i9300 IMEI repair, EFS backup
 

Can you tell me correct procedure for backing up EFS from good working handset? So incase after unlocking anything goes wrong with IMEI I can restore it easilly? And I need to backup anything else?


Br

I Guess you lost or Damaged your IMEI number?
Then follow this procedure brother

[HOW-TO][FIX] Repair your IMEI with QPST - updated w/ info - xda-developers

Hi,

Thanks for that fantastic thread, but my imei is still ok but im scared to unlock it and have a problem afterwards, so was wondering is there anything I can backup before attempting an unlock to avoid this kind of a problem?

Thanks

Currently not possible to make backup of EFS from this phone.

It is possible, but not with Octopus.
You will need the folowing apps:
- root
- busybox (from stericson)
- galaxy_s_unlock (from Helroz)

And with last app you cand back-up and even unlock your s3, but at first update it will be relocked (i think, i never tryed).
Or you cand use instead of Galaxy S Unlock you can use this [TOOL] Updated! 15/08/12 - EFS Pro v1.9.12 - Advanced '/efs' Backup, Restore, Repair! - xda-developers

I always do a back-up with the first 3 apps becouse of IMEI problems and trying to avoid them

Cheers, so what happens when we need to restore it, how is that done?

Thanks

Bouth apps do restore. Check the app. It has resotre button. It will copy the back-up over the current Efs partition.

s3 relock
 

Unlocked phone After update relocked Can unlock with octopus Samsung activation?

I have i9300 stuck on logo after wrong efs restore. I cant write the wright one now because its stuck on logo and i cant put it in debbug mode......any solution

Hello.
Please try to put the phone into Emergency (Download) Mode and make repair EFS, then re-flash the phone. To put GT-I9300 phone into Download Mode you have to perform the following steps:
1. Reconnect phone battery.
2. Press and hold "Volume - " + "Home" + "Power" buttons.
3. When phone turns on press "Volume+" button.