Develop Bugs

[Help] Phone won't detect sim. Unknown Baseband and IMEI

So... I seem to be having the efs corruption issue with my co-worker's phone. I've been searching all over and have found how others have solved the problem, but it seems that our nv_data.bin is not located in our efs directory.
Does anyone have any idea where these files are? I need to check the last modified dates of their backup files to see if I can restore them >.<
Any help is greatly appreciated!!

Bump.. If anyone knows where these files are this could help us from running into the corrupt efs problem that many people have had. Usually backing up your efs prevents your phone from becoming unable to function as a phone.
I do remember reading something about our unlock code not being present in our nv_data.bin.. And when I check my efs folder in both my, as well as my co-worker's phone there is no nv_data.bin so maybe it has been relocated??
Anyone with knowledge on this subject.. your input would be greatly appreciated! I'm also gonna read over the unlock threads to see if there is any relevant info there.

I am having this problem now, I know you posted this over a month ago, but please tell me you know the location of the backup files or any other solution for this?'
Thank you,

[Q] T989 - Baseband and IMEI Unknown
I have searched and read many threads already. I understand the i9100 uses a file called nv_data.bin and requires its .bak file for a fix.
But, I dont think the t989 is the same because these files dont seem to exist, or at least not in the locations the threads for i9100 state. I am wondering if anyone has had this problem and/or how they fixed it. I know it was caused because of trying to unlock, but I'm looking for a solution.
Thanks!

just buy one of those $20 online unlock or go to your local phone kiosk to have it unlocked
any one with a machine to unlock Samsung phones can get this phone unlocked easily
there's no software unlock yet, as you have found on your searches

I have T-Mobile and don't really care for the unlock, it was a mistake. At this point, I just want to fix the unknown IMEI and unknown Baseband issue. Because of this problem my phone cannot get a signal... Will performing a machine unlock fix this problem?
Note: When I type in *#06# the response is not my IMEI number. It says "null"

svahora said:
I have T-Mobile and don't really care for the unlock, it was a mistake. At this point, I just want to fix the unknown IMEI and unknown Baseband issue. Because of this problem my phone cannot get a signal... Will performing a machine unlock fix this problem?
Note: When I type in *#06# the response is not my IMEI number. It says "null"
Click to expand...
Click to collapse
You can try to find someone locally with a SPT Box2. This unit can flash, unlock & repair IMEI on SGH-T989(d). I was gonna pick one up, but they are like $250 yikes !!

KillaHurtz said:
You can try to find someone locally with a SPT Box2. This unit can flash, unlock & repair IMEI on SGH-T989(d). I was gonna pick one up, but they are like $250 yikes !!
Click to expand...
Click to collapse
What does the (d) stand for?
And, how can I make sure this never happens again in the future? I know there are backup options out there (CWM, Nandroid), but are there any that make a complete clone of the phone's image? In case I mess up the efs or IMEI files again I can restore and be ok.
Thanks!

T989D = Canadian release of T989
they are identical, the just use the D for Canadian

AllGamer said:
T989D = Canadian release of T989
they are identical, the just use the D for Canadian
Click to expand...
Click to collapse
Would a Nandroid backup fix this in the future?

is hard to say, we have no idea where is the real IMEI information is being stored in the new models, but is no longer in the old EFS folder

AllGamer said:
is hard to say, we have no idea where is the real IMEI information is being stored in the new models, but is no longer in the old EFS folder
Click to expand...
Click to collapse
I wonder if the new Galaxy Nexus has its IMEI files stored similarly. If so, we can join forces with that forum group.

If Android is not mounting your firmware properly in the system this will cause no baseband and no imei detected. i would try and flash the stock rom to make sure.

-Mr. X- said:
If Android is not mounting your firmware properly in the system this will cause no baseband and no imei detected. i would try and flash the stock rom to make sure.
Click to expand...
Click to collapse
Did it twice, the stock rom, modem, and kernel.

