[TOOL]Backup/Restore EFS (IMEI) for SGNII

[dogmatism]

Anyone who has the error

The system cannot find the path specified.

The problem is adb.exe is out of date... you need to update it in newer android versions.

you can get it, just search xda for, Minimal ADB and Fastboot /... replace the adb files

adb.exe
AdbWinApi.dll
AdbWinUsbApi.dll

in the folder "files1"

 

[The Land of Smeg]

I don't know if I'm supposed to be using N7100_EFS_Backup_Restore_WIN.rar or SAMSUNG_N7100_EFS_BACKUP.zip

I am trying to use SAMSUNG_N7100_EFS_BACKUP.zip
It's not doing the tar backup:

Command: bin\adb shell su -c "busybox tar cZvf /sdcard/GT-N7105TADTGY_N7105ZHDMI1_R31D3017QCT_
EFS.tar.gz /efs"

Output:
unknown option -- Z
BusyBox v1.21.1-jb bionic (2013-07-25 21:23 +0100) multi-call binary.

Trying to backup with an old CM ROM before it is screwed up any further so busybox is likely out of date.

Also subsequent backups fail because filename is too long (keeps appending the variable) and fills the device SD card with backup files not being deleted after.

 

[Tdci]

Tar command allow gzip compression trough the -z argument (lowercase)

 

[fd99601]

Thanks!

I thought I had lost my 2nd device in succession owing to EFS issues, but your tool saved me the blushes. For those having EFS as IMG file you can get it restored using option 3 on clicking the executable in SAMSUNG_N7100_EFS_BACKUP folder.

Thanks a bunch! Now backing up EFS your way

 

[Kentthegreet]

May I know where I can download the efs.img file? I can't find it from the 3 files attached in the first page. TIA.

 

[justin6162]

May I know where I can download the efs.img file? I can't find it from the 3 files attached in the first page. TIA.

sorry I Uploaded my efs and they told me we can't use the same

 

[scrin378]

May I know where I can download the efs.img file? I can't find it from the 3 files attached in the first page. TIA.

You cant download it because this is a tool for backup...not a real efs which you can restore on your phone...if you dont have a real backup of your efs it wont work

here is my esf

He cant restore your efs...this is your efs and your only...it cant be two phones with same efs...he must have his efs...

 

[dr.ketan]

here is my esf

So you wants your device get banned?

Sent from my SM-N920I using xda premium

 

[justin6162]

Oh I didn't know that, let me go delete it

 

[Kentthegreet]

@justin6162 / All

Thanks, Sir. But yes I can't use it due to unique IMEI. I already have my EFS backup but still the IMEI is 004999 generic numbers. Question is, how can I edit my efs.img so I can append my real IMEI?

 

[01101001b]

Thank you so much!

I lost my imei nearly one year ago. An old battery hiccup made the "magic" to spoil the efs partition and kaput! no more imei. Since then I was reading and looking for solutions but unable to hit the nail.
I had made a backup (thank goodness!) but for some reason I only found errors when trying to restore it.
Long story short, your linux solution guided me to the final bit of information I needed to restore my phone from that "quirky" backup. And It worked. Amazing.
I've registered in xda just to say thank you so much! :victory: