[TOOL] Backup & Restore EFS (IMEI) for Samsung Galaxy Note 2 GT-N7100 / S4 GT-I9500

AHLASSICH · Jul 2, 2013

Backup EFS

ayfon said:
its very easy, u can unrar with winrar... go to "efs_backup_restore_windows_scripts_v3" folder and click on "efs_backup.cmd" , on your phone will ask to superuser grant thats all.

I downloaded a program called "7 Zip" and extracted the script. This is probably a stupid question but where do you run the script? Tried the CMD prompt and the script will run but it does not do anything to the phone. It just runs on the PC and returns an error "file not found". I did have the phone connected in download mode but nothing happened.

Oh, I just read that you have to give root permission to ADB. Apparently you have to run the script in ADB?

Where do I get ADB and how do I run the script in it? Step by step instructions would be much appreciated.

ayfon · Jul 2, 2013 at 10:08 PM

AHLASSICH said:
I downloaded a program called "7 Zip" and extracted the script. This is probably a stupid question but where do you run the script? Tried the CMD prompt and the script will run but it does not do anything to the phone. It just runs on the PC and returns an error "file not found". I did have the phone connected in download mode but nothing happened.

Oh, I just read that you have to give root permission to ADB. Apparently you have to run the script in ADB?

Where do I get ADB and how do I run the script in it? Step by step instructions would be much appreciated.

you dont need download mode, connect usb to your phone and run the script , there will open cmd command prompt and than on your phone will come popup of root permission on your phone give easy grant after 10 second backup ready in the folder from script. sorry for english.

AHLASSICH · Dec 15, 2012 56 0 0

EFS Backup

The script appears to work on the Samsung Galaxy Note II SGH-I317 (ATT).

It put a file called efs.img into the same directory as the backup.cmd file. That is fine.

I am comfused about where it put it on my phone. I performed a search for efs.img and found it in two places. Is that correct.?

I found it at /data/media/efs.img and also /mnt/sdcard/efs.img. The time stamp corresponds to the date and time that I did the procedure.

Is it working as intended or is something amiss?

Thanks a bunch!:good:

examiner · Jul 3, 2013 at 4:30 AM

thank you for this ive managed to back-up my efs to my computer..Working on PACMAN n7100 running latest nightly ..now i have 2 back ups..one in my phone and in my pc..thanks

kfyros · Feb 7, 2008 15 2 0

Well ,the backup cmd,
didn't copy the file on the working folder on the pc,
so i found it in the sdcard folder of the smartphone (which is the built in storage on samsung devices),
and copied it my self .

The file is 20 megabytes.

Probably some access rights issue..

tallus · Nov 15, 2009 10 1 0

I'm trying to do a restore using the script, but keep getting the same error message:

Press CTRL+C to cancel

'CHOICE' is not recognized as an internal or external command,
operable program or batch file.

--- Push efs image "efs.img" to phone "/sdcard/efs.img" ---
The system cannot find the path specified.

--- Restore efs image "efs.img" from phone "/sdcard/efs.img" ---
The system cannot find the path specified.

--- TRY KILLING ADB DAEMON / EVENTUALLY SHOWN ERRORS BELOW CAN BE IGNORED
ERROR: The process "adb.exe" not found.

--- RESTORE SCRIPT IS FINISHED

Your EFS partition is restored from "/sdcard/efs.img"

For any feedback or when having problems feel free to contact me at XDA.
Please include also your phone model and Windows version if you have problems.

Website: http://forum.xda-developers.com/showthread.php?p=41152827
Press any key to continue . . .

This is driving me up the wall at this stage.

underlines · Jul 26, 2013 at 12:25 PM

Is it possible to backup the EFS from an old Samsung Galaxy S2, and restore it on a new phone like the Note2 or Note3?
So we could have a spare EFS backup in case there's a problem with a new phone...

My guess is that the EFS files have an identical structure on all Androids and don't change with different models/manufacturers.

herege · Aug 6, 2013 at 7:29 PM

Hello,

I have a tar.gz file with my EFS backup and not a .bin one.
Can I use this script to make the restore or what is the best method to restore my IMEI in my International GT-N7100?

Thanks in advanced

HassanM · Aug 20, 2013 at 9:26 AM

Hi friends....

Im really confused here.... I downloaded the zip file (340kb) and have it on my desktop... When I use WinZip to extract the files, it gives me an error... However when I double click on the file, WinZip Window opens and shows me 5 files in it ; Adb.exe , AdbWinApi.dll, AdbWinUsbApi.dll, efs_backup.cmd and efs_restore.cmd.

Plz advise...

Thanks in advance

mw86 · Aug 21, 2013 at 1:18 AM

HassanM said:
Hi friends....

Im really confused here.... I downloaded the zip file (340kb) and have it on my desktop... When I use WinZip to extract the files, it gives me an error... However when I double click on the file, WinZip Window opens and shows me 5 files in it ; Adb.exe , AdbWinApi.dll, AdbWinUsbApi.dll, efs_backup.cmd and efs_restore.cmd.

Plz advise...

Thanks in advance

Now that you have your efs backed up since my tip to use winrar to extract worked, could you leave other users any tips that would help while doing this process.

HassanM · Aug 21, 2013 at 9:20 AM

mw86 said:
Now that you have your efs backed up since my tip to use winrar to extract worked, could you leave other users any tips that would help while doing this process.

Sure mate.... :thumbup:

Sent from my GT-I9500 using Tapatalk 4 - Hassan K. Malik

zmadaric · Sep 9, 2013 at 9:35 AM

It works with Samsung Galaxy N5100, Galaxy Note 8.0

rakeshtiw · Sep 18, 2013 at 3:30 PM

tallus said:
I'm trying to do a restore using the script, but keep getting the same error message:

Press CTRL+C to cancel

'CHOICE' is not recognized as an internal or external command,
operable program or batch file.

