/tm...g930u-firmware-to-t-mobile-s7-t3533918/page1
Good news is that when I insert a different SIM card I now get access to a prompt asking for an unlock code. Maybe I can unlock it for Verizon, Sprint, etc?
Bad news is that I currently am on MintSIM which use T-Mobile networks. So it cannot be activated.
More information: I did ring up multiple times to T-Mobile and managed to get a difinitive answer that "Yes" it is still being financed, and therefore only the account holder can activate it.
I think my best option is to sell it making the bad IMEI number clear. Or to purchase a broken S7 in hopes of replacing the IMEI number physically.
Previously:
I want to switch firmware so I can unlock the IMEI without going through T-Mobile. Would it be possible to use Odin to flash Sprint firmware or Deoxed firmware?
I rooted the S7 and tried to install the Deoxed firmware through FlashFire but the S7 interrupted and restored it to default firmware. Which app files do I need to disable to stop this happening?

Jack Hammered said:
I bought an S7 recently with an IMEI blocked by T-Mobile.
I want to switch firmware so I can unlock the IMEI without going through T-Mobile. Would it be possible to use Odin to flash Sprint firmware or Deoxed firmware?
I rooted the S7 and tried to install the Deoxed firmware through FlashFire but the S7 interrupted and restored it to default firmware. Which app files do I need to disable to stop this happening?
Click to expand...
Click to collapse
There is a guy that can change or unlook your IMEI, look in the forum you can find him. Change the rom or firmware does not change your IMEI.
hope it can help

pippone121263 said:
There is a guy that can change or unlook your IMEI, look in the forum you can find him. Change the rom or firmware does not change your IMEI.
hope it can help
Click to expand...
Click to collapse
I have changed the IMEI number to an old phone of mine. Which is legal AFAIK, but it still isn't letting the phone be unlocked by T-Mobile.

Jack Hammered said:
I have changed the IMEI number to an old phone of mine. Which is legal AFAIK, but it still isn't letting the phone be unlocked by T-Mobile.
Click to expand...
Click to collapse
Check my signature

