Develop Bugs

[Q] IMEI is wiped out after each phone restart

My note 2 is less than a month old. i had a bad flashing experience after flashing MIUI Rom for my phone on the note 2 android development thread.This was my first rom flashing on the phone. I luckily backed up my EFS.img before flashing. After flashing the rom i lost my IMEI...i had another issues with the rom hence restored nandroid backup of my phone using CWM. & since then after restoring my EFS.img each time i will get my IMEI back but if i reboot my phone for any reason the IMEI is wiped out. I have tried restoring using the command from the elevated Terminal emulator & using EFS pro tool.
Still the same...each time i have to restart my phone i will lose my IMEI.
is there any way of keeping my EFS partition or IMEI intact after each reboot . I am on stock ROM but i didnt flash it back using ODIN as i mentioned earlier i restored my nandroid backup.
Any help will be greatly appreciated...Please help

rohit83 said:
My note 2 is less than a month old. i had a bad flashing experience after flashing MIUI Rom for my phone on the note 2 android development thread.This was my first rom flashing on the phone. I luckily backed up my EFS.img before flashing. After flashing the rom i lost my IMEI...i had another issues with the rom hence restored nandroid backup of my phone using CWM. & since then after restoring my EFS.img each time i will get my IMEI back but if i reboot my phone for any reason the IMEI is wiped out. I have tried restoring using the command from the elevated Terminal emulator & using EFS pro tool.
Still the same...each time i have to restart my phone i will lose my IMEI.
is there any way of keeping my EFS partition or IMEI intact after each reboot . I am on stock ROM but i didnt flash it back using ODIN as i mentioned earlier i restored my nandroid backup.
Any help will be greatly appreciated...Please help
Click to expand...
Click to collapse
it seems that the backup u created u must have left your efs in selecting while backup thus the recovery backup is not giving your imei back rather u are doing it manually so once u get it done , I would suggest to flash fresh using odin

shhbz said:
it seems that the backup u created u must have left your efs in selecting while backup thus the recovery backup is not giving your imei back rather u are doing it manually so once u get it done , I would suggest to flash fresh using odin
Click to expand...
Click to collapse
Thanks for your reply...tried that but flashing stock rom using odin didnt help ...still the IMEI is wiped after each restart of the phone..
any other suggestions please...

rohit83 said:
Thanks for your reply...tried that but flashing stock rom using odin didnt help ...still the IMEI is wiped after each restart of the phone..
any other suggestions please...
Click to expand...
Click to collapse
flash the pit partition first using odin and then the stock it should solve the issue permanently if not take it to service center
http://forum.xda-developers.com/showpost.php?p=31801134&postcount=4
download pit from here and then flash the stock rom
if you dont want to take risk just go stock completely and use triangle away and get your status normal and count zero and give it to ss saying that the imei gets off. let them solve

shhbz said:
flash the pit partition first using odin and then the stock it should solve the issue permanently if not take it to service center
http://forum.xda-developers.com/showpost.php?p=31801134&postcount=4
download pit from here and then flash the stock rom
if you dont want to take risk just go stock completely and use triangle away and get your status normal and count zero and give it to ss saying that the imei gets off. let them solve
Click to expand...
Click to collapse
thanks again for your time & reply...before flashing the pit partition i would like to know what are the risks involved in flashing pit...do i need to backup my data on internal memory..i flashed pit on my samsung galaxy s advance a few months back to recover the complete storage space on it as it was reduced to 4 gb from 16 gb after flashing jellybean update from sammobile.com..so tell me what are the risks involved & what does flashing pit actually does on the phone..
looking forward for your reply

Issue resolved
rohit83 said:
thanks again for your time & reply...before flashing the pit partition i would like to know what are the risks involved in flashing pit...do i need to backup my data on internal memory..i flashed pit on my samsung galaxy s advance a few months back to recover the complete storage space on it as it was reduced to 4 gb from 16 gb after flashing jellybean update from sammobile.com..so tell me what are the risks involved & what does flashing pit actually does on the phone..
looking forward for your reply
Click to expand...
Click to collapse
btw...before installing stock rom via ODIN i put the phone in the download mode & as it had to restart to go into download mode the IMEI was wiped automatically as that was the issue...but i flashed stock firmware via ODIN & as the phone booted up IMEI was not there & hence i restored i using EFS pro again & i now i have checked it the IMEI stays after the phone restart...so the issue is fixed...thanks a ton for your reply & help :good::good:

Backup IMEI or forget about it?

I wanted to get all of your opinion on backing up the IMEI.
My situation is, I had rooted last year with the s3 toolkit. 1st rom I flashed was paranoid android then now i'm always flashing Task's AOKP. I'm currently on an older release of his rom (5-21-13) and i've probably flashed it a dozen times without any problems.
My question is, should I continue flashing this rom even though I have not backed up my IMEI or EFS folder or should I flash back to stock right away then, backup IMEI/EFS and continue flashing task's rom? Are the chances high of losing IMEI even though i've flashed the same rom for at least a year now?
I have an AT&T SGH-I747 with baseband DLK3.
In addition, if I were to flash back to stock, can I just use this? http://forum.xda-developers.com/showthread.php?t=2161667
Unfortunately the download link is no longer there so would anyone have a copy?
Also, would this be the best / easiest way to backup the IMEI as of right now? http://forum.xda-developers.com/showthread.php?t=1804117
Thank you!:cyclops:

promidgetmafia said:
I wanted to get all of your opinion on backing up the IMEI.
My situation is, I had rooted last year with the s3 toolkit. 1st rom I flashed was paranoid android then now i'm always flashing Task's AOKP. I'm currently on an older release of his rom (5-21-13) and i've probably flashed it a dozen times without any problems.
My question is, should I continue flashing this rom even though I have not backed up my IMEI or EFS folder or should I flash back to stock right away then, backup IMEI/EFS and continue flashing task's rom? Are the chances high of losing IMEI even though i've flashed the same rom for at least a year now?
I have an AT&T SGH-I747 with baseband DLK3.
In addition, if I were to flash back to stock, can I just use this? http://forum.xda-developers.com/showthread.php?t=2161667
Unfortunately the download link is no longer there so would anyone have a copy?
Also, would this be the best / easiest way to backup the IMEI as of right now? http://forum.xda-developers.com/showthread.php?t=1804117
Thank you!:cyclops:
Click to expand...
Click to collapse
I don't know about backing up your IMEI but if you want to switch back to stock 4.1.1 I recommend using this instead: http://forum.xda-developers.com/showthread.php?t=2363882
It worked like a charm when I was on LK3

always have a backup... as for me i have a copy in my 2 emails, dropbox, work hdd and home hdd... fixing qualcomm imei its much easy and anyone could fix them, in exynos cpu the history its diferent...
backup it with EFSpro, even the tool have option to fix qualcomm imei... read about them, its easy...
Sent from my GT-I9500 using xda app-developers app

carlosm15 said:
always have a backup... as for me i have a copy in my 2 emails, dropbox, work hdd and home hdd... fixing qualcomm imei its much easy and anyone could fix them, in exynos cpu the history its diferent...
backup it with EFSpro, even the tool have option to fix qualcomm imei... read about them, its easy...
Sent from my GT-I9500 using xda app-developers app
Click to expand...
Click to collapse
Unfortunately EFSpro will only let me do the option under backup on EFS Professional to backup the tz, efs, modemst1, and modemst2. Qualcomm crashes due to me currently being on AOSP. Looks like you must be on stock in order to use that. Any tools that will work for other roms besides stock?

carlosm15 said:
always have a backup... as for me i have a copy in my 2 emails, dropbox, work hdd and home hdd... fixing qualcomm imei its much easy and anyone could fix them, in exynos cpu the history its diferent...
backup it with EFSpro, even the tool have option to fix qualcomm imei... read about them, its easy...
Sent from my GT-I9500 using xda app-developers app
Click to expand...
Click to collapse
AshishPyala said:
I don't know about backing up your IMEI but if you want to switch back to stock 4.1.1 I recommend using this instead: http://forum.xda-developers.com/showthread.php?t=2363882
It worked like a charm when I was on LK3
Click to expand...
Click to collapse
If I were to go back to stock it would simply be to backup the IMEI then flash back to AOSP right away. It looks like that restores stock everything (stock kernel, stock rom, and stock recovery)
I would like to keep my recovery but flash stock rom for AT&T S3 through TWRP so I can keep my recovery.