The radio (modem firmware) might have got corrupted if somebody tried to flash international GS2 ROM or modem.
Try to flash only the Radio (KL1 is the latest for T-Mobile) via ODIN (use PDA slot).

cyberjam said:
The radio (modem firmware) might have got corrupted if somebody tried to flash international GS2 ROM or modem.
Try to flash only the Radio (KL1 is the latest for T-Mobile) via ODIN (use PDA slot).
Click to expand...
Click to collapse
Would the KL1 work any different than the older one? I tried ODINing the original one, and it didn't work and increased the count so I didn't try the KL1.

I just got my replacement phone yesterday for this same problem. Flashed the stock kernal, and also the modem just to be safe and nothing would fix it. From what I know its just a hardware issue, not software. I was chatting with samsung and t-mobile people about this trying all kinds of fixes to nothing left but hardware defect.

[Q] Trouble with network connectivity probably caused by EFS???

Hello, this is really weird. In fact, when I insert the SIM to my Note 2 N7100 and turn it on, it allows me to make emergency call, but I cannot use it to make any others and it doesn't show the carrier name (it shows Emergency call only). And when I try to use it to make normal phone calls, it says that I am not registered to a mobile network. I try to factory reset my phone, but the problem remains. I then try to remove the SIM card, and it says that I need to insert a SIM card (that means that it is not a hardware problem since it recognizes the card). I then try to go to the mobile network setting to try to connect to the network manually, it connects me but it shows me a warning which says that the mobile network service is not available (and the Emergency call only label remains). However, I am sure that this is not the problem of the card neither since when I insert the card to my Moto MB860, I can make calls as usual. So, what is the problem ??? It seems to me that the problem happens spontaneously since it works perfectly until yesterday. And all other wireless function works fine including wifi , Bluetooth and GPS and the only thing goes wrong is 3g and 2g.
Additional information:
ROM: Omega v.16
Carrier: Fido Canada (as you can see)
Thanks.

What comes to my mind at first that something wrong with your sim card but if you insist that everything is ok with your card so I don't know what to suggest to you. Is it not related with your Omega ROM?
Sent from my GT-N7100 using xda premium

artorelis said:
What comes to my mind at first that something wrong with your sim card but if you insist that everything is ok with your card so I don't know what to suggest to you. Is it not related with your Omega ROM?
Sent from my GT-N7100 using xda premium
Click to expand...
Click to collapse
Ya, I was asking this question on the Omega forum and I am waiting for the right response.
Sent from my GT-N7100 using xda premium

It does seem to be Efs related. Did u downgrade from the latest firmware ? Check these links-
http://forum.xda-developers.com/showthread.php?t=2332913
http://forum.xda-developers.com/showthread.php?t=2331833
Sent from my GT-N7100 using xda app-developers app

joshphilips said:
It does seem to be Efs related. Did u downgrade from the latest firmware ? Check these links-
http://forum.xda-developers.com/showthread.php?t=2332913
http://forum.xda-developers.com/showthread.php?t=2331833
Sent from my GT-N7100 using xda app-developers app
Click to expand...
Click to collapse
Yes, I did downgrade from v17 back to 16 since something went wrong with Poweramp but I forgot that if I selected for the efs backup or not since I (stupidly) didn't think that efs is important...:banghead:
Sent from my GT-N7100 using xda premium

Do some basic troubleshooting:
Does the IMEI number from dialling *#06# match the one on the sticker?
If the answer to this is yes: Then you should contact your carrier as it sounds like your IMEI might have been blacklisted (often if a phone is reported stolen)
If the answer is no: Then you need to fix your IMEI so it matches as it should. This would usually be done by restoring your EFS backup. I suggest restoring a totally stock Firmware if they don't match and you don't have an EFS backup. But you should have one somewhere, surely? Every tutorial out there tells you to back it up...
Good luck.

muppetmania said:
Do some basic troubleshooting:
Does the IMEI number from dialling *#06# match the one on the sticker?
If the answer to this is yes: Then you should contact your carrier as it sounds like your IMEI might have been blacklisted (often if a phone is reported stolen)
If the answer is no: Then you need to fix your IMEI so it matches as it should. This would usually be done by restoring your EFS backup. I suggest restoring a totally stock Firmware if they don't match and you don't have an EFS backup. But you should have one somewhere, surely? Every tutorial out there tells you to back it up...
Good luck.
Click to expand...
Click to collapse
Thanks for replying, I should have a backup, but it probably be the wrong one. Anyway I will go for a full stock restore since I have the firmware with me now.
Sent from my GT-N7100 using xda premium

muppetmania said:
Do some basic troubleshooting:
Does the IMEI number from dialling *#06# match the one on the sticker?
Good luck.
Click to expand...
Click to collapse
Do you mean the one in the About Device ==> Status? In fact, the IMEI from the dialing does match the one in About Device ==> Status. However, I don't get your instruction since if in the case where IMEI from the setting matches the one on the dialer means that my phone is reported to be stolen, then why I have to make the IMEI in the setting and the one shown in the dialer the same?

Dan Law 001 said:
Do you mean the one in the About Device ==> Status? In fact, the IMEI from the dialing does match the one in About Device ==> Status. However, I don't get your instruction since if in the case where IMEI from the setting matches the one on the dialer means that my phone is reported to be stolen, then why I have to make the IMEI in the setting and the one shown in the dialer the same?
Click to expand...
Click to collapse
No, when I say "The one on the sticker" I, strangely enough, mean the one on the sticker.
Take off your battery and the phone will have a sticker/label with the IMEI on it. Verify that number matches.

muppetmania said:
No, when I say "The one on the sticker" I, strangely enough, mean the one on the sticker.
Take off your battery and the phone will have a sticker/label with the IMEI on it. Verify that number matches.
Click to expand...
Click to collapse
Thanks for your clearification No, it wasn't.:good: Then, I need to flash a stock firmware via Odin, right? In addition, when they say stock firmware, they mean the one that is on sammobile.com, right? In other words, if I have a Hong Kong version of GT-N7100, the file from this link (http://www.sammobile.com/firmwares/3/?download=15126) would be the correct one, isn't?

Dan Law 001 said:
Thanks for your clearification No, it wasn't.:good: Then, I need to flash a stock firmware via Odin, right? In addition, when they say stock firmware, they mean the one that is on sammobile.com, right? In other words, if I have a Hong Kong version of GT-N7100, the file from this link (http://www.sammobile.com/firmwares/3/?download=15126) would be the correct one, isn't?
Click to expand...
Click to collapse
That's correct, yes. It doesn't actually matter which N7100 image you flash, but if you have a Hong Kong version you might as well flash that image. Just make sure you don't have a N7105 (the LTE/Dual Carrier version) - flashing A N7105 to an N7100 (or the other way around) is a recipe for major disaster.
Flashing the image should fix the problem, but it also depends. If the EFS is really totally corrupt, it won't help, you need to have that EFS backup or take the phone to someone who can repair it for you. There are specialist tools to repair EFS, but they cost quite a bit of money. Most reliable phone unlocking places should have something that can help you.
Anyway, hopefully restoring to stock will fix the problem.
Good luck.

muppetmania said:
That's correct, yes. It doesn't actually matter which N7100 image you flash, but if you have a Hong Kong version you might as well flash that image. Just make sure you don't have a N7105 (the LTE/Dual Carrier version) - flashing A N7105 to an N7100 (or the other way around) is a recipe for major disaster.
Flashing the image should fix the problem, but it also depends. If the EFS is really totally corrupt, it won't help, you need to have that EFS backup or take the phone to someone who can repair it for you. There are specialist tools to repair EFS, but they cost quite a bit of money. Most reliable phone unlocking places should have something that can help you.
Anyway, hopefully restoring to stock will fix the problem.
Good luck.
Click to expand...
Click to collapse
Thanks for information, but how do I know that if the EFS is "totally" corrupt, "partially" corrupt, or not corrupt at all? In fact, I never touch the EFS in the root. Also, as I am not quite sure that if I have any previous EFS(S) backup or not, so, if possible, where does the backup(s) most likely to be found?