Related

[SM-G920R7] S6 Thread

My goal would be to install Cyanogenmod on my SM-G920R7, but haven't been able to find too much help. Any of the rooting methods that seem to work on rest of the S6 variants, doesn't seem to work on this one. There is no TWRP available that I know of.
I would really appreciate any possible help. Thanks in advance.
i have the same problem
I think that this version of the s6 (the cspire version) isn't widely available enough and no one has bothered to make a root for it - ive been searching for a long time and still haven't found anything
I'd like to at least be able to root this thing.. On 5.1.1 now.
I have a rooted cellphone of this version (I purchased it rooted), is there any workaround to unlock GSM/LTE bands on this device?
----
Edit... Okay, so I went back to fresh stock with SmartSwitch, then flashed twrp-3.0.0-0-zerofltespr and Unikernel-v9b-BOH1-920P-100815 via odin 3.10.7, and rooted again... any method to enable gsm on this device yet?
jfarreola said:
I have a rooted cellphone of this version (I purchased it rooted), is there any workaround to unlock GSM/LTE bands on this device?
----
Edit... Okay, so I went back to fresh stock with SmartSwitch, then flashed twrp-3.0.0-0-zerofltespr and Unikernel-v9b-BOH1-920P-100815 via odin 3.10.7, and rooted again... any method to enable gsm on this device yet?
Click to expand...
Click to collapse
How exactly did you root it again? Was it SM-G920R7?
phreak311 said:
How exactly did you root it again? Was it SM-G920R7?
Click to expand...
Click to collapse
Yes, it was SM-G920R7... first, I flashed twrp-3.0.0-0-zerofltespr , then Unikernel-v9b-BOH1-920P-100815 , both via ODIN (you can google both files), note these files are NOT for r7 version (they're for sprint version *g920p*) but they'll root the phone.
I ended up getting rid of the phone as there's afaik no way to enable gsm on it
jfarreola said:
Yes, it was SM-G920R7... first, I flashed twrp-3.0.0-0-zerofltespr , then Unikernel-v9b-BOH1-920P-100815 , both via ODIN (you can google both files), note these files are NOT for r7 version (they're for sprint version *g920p*) but they'll root the phone.
I ended up getting rid of the phone as there's afaik no way to enable gsm on it
Click to expand...
Click to collapse
That's not true. I finally rooted that model and got TWRP installed, and followed the steps to get the Sprint Galaxy S4 domestic SIM unlocked. I finally got data and texting working last night, but I can't get calls to work for some reason on an AT&T SIM card. It even shows up at AT&T as my provider. AFIK it is now SIM unlocked, the only thing not working is calls like I said. I'm sooooo close to getting this working. I need people with this phone that are doing the same thing i'm doing! I only paid $50 for it! lol
Can u help me get mine unlocked , ive already rooted the phone.
shykidd said:
Can u help me get mine unlocked , ive already rooted the phone.
Click to expand...
Click to collapse
How did you root the phone thanks for any help
phreak311 said:
That's not true. I finally rooted that model and got TWRP installed, and followed the steps to get the Sprint Galaxy S4 domestic SIM unlocked. I finally got data and texting working last night, but I can't get calls to work for some reason on an AT&T SIM card. It even shows up at AT&T as my provider. AFIK it is now SIM unlocked, the only thing not working is calls like I said. I'm sooooo close to getting this working. I need people with this phone that are doing the same thing i'm doing! I only paid $50 for it! lol
Click to expand...
Click to collapse
What model did you use and what recovery to root phone
makemesmile said:
What model did you use and what recovery to root phone
Click to expand...
Click to collapse
use root for sprint or us cellular
DEXEIL said:
use root for sprint or us cellular
Click to expand...
Click to collapse
What model will work with my phone I have my backup for if something goes wrong but if I charge the recovery and have some type of issue can I use the stock rom again thanks for your help I had a gs3 rooted and really like it now I got the sm-920r7 what model with sprint or us cellular will work
Root sm-g920r7
lazydude said:
my goal would be to install cyanogenmod on my sm-g920r7, but haven't been able to find too much help. Any of the rooting methods that seem to work on rest of the s6 variants, doesn't seem to work on this one. There is no twrp available that i know of.
I would really appreciate any possible help. Thanks in advance.
Click to expand...
Click to collapse
use the cf auto root download this use google to search first one that comes up use that link go to model sm-g920p cspire and sprint uses
the same network . Use odin to install i have same phone and have mine rooted in this way. So far tried using the sprint version custom rom it will work but you can make phone calls but not the data side for phone internet.
---------- Post added at 04:09 PM ---------- Previous post was at 03:57 PM ----------
makemesmile said:
how did you root the phone thanks for any help
Click to expand...
Click to collapse
use the cf auto root download this use google to search first one that comes up use that link go to model sm-g920p cspire and sprint uses
the same network . Use odin to install i have same phone and have mine rooted in this way. So far tried using the sprint version custom rom it will work but you can make phone calls but not the data side for phone internet. Make sure you go to phone settings under find my phone and turn off reactivation lock
Any way to get the G920P roms to work on this variant? I've had luck with them with other c-spire/ntelos/r7 phones in the past. I'd like to flash Renegade to it...
blazie151 said:
Any way to get the G920P roms to work on this variant? I've had luck with them with other c-spire/ntelos/r7 phones in the past. I'd like to flash Renegade to it...
Click to expand...
Click to collapse
It works but the phone data Internet won't work can make phone calls and sprints annoying activation keeps posing up and even tried the pit file for cspire no change on that
Sent from my SM-G920R7 using Tapatalk
Wonder if anyone has got calls working using GSM sim card? I have the cspire G920R7 rooted with LTE data working using AT&T sim.
Won't receive calls (straight to vmail) and when placing calls dialer says CALL ENDED immediatly after dialing.
hmmm.
TEC602 said:
Wonder if anyone has got calls working using GSM sim card? I have the cspire G920R7 rooted with LTE data working using AT&T sim.
Won't receive calls (straight to vmail) and when placing calls dialer says CALL ENDED immediatly after dialing.
hmmm.
Click to expand...
Click to collapse
I'm working on this too. So far I've got the same situation as you, Data works but no calls/text.
in a few weeks the person who wants me to unlock this phone for them is switching carriers and plans on buying a new phone to use until I can unlock the S6, so I'll have more time to mess with it then.
There's a few things I want to try, but I can't post links here (XDA rules).
One involves Rooting and using a service code to unlock the bands (google "TeamUSCellular GSM unlock S6")
The other also requires rooting and involves using "galaxy tools" to unlock the bands (not sure if this app works with marshmallow, though) (google "theandroidsoul how to sim unlock sprint galaxy S6")
My hopes are not high for getting this phone to work fully. I've also been trying to get custom ROMs to work, but I can't get the cell radio to work at all on custom ROMs. Even with the stock SM-G920R7 Kernel straight from the latest update .tar
Sean89us said:
I'm working on this too. So far I've got the same situation as you, Data works but no calls/text.
.......
Click to expand...
Click to collapse
Thanks for the suggestion, yeah I have tried galaxy tools (GT) to change the phone mode to LTE/GSM auto and tried different CSC values, and accessed the hidden menus through there. The sim unlock in GT asks for a code which I dont know, but the phone doesn't seem to be locked anyway since it doesn't care when I try different sim cards. Weird thing is the GT app doesn't work very well (most hidden menus not working) on the current rom i'm using but worked better on the stock cspire rom. Note, I tried using MSL 000000 in ##3282# data menu and it works but most the settings in there don't seem to be applicable to GSM networks.
Currently I'VE been messing with the build.prop file, also tried the CDMA to GSM flashable zip which edits the build.prop but nothing has gotten better. One time after editing the build.prop the phone would only turn on with a blank screen and vibrate every few seconds, that was SCARY. Also was planning on flashing other radio/modem but having trouble finding many of those files and pulling them from roms seems difficult to get the correct file to flash on odin.
TEC602 said:
Thanks for the suggestion, yeah I have tried galaxy tools (GT) to change the phone mode to LTE/GSM auto and tried different CSC values, and accessed the hidden menus through there. The sim unlock in GT asks for a code which I dont know, but the phone doesn't seem to be locked anyway since it doesn't care when I try different sim cards. Weird thing is the GT app doesn't work very well (most hidden menus not working) on the current rom i'm using but worked better on the stock cspire rom. Note, I tried using MSL 000000 in ##3282# data menu and it works but most the settings in there don't seem to be applicable to GSM networks.
Currently I'VE been messing with the build.prop file, also tried the CDMA to GSM flashable zip which edits the build.prop but nothing has gotten better. One time after editing the build.prop the phone would only turn on with a blank screen and vibrate every few seconds, that was SCARY. Also was planning on flashing other radio/modem but having trouble finding many of those files and pulling them from roms seems difficult to get the correct file to flash on odin.
Click to expand...
Click to collapse
I'm not sure you'll even be able to flash other models' modem..? I can't say I've ever tried.
Anyway, getting your hands on the firmware is easy. Just use SamFirm (http://forum.xda-developers.com/galaxy-tab-s/general/tool-samfirm-samsung-firmware-t2988647)
To use it, just input the model number (SM-G920R7/R4/P/V/T/A) and the region code, then select "auto".
Region codes and model numbers:
C-Spire: ACG (SM-G920R7)
US-Cellular: USC (SM-G920R4)
Sprint: SPR (SM-G920P)
Verizon: VZW (Locked out from download, app can't download) (SM-G920V)
T-mobile: TMB (SM-G920T)
ATT: ATT (Locked out from download, app can't download) (SM-G920A)
This app downloads firmwares directly from Samsung servers, so the download is really fast and guaranteed to be perfect/stock.
**the SM-G920R7 is closest related to the SM-G920R4 (US Cellular) & SM-G920P (Sprint). The US Cellular one recently supports GSM Bands natively without any rooting/messing with hidden settings, so that's where i'd start. You may not even need the baseband/modem, just flash the rom? I'm not sure. Good luck dude It'd be awesome if you get it working
*** Also, make sure you have a backup of your EFS before messing with the modem. Apparently if you flash an incompatible modem you can erase/corrupt the EFS partition and lose your IMEI. Hell, make a FULL backup with TWRP, and make sure that backup is copied over to your computer before doing any flashing. You can't be too careful with this.
Haven't had any luck flashing stock firmware or modems from other models using Odin, errors with a security message or something, tried G920A and G920R4. Probably for the best I suppose. Flashing custom roms has not been a problem, even if the don't work properly. Wonder if there is a test mode or way to use logcat to see why calls don't proceed like normal. Never worked on going CDMA to GSM before, I always did CDMA to CDMA in the past.