--- Push efs image "efs.img" to phone "/sdcard/efs.img" ---
The system cannot find the path specified.

--- Restore efs image "efs.img" from phone "/sdcard/efs.img" ---
The system cannot find the path specified.

--- TRY KILLING ADB DAEMON / EVENTUALLY SHOWN ERRORS BELOW CAN BE IGNORED
ERROR: The process "adb.exe" not found.

--- RESTORE SCRIPT IS FINISHED

Your EFS partition is restored from "/sdcard/efs.img"

For any feedback or when having problems feel free to contact me at XDA.
Please include also your phone model and Windows version if you have problems.

Website: http://forum.xda-developers.com/showthread.php?p=41152827
Press any key to continue . . .

This is driving me up the wall at this stage.

I got the same error when I tried to backup efs. I realised my efs_backup file was too deep in sub-sub-sub directory structure in windows using long file name for directories. The problem was solved and successful EFS backup taken once i moved the EFS_Backup folder to "c:\" in my win7 OS. My device is Note2 N7100.

tallus · Nov 15, 2009 10 1 0

rakeshtiw said:
I got the same error when I tried to backup efs. I realised my efs_backup file was too deep in sub-sub-sub directory structure in windows using long file name for directories. The problem was solved and successful EFS backup taken once i moved the EFS_Backup folder to "c:\" in my win7 OS. My device is Note2 N7100.

Thanks for the reply.

I ended up returning the phone to the Samsung repair centre to have it repaired. They quoted the problem as a "calibration" issue, and didn't charge me so I'm happy with the outcome.

oldmanhp · Sep 27, 2013 at 3:30 PM

It works with Samsung Galaxy GT-i9152, Galaxy Mega 5.8

inamie · Oct 7, 2013

oldmanhp said:
It works with Samsung Galaxy GT-i9152, Galaxy Mega 5.8

it works for me too on Mega 5.8...but the size of efs.img is only 256kb. Is that correct?

for note 2 is about 20MB..

-------------------------------------------------------------------------------------------------------------------------

using emulator on phone:
mount > /sdcard/mount_info.txt <---- read text on internal memory and get info mmcblk0p? for efs

su
dd if=/dev/block/mmcblk0p?? of=/mnt/sdcard/efs.img <----- this will backup efs.img on phone.
20 MB ~ 20.480 kb

Or

On PC
edit script "/dev/block/mmcblk0p3" to "/dev/block/mmcblk0p??" youll get the efs.img for your device on PC.

*/dev/block/mmcblk0p17 for my Mega 5.8 (20 MB ~ 20.480 kb).. hope this is correct.

omdevsinh · Nov 8, 2013 at 2:54 PM

How to use this script please answer? ???

Sent from my GT-N7100 using XDA Premium 4 mobile app

ekunagba · Nov 12, 2013 at 1:15 AM

lskwl said:
This is a simple script, to backup and restore the EFS / IMEI partition of the N7100 and other Samsung phones under Windows OS.

It is tested by me on a Galaxy Note 2 / GT-N7100 under Windows 8, but reported by users to work also for other phones, see details below.

Please let me know, if its also working on N7105, S3 or other Samsungs

See the attachment file and let me know, if it is useful to you.

Requirements before running the scripts:

Developer Options -> USB Debugging must be enabled

Phone must be rooted and root access given for ADB Shell access

Phone Drivers must be installed correctly on your OS

Connect the phone by USB and run one of the scripts

Reported Devices by users which are working:

Galaxy Note 2 GT-N7100

Galaxy S4 GT-I9500 (reported by "iznee", thanks)

CHANGELOG - SCRIPTS LAST UPDATED 2013-05-11

v3 - Updated text output of the scripts

v2 - Updated ADB binary files

Hit the THANKS button if you like it!

Why my scripts?

I was inspired by batch scripts of xda user "as i9000".

But his "Windows" scripts did not satisfy me, because there where file not found issues, and in my opinion missing checks, that made me build up my own scripts from scratch...

Great, backed up successfully. It first gave an error message but succeeded on second trial!

hafridi · Jan 31, 2014 at 4:03 PM

I know this might be construed as Grave Digging but I wanted to say that this is one hell of an awesome tool!

92MB · Jul 20, 2009 46 0 0

EFS Backup !

Hi, I have been trying to backup and I get this answer below : Also I never get any notification from SU to grant permision. What I am doing wrong ?

BACKUP of EFS for Samsung Galaxy Note 2 - GT-N7100

Press any key to continue . . .

'RESTORE' is not recognized as an internal or external command,
operable program or batch file.

--- START ADB DAEMON AND WAIT FOR DEVICE
The system cannot find the path specified.

--- Backup efs image to phone sdcard ---
The system cannot find the path specified.

--- Pulling backup "efs.img" from phone to computer ---
The system cannot find the path specified.

--- TRY KILLING ADB DAEMON / EVENTUALLY SHOWN ERRORS BELOW CAN BE IGNORED
ERROR: The process "adb.exe" not found.

--- ERROR OCCURED

The backup of your EFS partition could not be created.

Please contact me by xda developers and post this output with an explanation
of what you exactly did. Include also your phone model and Windows version.

Website: http://forum.xda-developers.com/showthread.php?p=41152827

Press any key to continue . . .

[TOOL] Backup & Restore EFS (IMEI) for Samsung Galaxy Note 2 GT-N7100 / S4 GT-I9500

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