If you haven't taken an EFS backup yourself, then you won't have any.
I don't know the difference between corruption levels either, all I know is I've read a number of forum posts where someone has reflashed stock and their EFS data (i.e. the right IMEI number) is back. So I'd consider that to be a partial corruption. Others have flashed back to stock and it's still a bogus IMEI
Basically, flash back to stock. If it doesn't work, you'll have to take it in for repair.
UPDATE: Please read on - this information is incorrect - it is possible to recover with the correct modem flashed.

Before doing the flash with Odin, do I have to perform a factory reset? Since all the app data and homescreen layout remains the same after the reboot and the IMEI is also the same as before. And is it normal that my device got unrooted after flashing the stock firmware?

NOTE: The information from me in this post below is wrong
Dan Law 001 said:
Before doing the flash with Odin, do I have to perform a factory reset? Since all the app data and homescreen layout remains the same after the reboot and the IMEI is also the same as before. And is it normal that my device got unrooted after flashing the stock firmware?
Click to expand...
Click to collapse
It's normal your device got unrooted, yes. If your IMEI is still the same after ODIN and stock flash, then you have major issues (sorry!)
Doing a factory reset etc won't help. Your /efs partition is either gone or corrupt.
What IMEI does *#06# show?

muppetmania said:
it's normal your device got unrooted, yes. If your imei is still the same after odin and stock flash, then you have major issues (sorry!)
doing a factory reset etc won't help. Your /efs partition is either gone or corrupt.
What imei does *#06# show?
Click to expand...
Click to collapse
004999010640000 / 01

Dan Law 001 said:
004999010640000 / 01
Click to expand...
Click to collapse
Type 004999010640000 into Google...
Sorry man. Good luck getting it fixed.

just flash ME4 modem everything will be alright

bhasg1007 said:
just flash ME4 modem everything will be alright
Click to expand...
Click to collapse
Interesting to know - why does that work? (I don't doubt you, I just like to know why things work)

Just go through this thread http://forum.xda-developers.com/showthread.php?t=2333216
Even i had the same problem no network no imei nothing after downgrading so i just changed the modem and now everything is fine as it should be

Updated Optimus G got an 3 operator logo

Hi
I bought an Optimus G for about 2 months ago unbranded and not carrier locked at local mobile store. Its sold now but im just curious what happened with it.
I came home and run an OTA and there was no update.
Then i downloaded LG Software Updater or what the name is from their homepage.
I plugged in my phone and there was an update? WTF. So i update the phone with it.
When phone restarts i saw instead of LG bootanimation i got an 3 Operator LOGO. HOW?
But my Tele2 card still worked no problem at all.
I called LG and they never heard something about that. Then they told me to return it but why it worked with Tele2.
Then i decide to sell it and person that buy it from me cant get his TELIA operator now work on it?
When i look at the baseband or version it was infected with E97510F-232-10 wich is an number for Operator 3.
Tryed to reflash it with other but E97510F-232-10 remains and not changing.
But why cant he use TELIA right now. He tried 2 different SIM Cards?

OK found the problem.
He is missing imei. He just seing a 0 (ZERO)
WTF. I forgot to backup the IMEI.
Anyway to fix it or just send it to LG for repair

bihslk said:
OK found the problem.
He is missing imei. He just seing a 0 (ZERO)
WTF. I forgot to backup the IMEI.
Anyway to fix it or just send it to LG for repair
Click to expand...
Click to collapse
Just search for a thread here named "Backup/Restore EFS partition" that contain the IMEI...
Sent from my CM10.2 OGE973

JasonBourne.Qc said:
Just search for a thread here named "Backup/Restore EFS partition" that contain the IMEI...
Sent from my CM10.2 OGE973
Click to expand...
Click to collapse
I know that thread but how can i restore something i never made an backup of
He will send it for repair instead. Thanks anyway for the answer..

hmm what i know from 3 is that they have their own software sometimes, ino from older phone, they had a habbit of using power faster then stock software, so many ppl got their 3 phones flashed with normal software.

bihslk said:
OK found the problem.
He is missing imei. He just seing a 0 (ZERO)
WTF. I forgot to backup the IMEI.
Anyway to fix it or just send it to LG for repair
Click to expand...
Click to collapse
https://www.google.com/settings/dashboard?hl=en
Assuming you use your a google account, go to the link and click on android. Every android device you have linked with google should have their IMEI number stored there.

kiwinazgul said:
https://www.google.com/settings/dashboard?hl=en
Assuming you use your a google account, go to the link and click on android. Every android device you have linked with google should have their IMEI number stored there.
Click to expand...
Click to collapse
I know that but imei is corrupt so google cannot help me LOL I even have imei on the box. But phone is send in for repair.