[FIRMWARE] G950U1 Unlocked AT&T QK2

As of this writing (11/29/2017) this is the latest firmware for the G950U1 att unlocked S8 . I'm leaving this here for reference so people can return to it if/when they need it.
Download, extract, remove .md5 file name off the end of each file, flash.
G950U1UEU2AQK2 (This WILL update your bootloader so after this, no going to QH3 or before. Not that you'd have a reason to)
https://drive.google.com/open?id=1gvQ0kaZTwbEYe2jvuIa05pCvwkS4ddtg
joe3681 said:
As of this writing (11/29/2017) this is the latest firmware for the G950U1 att unlocked S8 . I'm leaving this here for reference so people can return to it if/when they need it.
Download, extract, remove .md5 file name off the end of each file, flash.
G950U1UEU2AQK2 (This WILL update your bootloader so after this, no going to QH3 or before. Not that you'd have a reason to)
https://drive.google.com/open?id=1gvQ0kaZTwbEYe2jvuIa05pCvwkS4ddtg
Click to expand...
Click to collapse
you donnt need to remove the .md5
you will need modded odin though.
mweinbach said:
you donnt need to remove the .md5
you will need modded odin though.
Click to expand...
Click to collapse
You don't need to no, but it speeds up the process. I'm just posting firmware not making a hand holding tutorial. There's enough of those around
Thanks Joe I was tired of returning all the way back to the beginning and getting all those new updates on my unlocked S8
joe3681 said:
You don't need to no, but it speeds up the process. I'm just posting firmware not making a hand holding tutorial. There's enough of those around
Click to expand...
Click to collapse
Yeah and on a Mac you do need to, or it freezes Odin completely
If I flash unbranded FW on a carrier specific device, loke tmo or att for example, would it sim unlock the phone?
If I flash tmo FW on an att s8 would it in turn allow me to use the att original device on tmo? I ask these questions because I feel like it would work for both my questions since flashing the FW flashes both boot, kernel and baseband/radio. The which is needed for signal. Just some theories but would love to know the answers.
Btw, I have a F model S8+ and was planning on buying some US branded devices so I was curious.
this.guy.lol said:
If I flash unbranded FW on a carrier specific device, loke tmo or att for example, would it sim unlock the phone?
If I flash tmo FW on an att s8 would it in turn allow me to use the att original device on tmo? I ask these questions because I feel like it would work for both my questions since flashing the FW flashes both boot, kernel and baseband/radio. The which is needed for signal. Just some theories but would love to know the answers.
Btw, I have a F model S8+ and was planning on buying some US branded devices so I was curious.
Click to expand...
Click to collapse
No, it will not unlock the phone (Note: Verizon phones are factory unlocked and remain that way after a firmware flash)
Yes, you can flash any carriers FW to a US S8 and use it with a different carrier.
So I understand, your saying if I flash att FW to a T-Mobile s8 I can use it on tmobile? If that is the case, to me that's an unlock of sorts tiny book lol. Just wanna make sure is all
Deleted
this.guy.lol said:
So I understand, your saying if I flash att FW to a T-Mobile s8 I can use it on tmobile? If that is the case, to me that's an unlock of sorts tiny book lol. Just wanna make sure is all
Click to expand...
Click to collapse
You can flash att firmware and use it on TMobile but it will still be locked to TMobile. Just running att firmware.
joe3681 said:
You can flash att firmware and use it on TMobile but it will still be locked to TMobile. Just running att firmware.
Click to expand...
Click to collapse
Just realized the typo.....what I meant was, if I flash ATT on a TMO variant I can use ATT while locked to tmo? I'm very unfimiar with combination fw and always opted for the UK models for alot of reasons. Sorry for the confusion of my op question. I know on the s7 and edge if you flashed the US unlocked firmware it not only removed AOL bloat but it unlocked the device. So that is why I ask.
this.guy.lol said:
Just realized the typo.....what I meant was, if I flash ATT on a TMO variant I can use ATT while locked to tmo? I'm very unfimiar with combination fw and always opted for the UK models for alot of reasons. Sorry for the confusion of my op question. I know on the s7 and edge if you flashed the US unlocked firmware it not only removed AOL bloat but it unlocked the device. So that is why I ask.
Click to expand...
Click to collapse
I had a TMobile S7 edge and flashing unlocked firmware never unlocked the device. That's handled by TMobile servers so...
Flashing unlocked firmware will give you just that. The smoother, bloat free firmware from another device but not the actual sim unlock.
I bought an unlocked device and wanted wifi calling so I flashed the g950usqs1aqf7 att firmware with Odin and it worked to enable wifi calling but I'm unable to get any ota updates and I hate the bloat. Is it possible to get WiFi calling with an unlocked firmware like this one? Also what is the difference between the U and U1 firmware variants?
maquino1985 said:
I bought an unlocked device and wanted wifi calling so I flashed the g950usqs1aqf7 att firmware with Odin and it worked to enable wifi calling but I'm unable to get any ota updates and I hate the bloat. Is it possible to get WiFi calling with an unlocked firmware like this one? Also what is the difference between the U and U1 firmware variants?
Click to expand...
Click to collapse
There are plenty of threads on this, but I don't think anyone was ever successful. I flashed att Oreo to my u1 and got the options, but can't get my company to change my imei back.... My personal phone sim works fine. Quit at that point since it's an Ims registration error. You can try merging the wifi calling apks, but I'm pretty sure it's baked pretty deep in the os. The Verizon guys got some of it working. You can try their threads and see if any of it applies to us.
twizt3d said:
There are plenty of threads on this, but I don't think anyone was ever successful. I flashed att Oreo to my u1 and got the options, but can't get my company to change my imei back.... My personal phone sim works fine. Quit at that point since it's an Ims registration error. You can try merging the wifi calling apks, but I'm pretty sure it's baked pretty deep in the os. The Verizon guys got some of it working. You can try their threads and see if any of it applies to us.
Click to expand...
Click to collapse
Thanks. Some threads made it sound possible but inconclusive. I'll just assume it doesn't work.
BTW, can you link to the att oreo fw? And what do u flash that with Odin or comsey?
The thread right below this one entitled Oreo ota has all the details and it needs to be side loaded through adb. Not Odin. But you will need to Odin the 950u base to get off u1
twizt3d said:
The thread right below this one entitled Oreo ota has all the details and it needs to be side loaded through adb. Not Odin. But you will need to Odin the 950u base to get off u1
Click to expand...
Click to collapse
Ok thanks. I need to flash anyways because I'm having terrible battery issues and just debating whether to go to a newer version of 950u or back to U1 and losing WiFi calling. In your opinion is oreo beta worth it
So just to confirm, I have read everything, but I am just a bit confused. If I flashed the unlocked firmware via modified odin on a locked AT&T S8 it will remove a lot of the carrier bloat and give my my wifi hotspot back, but remove wifi calling. Similar to when I flashed the T-Mobile firmware on my AT&T S7 and got rid of a ton of the AT&T bloatware but was able to activate my wifi hotspot but lost wifi calling. I stay locked to AT&T which is fine that is not my purpose for flashing
---------- Post added at 07:03 AM ---------- Previous post was at 07:01 AM ----------
and can you re-upload the link is dead now
The links don't work. Any chance you've still got the firmware? I've been overseas since october. I have an unlocked AT&T phone that I intend to keep using when I get back, so I want to keep it AT&T FW.
Hi.
I have a G955U Galaxy S8+ AT&T Factory Unlocked on Android 7.0
Baseband Version: G955USQU1AQD9
Android Security Patch Level - April 1, 2017
I no longer live in the US, and currently in the Philippines. Phone works great and the signal is too and all, but I cannot get OTA updates.
Can I just download the firmware file in this thread and flash straight through ODIN, or do I need to follow another guide?