I backed up my imei because the more posts I read, the more it seemed like having a backup would be crucial if you wanted to restore and be successful.
Since that stock rom that I linked to was no longer active, I searched my old backups and found a stock CWM nandroid backup I made after I rooted. I was on TWRP so I flashed the recovery back to CWM via rom manager. Restore the stock nandroid I made then backed up my IMEI.
Switched back to TWRP and made a nandroid backup of the stock rom with twrp so I don't have to mess with recoveries in the future.
Flashed my 5-21 nandroid that was Task's AOSP then just updated to his latest 9-10 release.
All is great and I have a full NV backup.
Thank you all for the suggestions.

promidgetmafia said:
I backed up my imei because the more posts I read, the more it seemed like having a backup would be crucial if you wanted to restore and be successful.
Since that stock rom that I linked to was no longer active, I searched my old backups and found a stock CWM nandroid backup I made after I rooted. I was on TWRP so I flashed the recovery back to CWM via rom manager. Restore the stock nandroid I made then backed up my IMEI.
Switched back to TWRP and made a nandroid backup of the stock rom with twrp so I don't have to mess with recoveries in the future.
Flashed my 5-21 nandroid that was Task's AOSP then just updated to his latest 9-10 release.
All is great and I have a full NV backup.
Thank you all for the suggestions.
Click to expand...
Click to collapse
Could you walk me through on how to have a full NV backup? Also how would I restore it if I ever needed to? I wanna know just in case I ever lose my imei.

AshishPyala said:
Could you walk me through on how to have a full NV backup? Also how would I restore it if I ever needed to? I wanna know just in case I ever lose my imei.
Click to expand...
Click to collapse
Download a terminal app(root required one) then type su enter reboot nvbackup.
To restore it's su reboot nvrestore.
!!!!!!DO NOT RESTORE BEFORE YOU BACKUP!!!! You will overwrite nv with empty data possibly losing imei forever.

!
thepoetlives89 said:
Download a terminal app(root required one) then type su enter reboot nvbackup.
To restore it's su reboot nvrestore.
!!!!!!DO NOT RESTORE BEFORE YOU BACKUP!!!! You will overwrite nv with empty data possibly losing imei forever.
Click to expand...
Click to collapse
Thanks homie!

[Q] Unable to restore..

whenever i try to restore my backup..it says MD5 mismatch...what should i do?

Biswajit619 said:
whenever i try to restore my backup..it says MD5 mismatch...what should i do?
Click to expand...
Click to collapse
Maybe you have modified the Backup files (and that is why you are getting MD5 mismatch). [emoji52]

StaticBlaze said:
Maybe you have modified the Backup files (and that is why you are getting MD5 mismatch). [emoji52]
Click to expand...
Click to collapse
i did nthing..after restore my current rom...i jst flashed a new rom..bt when i try to get back to my previous rom by restoring my back up..it says MD5 mismatch...and it not the first time....my phone knows whatz the problem to restore a backup..:silly:
thanks for the reply

Biswajit619 said:
i did nthing..after restore my current rom...i jst flashed a new rom..bt when i try to get back to my previous rom by restoring my back up..it says MD5 mismatch...and it not the first time....my phone knows whatz the problem to restore a backup..:silly:
thanks for the reply
Click to expand...
Click to collapse
Okay, I think the problem is due to different recovery.
When you flashed a new ROM, I guess it changed the Kernel too (and hence recovery is changed).
SOLUTION:
Flash back the Kernel of your old ROM (the one you used to BACKUP) and try to RESTORE..
Hope that will work for you!
Good luck!

thnks fr ur sugstn
next time i will follow this method

Lost Mobile Network after flashing twrp-2.8.6.0-t03gub.img.tar

Hi Friends in deep trouble..
i am on dn4 v2.1
i just flashed twrp-2.8.6.0-t03gub.img.tar from here http://twrp.me/devices/samsunggalaxynote2n7100.html
i thought this is the latest TWRP
now i have lost my mobile network
can some one help me plz ...

vinodxxx said:
Hi Friends in deep trouble..
i am on dn4 v2.1
i just flashed twrp-2.8.6.0-t03gub.img.tar from here http://twrp.me/devices/samsunggalaxynote2n7100.html
i thought this is the latest TWRP
now i have lost my mobile network
can some one help me plz ...
Click to expand...
Click to collapse
Just restore efs

erljayp said:
Just restore efs
Click to expand...
Click to collapse
My friend had the same problem..he has a efs backup but both of us dont knw how to restore it back (tried few methods post googling but none worked even after saying successful)

