My previous phone was Galaxy Spica and it has an efs folder where the nv_data.bin is located and supposed to have your IMEI among other things. I tried to look for an efs folder on our mediapad and I did not see any. Is there any way we can make a backup of our IMEI so we can restore later in case of a bad flash?
I have a feeling the IMEI is fundamentally hard-coded. I accidentally mangled my IMEI when I reflashed the modem_st1 and modem_st2 partitions, but when I re-ran a full Huawei update via dload directory it restored my proper IMEI back.
It is good to know that we are protected in some way. Thanks for the info. One of the worse cases is losing your IMEI and not have any way to fix it.
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Hey Guys
My i9300 was running stock rom and i decided to flash the illusion rom. but i downloaded and flashed the wrong file. so now my imei number is lost and i get no signal.
I have backup of IMEI from the software EFS pro but it does not restore. the software shows all ok but the IMEI on phone is still unknown.
Also there is a file on my sd card with the backup of efs. maybe a rom previously flashed may have taken the backup. I can try and restore that.
Please help me how to do so. its a tar.gz file
Please help me restore my IMEI number. i have no phone signal and dont want to go to service center because my phone is rooted and its voided warranty.
also i had a nandroid backup i restored it and all my data has been restored but not the IMEI
thanks in advance.
Can't help you to get your IMEI back, but to use https://play.google.com/store/apps/details?id=eu.chainfire.triangleaway , use Odin (or mobileOdin) or unroot it you don't need a IMEI.
Tar files are flashed via Odin .
jje
Actually this may be simpler than expected.
tar.gz can be flashed from odin since now it has an /efs field. That alone may be enough. But please do another backup before trying anything. Really, just copying all the files over to somewhere safe is enough.
But Tar.gz is a compressed file (like zip). Have you tried to check what's inside that tar.gz? I'd decompress it to somewhere and compare it to what's inside your /efs partition on your phone. If it seems the same, i'd do a new /efs backup and try replacing the contents of the /efs with the uncompressed backup.
You may need to do this through adb on recovery mode - once, brain went full retard and wiped my /efs partition by not thinking about what i was doing, phone instantly rebooted on the spot to never normally boot again until fixed (had an awesome weekend trying to figure how to fix it , posted somewhere around here how i did it). Doing it from recovery is just to avoid that. Also, all this is assuming some file on your /efs is just corrupted and your backup is in good shape.
If you're still feeling unsure you can (and should) search for related stuff around here in xda. There is PLENTY of info about lost/corrupted /efs around, happens quite often.
Hey guys,
Thank you very much for your replies
It's quite shocking but an official firmware flash via odin solved the problem.
I guess my imei was just corrupted.
Thanks
Hey guys, I had the same problem, but now I know what went wrong, thanks!
after playing around unnecessarily with roms it seems I messed up my IMEI.
by checking if IMEI is valid via dialer, i got a number which starts with 0049, which as I understand is bad. I have done a little reading on ESF backup and restore, but the ways to restore EFS always require backup from the same apllication...So I searched for a backed that maybe occoured automatically, so I found one in the root internal storage folder and discovered a folder named "esf_backup", probably created during rom installations, the question is can i restore the tar.gz file in this folder? Or has my phone been messed up way beyond repair?
thx upfront
Yes you can, read the hundred or so other exact same posts to find out how.
Have a look at EFS Pro.
jje
If it's not .img you can restore by simply copying whole efs from backup to phone by root explorer
sent from the state where marijuana is NOT illegal !
I´ve rooted my s3 and now is my IMEI 004999010640000/01 and after that it is not possible to make calls,. I´ve read a lot of pages about restoring IMEI by EFS back up I have, but nothing still work. Can somebody help me??
EFS back up was created after rooting so maybe that the reason, why I cannot restore (restoring works but with false data of IMEI, is it write??) So have can I put my IMEI back without back up??
Thank you
Factory reset flash stock rom that fails it is a service centre repair.
The efs backup is in tar or tar.gz format ? If yes just unpack it using 7zip and copy paste efs folder contents from backup to phone efs folder ....
sent from the state where marijuana is NOT illegal !
You only rooted? Is that the FULL story? How did you root?
Hi,
I have a GT-I9100 SG II with no efs folder backed up.
I flashed the ROM once. however the IMEI has now changed to generic 00499.
When checked there is no .nv_data file present in the efs folder. Nor there is a nv_data.bin.bak file present for restoration.
I also tried to go on the stock firmware and re-rooted the phone, however still same IMEI number.
All functions work well. even I am able to make calls and receive it.
However somewhere I checked that normally nv_data.bin.md5 is used to verify the checksum of nv_data.bin and dump all the information in nv.log files.
When I check the nv.log files, it says
MD5 is turned on.
checksum fail
NV restored.
Does it have to do anything with thing generic IMEI 00499. Is there any way I can restore original IMEI for the phone (without a .bak file or .nv_data file).
Please help
No EFS backup = service centre or local mobile repair shop. Bit hard to restore something you don't have a backup of, dontcha think ?
MistahBungle said:
No EFS backup = service centre or local mobile repair shop. Bit hard to restore something you don't have a backup of, dontcha think ?
Click to expand...
Click to collapse
Yes but what's the guarantee that they won't mess up more.
Do they have any tool to create EFS folder...
To avoid further more issues, thought of taking guidance from senior folks here..
Any advice???
You mean what's the guarantee they won't mess the phone up more than you already have ?
Samsung service centres have equipment to 're-write' the IMEI to the device, and local mobile repair shops who aren't service centres might also have this equipment.
Hi everyone
i lost my IMEI, when i tryed recover that, i damaged EFS partition, days later i recover my imei but now i lost the capacity for create a PIN, Pattern or Password, Settings App are crash when i try to set some Lockscreen option. i has read and i think the problem is some file lost or damage into efs partition (folder).
so if somebody can give me a EFS Folder Backup for comparation files or try to replace my folder for backup.
if you want to help me you could be relax because yo can erase imei file,i dont want this file, it doesnt worry me.
my phone is a SM-g925i
Thank for everyone for any help!
Arnolcas said:
Hi everyone
i lost my IMEI, when i tryed recover that, i damaged EFS partition, days later i recover my imei but now i lost the capacity for create a PIN, Pattern or Password, Settings App are crash when i try to set some Lockscreen option. i has read and i think the problem is some file lost or damage into efs partition (folder).
so if somebody can give me a EFS Folder Backup for comparation files or try to replace my folder for backup.
if you want to help me you could be relax because yo can erase imei file,i dont want this file, it doesnt worry me.
my phone is a SM-g925i
Thank for everyone for any help!
Click to expand...
Click to collapse
You can´t just replace the imei with another efs.img , your safest bet it´s to take it to a guy with a z3x or octopus box so he can re-wirte your original imei, i have a phone with a similar issue, imei 35000000000 (invalid) that is common on modded phones, you can try flashing the original stock firmware with odin, but it will probably not fix the issue, now, if you just want the phone to recover the pin function, flash it but it wont fix the imei issue.
KrizzT said:
You can´t just replace the imei with another efs.img , your safest bet it´s to take it to a guy with a z3x or octopus box so he can re-wirte your original imei, i have a phone with a similar issue, imei 35000000000 (invalid) that is common on modded phones, you can try flashing the original stock firmware with odin, but it will probably not fix the issue, now, if you just want the phone to recover the pin function, flash it but it wont fix the imei issue.
Click to expand...
Click to collapse
only a ineed creciver the pin function! but i cant!