[Fixed] My SM-G955U Has No IMEI or Baseband

EDIT:
I was able to fix it! I had to install a custom ROM to obtain root and delete my EFS partition.
So, here is a bit of a story I will try to keep short.
I went to Vietnam and bought a S8+ from there.
It was a US S8+ from Sprint.
I used it fine there but when I came back to states I tried to put my Verizon sim in and it doesn't work.
I don't get any signal. But I am able to see Baseband and IMEI.
So, I tried to use Odin and flash one of the SM-G955U1 Firmware.
Now, my phone is weird and out with no Baseband or IMEI.
So I try to flash back to firmware it was on.
Same thing.
Any ideas why my S8+ is like this?
MLIGN said:
So, here is a bit of a story I will try to keep short.
I went to Vietnam and bought a S8+ from there.
It was a US S8+ from Sprint.
I used it fine there but when I came back to states I tried to put my Verizon sim in and it doesn't work.
I don't get any signal. But I am able to see Baseband and IMEI.
So, I tried to use Odin and flash one of the SM-G955U1 Firmware.
Now, my phone is weird and out with no Baseband or IMEI.
So I try to flash back to firmware it was on.
Same thing.
Any ideas why my S8+ is like this?
Click to expand...
Click to collapse
Can you get into recovery/download mode now? What was the last known version of software you know that was on your phone?
If you can get into recovery, what info are in those details?
JeffDC said:
Can you get into recovery/download mode now? What was the last known version of software you know that was on your phone?
If you can get into recovery, what info are in those details?
Click to expand...
Click to collapse
Sorry for the long wait. If you are still interested.
CARRIER: SPR
RPMB fuse blown
RPMB PROVISIONED
CURRENT BINARY: Samsung Official
SYSTEM STATUS: Official
FRP LOCK: OFF
WARRANTY VOID: 0x0
QUALCOMM SECUREBOOT: ENABLE
RP SWREV : B3(1,1,1,1,1) K2 S3
SECURE DOWNLOAD: ENABLE
DID: 205EDC8B7351
- duplicate
MLIGN said:
- duplicate
Click to expand...
Click to collapse
What happens if you restore from the OEM function?
Try downloading custom recovery and flashing a custom rom. You will lose samsung pay but you might have a working phone it's a chance I would take if it was me. Your baseband is messed up try just flashing your carrier baseband . These are just ideas good luck
Sent from my [device_name] using XDA-Developers Legacy app
If flashing a custom ROM will fix your phone then so will downloading latest official Samsung ROM and flashing via latest Odin .
The second option above would be the best to try unless you're happy to have a custom rom and lose Samsung pay and anything that relies on Knox being functional
paul_59 said:
If flashing a custom ROM will fix your phone then so will downloading latest official Samsung ROM and flashing via latest Odin .
The second option above would be the best to try unless you're happy to have a custom rom and lose Samsung pay and anything that relies on Knox being functional
Click to expand...
Click to collapse
Update on the post, I sent it into Samsung. I should hear word soon if they can fix it and how much if anything.
Jtag dead phone to life and rewrite IMEI
First of all my phone is the s8+ G955fd, but I am sure that the people that helped me can help most Samsung owners with bricked phones.
My phone ended up being stuck on the first boot screen, I couldn't get into recovery or download mode. I installed TWRP and after that I lost my IMEI numbers( dual sim), so I tried to reflash stock and thats when i became bricked. I searched someone to help and found reference to the Fonefunshop in England. I sent it there and they said that the eMMC chip was bad. I searched for someone who could write to it or put a new one on the motherboard . I found A2Z cellular in Ottawa Canada. They used jtag to restore it to stock and they told me that the Fonefunshop had not opened the phone which is necessary to use jtag as they claimed, so avoid them.
The phone was now back doing everything it should except the IMEI's were null like before. I gave them the original IMEI's and the phone is working like new.
If your Samsung is bricked these guys can probably fix it and it won't cost much to find out.
the SM-G955U has a locked bootloader, so people should not be telling you to flash a custom recovery or custom ROMs. there is only one way to get root on this phone, through the samfail exploit, and safestrap is the only working recovery. I don't believe it supports CDMA networks but I'm not 100% sure on that. I have this device and I'm only aware of GSM carriers using it.
Just an update on this issue. I still don't have a working Baseband or IMEI. Any clues?
I was able to fix it! I had to install a custom ROM to obtain root and delete my EFS partition via ADB.
MLIGN said:
I was able to fix it! I had to install a custom ROM to obtain root and delete my EFS partition via ADB.
Click to expand...
Click to collapse
Hi. Can you detail how you fixed you phone please? What custom rom did you use and the steps you used please? I have the same phone with the same problem.
Thanks
MLIGN said:
I was able to fix it! I had to install a custom ROM to obtain root and delete my EFS partition via ADB.
Click to expand...
Click to collapse
Be very careful with doing that. It can cause the EFS (the partition that controls IMEI, Mac and a few other things) to be completely corrupted. Which will cause the device to be useless without fixing it.
Now a little heads up. As messing with the IMEI is illegal in many countries (the US being one of them) There are only 2 ways to fix an IMEI issue allowed on XDA.
1. Restore the backed up EFS partition
2. Return it to the OEM to be repaired.
What did you do after you deleted EFS? I can delete in Combination but I dont get the IMEI number back.
Please I need all XDA members assist ,because of I mistake delete EFS with combination file on my G955U VZW , I have null imei number, then I repair it by flash qcn with z3x Samsung tool , but still I have IMEI number but emergency call only is still display without service ,

