Possible Duplicate:
How can I restore IMEI code after factory reset?

I have an SGS2. During an OTA update the IMEI was deleted. I didn't have a backup of the EFS directory, as the phone wasn't rooted. However, I copied down the IMEI on paper beforehand.

Is there any way to restore the IMEI if I have the number?

  • 1
    Start here with this answer to an exact duplicate of your question.
    – zero2cx
    Sep 19, 2012 at 23:11
  • @zero2cx you should flag it as duplicate :)
    – roxan
    Sep 20, 2012 at 5:07
  • I don't think it's a duplicate, because these things are very phone-specific.
    – minicookie
    Sep 20, 2012 at 11:37
  • 1
    It's specific to Samsung Phones because they store the IMEI in the /efs/ folder
    – minicookie
    Sep 20, 2012 at 19:05

1 Answer 1


I've a Samsung Galaxy S1, but it will probably also work for you...

What I did, I flashed a Stock ROM via ODIN with Re-Partition enabled. (Don't know if it's necesseary) The stock ROM automatically regenerated my EFS-Folder and my IMEI... (See the Thread here)

This worked for me, but this might also help you.

I don't know any way to restore your IMEI, just because you know it. (It's written behind your battery anyways) The EFS-Folder which stores the IMEI is encrypted.

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