T-mobile S4 Stock Android 4.3, Cannot Unlock, IMEI unknown after attempt by localshop

Hi All,
I had purchased T-Mobile Samsung Galaxy S4 (SGH-M919) with Stock android 4.3 while I was in usa, and want to use it in my home country now as I have left usa. I couldn't found any unlock solution on internet for stock android 4.3, and T-Mobile would not give me the unlock code. I tried third party services to provide unlock code and it did not work either. So I went to a local shop, and he screwed everything up. When I went back to the local shop to receive my phone (hoping it might have been definitely unlocked by them), he told me that he tried to downgrade it to 4.2.2 but it did not work (only after reading through all the forums I realize there is no way to go back to stock 4.2.2 if you are on stock 4.3 because of knox / bootloader issues on 4.3, leads me to think the shopowner did not really do his research before touching my phone, and no, he did not do any EFS backup). In an attempt to unlock my phone, he also flashed Metro PCS stock ROM on my phone, not to mention, my IMEI number is also 'Unknown' now. I managed to get back on T-Mobile stock 4.3 ROM now but still IMEI is unknown. I also tried to go to nearest Samsung center and they said they would not touch international phone models. At this point I have no idea what to do. Any suggestions how to get back my IMEI and or at the least to get the phone working to my country's network?
Thanks.

Try flashing the mk2 modem using odin. That may work but not sure.
Sent from my SGH-M919 using Tapatalk

Shop just need to pay you for new phone.
☞ Sent from here☜???

I won't provide a link but there are ways to restore your imei and as for unlocking I have used fast gsm dot com and it has worked every time. I hope u get ur issues fixed. Good luck
Sent from my SGH-M919 using Tapatalk

sd_N said:
I won't provide a link but there are ways to restore your imei and as for unlocking I have used fast gsm dot com and it has worked every time. I hope u get ur issues fixed. Good luck
Sent from my SGH-M919 using Tapatalk
Click to expand...
Click to collapse
Hi sd_N, is it possible for you to provide me the link in private so I can just restore my original imei. I will then try fastgsm.com to unlock as you suggested. Thanks.

Anyone?

galaxysiv said:
Anyone?
Click to expand...
Click to collapse
Did you ever make any nandroid backups through recovery or save your /efs?

xdapowerapps said:
Did you ever make any nandroid backups through recovery or save your /efs?
Click to expand...
Click to collapse
Hi xdapowerapps, no I did not, I didnt knew the local shop would try to downgrade or flash METRO PCS rom on it :crying:

galaxysiv said:
Hi xdapowerapps, no I did not, I didnt knew the local shop would try to downgrade or flash METRO PCS rom on it :crying:
Click to expand...
Click to collapse
The local shop broke it. Tell them to pay for it.
Also, the only reason T Mobile won't give you an unlock code is if the phone isn't paid for in full. If the phone is paid for in full, they HAVE to give you the unlock code.
Are you sure you didn't buy the phone in the US, then leave the country without paying the bill so you could use the phone internationally without paying full price? If not, there is no reason T Mobile wouldn't give you the unlock code. So there's some missing information in this story.
Also, we do not discuss how to change IMEI's on XDA. The only thing permissable on XDA about flashing IMEI's is restoring YOUR OWN IMEI from a backup. That is done by restoring the EFS partition. But you didn't have a back up so you can't do that. That means anyway to fix your IMEI involves what is an illegal hack and that discussion is expressly not permitted on XDA. That information is used for illegal purposes and XDA is not going to be the place where it's shared for legal reasons.