N950USQS5CRF6 not getting the August update

It was originally an unlocked model straight from Samsung. I flashed AT&T firmware so I could use some features. I figured this build number would receive OTA updates.
i never got ota updates on my unlocked phone. I've installed 100% at&t stock firmware.
babbar559 said:
i never got ota updates on my unlocked phone. I've installed 100% at&t stock firmware.
Click to expand...
Click to collapse
Someone told me if I register my imie and sim number with AT&T I should start getting updates. Not only did I not get the update after giving them the info, wifi calling doesn't work anymore.
10pmStalker said:
Someone told me if I register my imie and sim number with AT&T I should start getting updates. Not only did I not get the update after giving them the info, wifi calling doesn't work anymore.
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imei and sim is registered maybe that's why wifi calling never worked on mine. lol
Current stock is N950USQU5CRG7
You can dl the update.zip file HERE, copy it to your ext SD card and flash it from recovery. This WILL factory reset
babbar559 said:
imei and sim is registered maybe that's why wifi calling never worked on mine. lol
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Haha yes, that's exactly it. I found my old Note 7 box, grabbed the sim from that and told at&t I need to update it. Wifi calling working again.
kangi26 said:
Current stock is N950USQU5CRG7
You can dl the update.zip file HERE, copy it to your ext SD card and flash it from recovery. This WILL factory reset
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Got an error, I'm on CRF6 currently.
oh wait so if we got the unlocked version straight from SS and if we give ATT an ATT phone, we can have wifi calling? O_O?
10pmStalker said:
Haha yes, that's exactly it. I found my old Note 7 box, grabbed the sim from that and told at&t I need to update it. Wifi calling working again.
Got an error, I'm on CRF6 currently.
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Do you have ATT Rom on it or it the stock Rom from Samsung?
Also, can I ask what you told them to change the IMEI?
I called and they were telling me I can't change the IMEI and that even if we do change it, it would only work on the previous phone... which seems bogus...
sixk said:
Do you have ATT Rom on it or it the stock Rom from Samsung?
Also, can I ask what you told them to change the IMEI?
I called and they were telling me I can't change the IMEI and that even if we do change it, it would only work on the previous phone... which seems bogus...
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Was originally unlocked direct from Samsung, I flashed AT&T software.
I just flashed the update on my own, I don't know if I'll ever get OTA.
I had no problem changing IMEI. It had my old S7 edge IMEI, I used chat to change it to my current Note 8. Then quickly had them switch it to Note 7 IMEI once WIFI calling wouldn't work. They asked no questions both times. Just told them I upgraded phones and need to update my IMEI. I've never called them, just used the chat feature.
10pmStalker said:
Was originally unlocked direct from Samsung, I flashed AT&T software.
I just flashed the update on my own, I don't know if I'll ever get OTA.
I had no problem changing IMEI. It had my old S7 edge IMEI, I used chat to change it to my current Note 8. Then quickly had them switch it to Note 7 IMEI once WIFI calling wouldn't work. They asked no questions both times. Just told them I upgraded phones and need to update my IMEI. I've never called them, just used the chat feature.
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Thanks Stalker...
Now I have to decide if I want to flash ATT firmware or not...
Hate having to re-setup my phone haha.
So you just used Odin and the ATT firmware correct?
FYI I have been getting ATT OTA updates on my stock SS direct Note 8.
sixk said:
Thanks Stalker...
Now I have to decide if I want to flash ATT firmware or not...
Hate having to re-setup my phone haha.
So you just used Odin and the ATT firmware correct?
FYI I have been getting ATT OTA updates on my stock SS direct Note 8.
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Yep, used Odin and the ATT firmware. I just back everything up using smart switch external storage feature and backed up my Nova Launcher settings. Only thing I don't like is I have to tweak all the settings over again.
10pmStalker said:
Yep, used Odin and the ATT firmware. I just back everything up using smart switch external storage feature and backed up my Nova Launcher settings. Only thing I don't like is I have to tweak all the settings over again.
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One last question.
Did you need to give them the old SIM#?
I have info in my email before returning my Note 7 but nothing on the SIM card # and wonder if that might give me some trouble later on for wifi calling.
sixk said:
One last question.
Did you need to give them the old SIM#?
I have info in my email before returning my Note 7 but nothing on the SIM card # and wonder if that might give me some trouble later on for wifi calling.
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Didn't give them any SIM info. Just IMEI
10pmStalker said:
Didn't give them any SIM info. Just IMEI
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Cool... I am going to give them the IMEI for my old Note 7 with stock Unlocked firmware.
Just to see if that works... if not I am going to have to flash
Thanks for the info Stalker
You won't get AT&T OTA unless you're in AT&T network with MCC 310 MNC410 (Red pock GSMA has this so it can get AT&T OTA update).
power_book said:
You won't get AT&T OTA unless you're in AT&T network with MCC 310 MNC410 (Red pock GSMA has this so it can get AT&T OTA update).
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Could you explain this a bit? I don't know what any of that means
You need active AT&T sim cards or AT&T MVNO (Red pockets(310 410 but not Freedompop 310 170) sim card in your phone to get AT&T software update.
10pmStalker said:
Could you explain this a bit? I don't know what any of that means
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Click to collapse
power_book said:
You need active AT&T sim cards or AT&T MVNO (Red pockets(310 410 but not Freedompop 310 170) sim card in your phone to get AT&T software update.
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Click to collapse
My sim card is direct from AT&T. I've been using the same one since I purchased and activated the Note 7 in an AT&T store
Did you flash your phone with AT&T firmware including home CSC or just part of AT&T firmware?
You have to flash complete AT&T firmware to get AT&T OTA.
10pmStalker said:
My sim card is direct from AT&T. I've been using the same one since I purchased and activated the Note 7 in an AT&T store
Click to expand...
Click to collapse
power_book said:
Did you flash your phone with AT&T firmware including home CSC or just part of AT&T firmware?
You have to flash complete AT&T firmware to get AT&T OTA.
Click to expand...
Click to collapse
Flashed it including home CSC. Wanted everything so I could use wifi calling since that was the whole point in the first place.

