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[guide] backup and restore efs partitions

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kaiodduarte

Senior Member
Dec 1, 2014
113
91
Hi Folks!

It is a simple guide to backup and restore efs and others partitions in your device, i use to backup IMEI and avoid " emergency calls only ".

Requirements:

Guide (BACKUP):
  • Open EFS Professional Backup and wait to check some requirements, then go to Backup tab;
  • In "Devices Filters" select 'All partitions';
  • In "Devices Partitions" choose: modem, efs, modemst1, modemst2, fsg, fsc, backup, dbi, ddr and pad [modemst1 and modemst2 for dual sim devices];
  • Then press backup button and save this file :D.

Guide (RESTORE):
  • To restore just find file in "Backup Archives" and press restore button.

Method 2 thanks for @jackeagle:
  • Open terminal emulator and write: su
  • Allow root permission if asked
  • Write this: dd if=/dev/block/mmcblk0p11 of=/sdcard/efs.img bs=4096
  • Look at your internal storage for efs.img (14 mb)
If saved your device don't forgot press thanks button :)
 

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Last edited:

jackeagle

Forum Moderator / Recognized Dev / Dev Relations
Staff member
Apr 11, 2013
3,415
9,164
XDA
Hy, has maybe anyone a EFS file for a S5 mini duos? I would be very happy... tnx

Do not use other Device EFS Partition .. IMEI is unique for every device and every device which is manufactured will be given different IMEI no hence you cannot use any other device IMEI its against the law... if you have not done backup of efs partition then you may have to take your device to your Samsung Service Center and they will repair it for you .. :)
 

jukl

Member
Sep 30, 2009
20
4
heloo , my problem

In "Devices Partitions" choose: modem, efs, modemst1, modemst2, fsg, fsc, backup, dbi, ddr and pad [modemst1 and modemst2 for dual sim devices];

My phone has only this item :
bota0
bota1
efs
m9kefs1
m9kefs2
m9kefs3
carrier
param
boot
recovery
ota
cdma-radio
tombstones
tdata
persdata
reserved2
system
cach
hidden
userdata

Where I have a problem ?
I do not see why modem, efs, modemst1, modemst2, fsg, fsc, backup, dbi, ddr and pad ?
thx you for your help
 

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  • 6
    Hi Folks!

    It is a simple guide to backup and restore efs and others partitions in your device, i use to backup IMEI and avoid " emergency calls only ".

    Requirements:

    Guide (BACKUP):
    • Open EFS Professional Backup and wait to check some requirements, then go to Backup tab;
    • In "Devices Filters" select 'All partitions';
    • In "Devices Partitions" choose: modem, efs, modemst1, modemst2, fsg, fsc, backup, dbi, ddr and pad [modemst1 and modemst2 for dual sim devices];
    • Then press backup button and save this file :D.

    Guide (RESTORE):
    • To restore just find file in "Backup Archives" and press restore button.

    Method 2 thanks for @jackeagle:
    • Open terminal emulator and write: su
    • Allow root permission if asked
    • Write this: dd if=/dev/block/mmcblk0p11 of=/sdcard/efs.img bs=4096
    • Look at your internal storage for efs.img (14 mb)
    If saved your device don't forgot press thanks button :)