Skipjacks said:
The local shop broke it. Tell them to pay for it.
Also, the only reason T Mobile won't give you an unlock code is if the phone isn't paid for in full. If the phone is paid for in full, they HAVE to give you the unlock code.
Are you sure you didn't buy the phone in the US, then leave the country without paying the bill so you could use the phone internationally without paying full price? If not, there is no reason T Mobile wouldn't give you the unlock code. So there's some missing information in this story.
Also, we do not discuss how to change IMEI's on XDA. The only thing permissable on XDA about flashing IMEI's is restoring YOUR OWN IMEI from a backup. That is done by restoring the EFS partition. But you didn't have a back up so you can't do that. That means anyway to fix your IMEI involves what is an illegal hack and that discussion is expressly not permitted on XDA. That information is used for illegal purposes and XDA is not going to be the place where it's shared for I also still see the imei folder inside EFS with a file mps_code.bat, but no nv files. (The imei folder was not regenerated on deletion either) Am I missing something? also still see the imei folder inside EFS with a file mps_code.bat, but no nv files. (The imei folder was not regenerated on deletion either) Am I missing something? egal reasons.
Click to expand...
Click to collapse
Hi skipjacks, thanks for responding. Nothing is pending with t-mobile, I was on prepaid account. I bought the phone like 10 days before leaving usa (due to emergency). T-mobile says my number on this new device should have being working for at least 45 days or so with refill balance. My cycle ended after 15 days of purchase and I really didnt see any reason to refill it as I was no more in usa. And no, I dont want to CHANGE my IMEI, only want to restore my own IMEI only. I am not sure if my EFS partition is corrupted, because I rooted my phone tried to backup EFS folder now (I know its too late but still), deleted it and rebooted (as a few threads suggested it would regenerate nv data files), but neither did I see any nv files when I did a back up now, nor after I rebooted. When I rebooted, the EFS folder did regenerate but there were no nv files in there. Also, after deleting EFS and regeneration the serial number was corrupted, but when I restored my backup, the serial number showed up correctly again. Also my current backup contains the imei folder with mps.code_bat file. I noticed that even imei folder was not regenerated on deletion of EFS and reboot. I somehow have the feeling that this is still indicating that my original EFS folder is still present (though I may be wrong, because I dont know). But my concern is the nv data files, which I dont see anywhere. I did come across several threads about imei corruption and restoration, but the only one I didnt come across was T-mobile SGH-M919 with stock android 4.3. I am wondering if this has some different file storage structure for imei (which again I dont know). At this point I am concerned about getting back my imei, I can get the unlock code from some reputed paid service again. I understand that open discussion about imei involving anything CHANGING IMEI is not allowed here. If anyone could just help me out restoring my original imei, even by pm, I would really appreciate it. I just dont want to throw away the phone and lose my money because of the error done by repair shop.

galaxysiv said:
Hi skipjacks, thanks for responding. Nothing is pending with t-mobile, I was on prepaid account. I bought the phone like 10 days before leaving usa (due to emergency). T-mobile says my number on this new device should have being working for at least 45 days or so with refill balance. My cycle ended after 15 days of purchase and I really didnt see any reason to refill it as I was no more in usa. And no, I dont want to CHANGE my IMEI, only want to restore my own IMEI only. I am not sure if my EFS partition is corrupted, because I rooted my phone tried to backup EFS folder now (I know its too late but still), deleted it and rebooted (as a few threads suggested it would regenerate nv data files), but neither did I see any nv files when I did a back up now, nor after I rebooted. When I rebooted, the EFS folder did regenerate but there were no nv files in there. Also, after deleting EFS and regeneration the serial number was corrupted, but when I restored my backup, the serial number showed up correctly again. Also my current backup contains the imei folder with mps.code_bat file. I noticed that even imei folder was not regenerated on deletion of EFS and reboot. I somehow have the feeling that this is still indicating that my original EFS folder is still present (though I may be wrong, because I dont know). But my concern is the nv data files, which I dont see anywhere. I did come across several threads about imei corruption and restoration, but the only one I didnt come across was T-mobile SGH-M919 with stock android 4.3. I am wondering if this has some different file storage structure for imei (which again I dont know). At this point I am concerned about getting back my imei, I can get the unlock code from some reputed paid service again. I understand that open discussion about imei involving anything CHANGING IMEI is not allowed here. If anyone could just help me out restoring my original imei, even by pm, I would really appreciate it. I just dont want to throw away the phone and lose my money because of the error done by repair shop.
Click to expand...
Click to collapse
First off....the enter key is your friend. Hit it every so often when typing giant blocks of text like that. :laugh:
Second, since your IMEI has been deleted, you now have to change it, even if you just want to change it back to what it was before. The process to fix it now is what can't be discussed here.
IF you had backed up your EFS partition, then it would be as simple as restoring it in recovery. That's all well and good. But your IMEI is now 0, so you have to change it to what it was.
But all that aside, you went to a store and they broke it. Take it back there and raise holy hell until they fix it for you or buy you a new one. I know consumer protections are stronger in some countries than others, but wherever you are, yelling and screaming is a universal language.

Skipjacks said:
First off....the enter key is your friend. Hit it every so often when typing giant blocks of text like that. :laugh:
yelling and screaming is a universal language.
Click to expand...
Click to collapse
You
learn
new
things
every
day. :silly:

Can someone at least tell me what file in T-Mobile Galaxy S4 SGH-M919 Stock Android 4.3 contains imei number, so at least I know if I even have that file or not or whether it is missing? Thanks.

galaxysiv said:
Can someone at least tell me what file in T-Mobile Galaxy S4 SGH-M919 Stock Android 4.3 contains imei number, so at least I know if I even have that file or not or whether it is missing? Thanks.
Click to expand...
Click to collapse
Whether your file is missing, modified, or corrupted, you need your /efs folder to restore it. You do not have have a nandroid backup or the /efs folder. I am sorry but the simplest we can put it without sounding harsh, you're screwed. You need to request the local shop give you a replacement phone or credit to get a new one.

Update: I went back to the shop and told them "You broke it, you fix it, I don't know how and I don't care, you gotta fix it". They managed to fix the imei number somehow. Regarding unlock, the shop ended buying the unlock code themselves. They mentioned that no one is able to unlock T-Mobile S4 with Stock 4.3 as of now without unlock code, unless they have some device like Z3x box. The phone is finally unlocked and working fine on my network. (YES, A HUGE HUGE RELIEF).
Everything is fine, except for 2 issues.
1. I want to backup my EFS folder so that I don't enter into trouble with IMEI again. I tried EFS Pro, but its not working. All I see is "'Initializing ADB server..." (the phone is rooted, usb debugging mode enabled, and supersu permission granted when prompted). I also tried to backup using Andromizer, but it says "Notification: File not found in /storage/emulated/0/Amdromizer/efs/efs.img". What is my best option as of now to backup and store my imei safely somewhere?
2. I am having issues with Wi-Fi. Before the shop flashed my phone, it was all good, but now it doesn't auto-connect to my home Wi-Fi anymore. Everytime I reboot or get out of range, I have to manually select my home network everytime and also enter the password everytime. Nothing has changed on my router. The other Samsung device that I have still auto-connects to my home Wi-Fi as usual. How can I fix this?
Thanks.

galaxysiv said:
Update: I went back to the shop and told them "You broke it, you fix it, I don't know how and I don't care, you gotta fix it". They managed to fix the imei number somehow. Regarding unlock, the shop ended buying the unlock code themselves. They mentioned that no one is able to unlock T-Mobile S4 with Stock 4.3 as of now without unlock code, unless they have some device like Z3x box. The phone is finally unlocked and working fine on my network. (YES, A HUGE HUGE RELIEF).
Everything is fine, except for 2 issues.
1. I want to backup my EFS folder so that I don't enter into trouble with IMEI again. I tried EFS Pro, but its not working. All I see is "'Initializing ADB server..." (the phone is rooted, usb debugging mode enabled, and supersu permission granted when prompted). I also tried to backup using Andromizer, but it says "Notification: File not found in /storage/emulated/0/Amdromizer/efs/efs.img". What is my best option as of now to backup and store my imei safely somewhere?
2. I am having issues with Wi-Fi. Before the shop flashed my phone, it was all good, but now it doesn't auto-connect to my home Wi-Fi anymore. Everytime I reboot or get out of range, I have to manually select my home network everytime and also enter the password everytime. Nothing has changed on my router. The other Samsung device that I have still auto-connects to my home Wi-Fi as usual. How can I fix this?
Thanks.
Click to expand...
Click to collapse
For the efs you can back it up using recovery. Just boot to recovery and its one of the options in the backup menu. The resulting file will be like a few KB. Its supposed to be small. Dont worry
Sent from your phone. You should be more careful where you leave that thing.