Question S21+ Factory Unlocked - buyed from Verizon - can't be flashed

Hello everyone, I'm really struggling here, I bought a Factory unlocked S21+ (SM-G996U1), I'm trying to use a Movistar SIM card and when I power on the phone it works just fine LTE and everything but after 5 minutes or so the phone show the notification that I've attached and I lose all connectivity.
I've tried a lot of things, first of all disabling the app that is running that notification (the only verizon related app on the phone) and it still appeared.
I Flashed the phone with stock factory unlocked firmware but it doesn't change, also the phone detects that I tried or did flash the firmware so I think it's not actually doing anything.
I bought credits for SamKEY and tried to change the CSC from VZW to XAA but nothing the process passed as a success but the phone shows that it's still on VZW.
I really don't know what to do, I've tried calling Verizon from my country but I can't get any help because the recording keeps asking for a Verizon number that I don't have.
If someone has any clue to what to do with a Factory Unlocked Verizon S21+ please help me!!
Thanks!
here's the notification
You will try to flash international version multiple csc rom...it helps to detect & set supported csc automatically...
I tried flashing the US Factory Unlocked firmware (CSC: XAA), but it does nothing
That phone is NOT factory unlocked. It's a Verizon variant that someone flashed the U1 firmware to - and it's still SIM locked to Verizon (that's what that Change Carrier message means).
What's the Baseband Version on the device? You can find that under Settings-->About-->Software Information
iBowToAndroid said:
That phone is NOT factory unlocked. It's a Verizon variant that someone flashed the U1 firmware to - and it's still SIM locked to Verizon (that's what that Change Carrier message means).
What's the Baseband Version on the device? You can find that under Settings-->About-->Software Information
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I have a s21 phone that is locked to verizon and I need help unlocking it
cheikhna said:
I have a s21 phone that is locked to verizon and I need help unlocking it
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I'll PM you
iBowToAndroid said:
I'll PM you
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I don't understand!?
cheikhna said:
I don't understand!?
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PM means "private message"
iBowToAndroid said:
PM means "private message"
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Yes, I see. I replied to you at pm

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