Unbelievable how many of us fell into the same trap. I also flashed this recovery because I wasn't paying enough attention to what I downloaded. And I also lost my IMEI. I hope you backed up your EFS or you could be in trouble.
If you backed up your EFS then just recover it with the same program that you used to make the backup. If that doesn't work try flashing the stock Samsung ROM and try again. You can also try to flash the modem. This helps sometimes.
I had a backup of my EFS. I tried to restore it in CM12, didn't work. I tried to restore it in Ditto4, didn't work. Then I used an old STOCK Samsung ROM. First I got a generic IMEI whereas I got null/null on custom ROMs before. Making progress. Then I tired to recover my IMEI eith EFS. Didn't work. Then I flash the modem with modem_XXDME4__ (i'm from central Europe) and voila, IMEI back.
This is of course all possible only if you backed up your EFS file. If you did not, chances of getting the phone back are quite slim. I've read about a hunderd threads while trying to recover my phone and some say that when you don't have a backup of your EFS partition, just flashing your stock Samsung rom might work. By stock Samsung ROM I mean the one that was preloaded when you bought your phone.
Good luck.

doctor_droid said:
My friend had the same problem..he has a efs backup but both of us dont knw how to restore it back (tried few methods post googling but none worked even after saying successful)
Click to expand...
Click to collapse
As what @Sheeptar (Thanks ) said, you can try to restore the efs using the method you used to back it up.
Else, try flashing a stock rom. This happened to me too and I was in the middle of flashing a new rom, so I flashed a stock rom using odin, and didn't have a problem while using the new rom.

I guess that version has no modem support, trying flashing previous version

thanks a lot guys ...
had a full twrp back and restored same ....
u ppl are so supportive ....keep up d good work ..
lolz i restored d full backup
didnt tried only efs...

another possible way..
This worked for me once.. Restore the stock version. E.g. Verizon. Then use the setup/phone/reset to factory option. I flashed the wrong note 2 room onto my i605 . Restoring via twerp didn't work, but the above did.

Note II Stuck on samsung logo possibly /efs issue?

Hi there,
I have spent hours trying to fix my issue that i am trying to fix and i was wondering if you guys could help me out?
A few weeks ago i went to go and plug my phone in as it was completely flat but for some reason it began some kind of boot loop where it would reach the lock screen for a few seconds and then power off again because it did not have enough power.
I left this on over night in the hope that it would charge my phone but when i tried to power it on in the morning it just got stuck at the Samsung logo. I did a quick web search and they suggested leaving your phone at the Samsung logo, clearing you cache/dalvic cache and finally resetting it. After all of the above failed i thought that maybe a a full restore in odin would work, the same thing happened when i tried to power it on.
I then went back into the stock recovery after the reset to find the error "E: failed to mount /efs (invalid argument)".
After quite some research into this i found a possible zip that may fix the issue from people having a similar issue but of coarse it diddn't work.
It seems as if the /efs folder/partition may be corrupted in some way.
I am really stuck on this now and i am reluctant to pay lots of money to someone to fix it
Do you have any ideas?
Many thanks,
Shenstone
EDIT: The phone has CWM recovery installed and i have attemped to flash the stock firmware with both Kies and Odin

Bro, maybe flash stock firmware will solve the prolem

exorcistz said:
Bro, maybe flash stock firmware will solve the prolem
Click to expand...
Click to collapse
Sorry forgot to mention that, i have flashed stock firmware with both odin and kies but both do not work, same process still occurs
Any other ideas? :/

Do you have the original EFS folder backed up? If so, then try restoring it and flashing a stock ROM... If you don't have your EFS backed from earlier you might have some problems, I don't know if it's possible to fix it then...

librapt said:
Do you have the original EFS folder backed up? If so, then try restoring it and flashing a stock ROM... If you don't have your EFS backed from earlier you might have some problems, I don't know if it's possible to fix it then...
Click to expand...
Click to collapse
I didn't specifically backup the EFS folder, however I performed a full backup in CWM recovery. Do you know if there is a backup of the EFS folder there?
Just a quick question, is it possible to re-create a EFS folder or not?
Many thanks!

shenstone said:
I didn't specifically backup the EFS folder, however I performed a full backup in CWM recovery. Do you know if there is a backup of the EFS folder there?
Just a quick question, is it possible to re-create a EFS folder or not?
Many thanks!
Click to expand...
Click to collapse
See this, http://forum.xda-developers.com/showthread.php?t=2420881

shenstone said:
I didn't specifically backup the EFS folder, however I performed a full backup in CWM recovery. Do you know if there is a backup of the EFS folder there?
Just a quick question, is it possible to re-create a EFS folder or not?
Many thanks!
Click to expand...
Click to collapse
I use this,
http://forum.xda-developers.com/showthread.php?t=2269318