Tmobile gave me an unlock code and my phone isn't paid for but I used the region lock away app before I got the unlock code and it worked but u got to be rooted
Sent from my SGH-M919 using xda app-developers app

[Q] N7100 generic IMEI 0049 on 4.4.2

Please help me with my situations.
It is almost 1 week phone start making this problem. From beginning my phone getting boot loop. I have not root the phone. It is originally stock rom. I thought that the system get corrupted and then try to flash the phone with stock rom N7100XXUFNG4_N7100OLBFNG1_N7100DXUFND2_HOME.tar with odin.
This was my first time flashing this phone so I did not know anything about any EFS backup. After successfuly flashing the stock rom, at first I feel glad but suddenly I have got emergency call only. Then after what I have been searching and reading for almost a week, it was my IMEI 0049.
I have tried flash the stock rom again but the problem still remain. I have tried downgrade to 4.1.2 but the odin won't let me flash it. I have tried delete the EFS folder and paste the backup nv_data.bin but the IMEI 0049 still there. I don't have any service box so I can't repair my EFS from my computer. Is there any solutions I really really appreciate if and you guys can help with my problem. Thank you :good:

Did the imei in the phone match the imei on the label under the battery?

audit13 said:
Did the imei in the phone match the imei on the label under the battery?
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Click to collapse
Of course not, usually IMEI starts with 3***.

I know your phone has a generic imei.
What I meant is this: did the imei in the phone matched the imei on label before the problem started.
The phone was new when you got it?

audit13 said:
I know your phone has a generic imei.
What I meant is this: did the imei in the phone matched the imei on label before the problem started.
The phone was new when you got it?
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Click to collapse
Ops sorry, yes it was matched and the phone working perfectly normal before it getting boot loop. Can my phone still can be save without sending to samsung?

You try using nvwriter to inject the imei.
Have you tried flashing the stock rom again? I assume nd2 is the latest rom for your phone.

audit13 said:
You try using nvwriter to inject the imei.
Have you tried flashing the stock rom again? I assume nd2 is the latest rom for your phone.
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Click to collapse
I have not try the other version firmware yet, is it possible the wrong firmware corrupted my imei?

It is possible that the ROM flashed is too old.
I see stock ROMs here: http://www.sammobile.com/firmwares/database/GT-N7100/

audit13 said:
It is possible that the ROM flashed is too old.
I see stock ROMs here: http://www.sammobile.com/firmwares/database/GT-N7100/
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Click to collapse
Can you suggest me stock firmware? I am from Malaysia

I don't see firmware specifically for Malaysia. What is the original country or carrier for the phone? Where did you get the firmware that you flashed to the phone?

audit13 said:
I don't see firmware specifically for Malaysia. What is the original country or carrier for the phone? Where did you get the firmware that you flashed to the phone?
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Click to collapse
Well my country carrier starts with +6. I just ask my cousin to download that firmware for me since my house internet always disconnected I don't know why. I just ask him to download the latest firmware for my country.
That nvwriter guide is not for my phone. Is it work also with my phone?

Sorry, I'm not too familiar with nvwriter. I just know that some people have used it with Samsung phones.

The nv writer look promising, but it cannot read my phone cause when I select the rmnet/rndis/+dm+modem, it is only showing unknown device. Hmm my samsung usb driver already up to date.