How to Recover IMEI number of Samsung Galaxy S2 and other Samsung Android Phones

Did you have ever noticed that customizing your phone by using various Custom ROMS to get a better interface and fast response is come with one major drawback.Well,major drawback or risk envolve to flash the ROMs is the changed in IMEI no of your device,this happened because EFS folder in your root folder gets changed while flashing the custom ROMs as the IMEI basically stored in ‘.nv_data file’ in Originally shipped EFS folder.

How to Recover IMEI on Samsung Galaxy S2

  • Backing up .nv_data file. and restoring the one which comes with the stock firmware.
  • To do this simply Download GSII-repair app ( It is an IMEI recovery Android application ) from Google Play ,open it and select save actual EFS folder option to recover your IMEI no on Samsung Galaxy S2,

recover imei no on samsung galaxy s2

GSII_repair app also allow us to take a backup of current EFS folder too.

How to recover IMEI on other samsung devices

  • To recover IMEI no for rest of the samsung mobile phones manually simply follow the official thread posted by posted by vaskodogamagmail on XDA Forum.

If you have any doubt,feel free to ask through comments below.

+Sushen Jamwal is a Technology enthusiast, Professionally an Engineer from Amity School of Engineering & Technology, New Delhi and a Man behind, He is known for his out of box ideas.His area of interest includes Coding, Writing, Wordpress, PHP, Java, Social Media and Reviewing Tech Gadgets. Sushen Jamwal on Twitter

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11 Responses to “How to Recover IMEI number of Samsung Galaxy S2 and other Samsung Android Phones”

  1. techne says:

    I agree major drawback or risk envolve to flash the ROMs is the changed in IMEI no of device. And this guide will definitely help to solve this problem.

  2. ankit prajapati says:

    when i tried to delet efs folder. its give me error that this is system folder, cant deleted

  3. ankit prajapati says:

    den, ?? ignore dat step nd continue to next one??


  4. ankit prajapati says:

    To anyone who might be interested, I have fixed the problem.

    i hv tried evrything but none is useful as below.
    its to simple. no more headache at all

    I had to root the phone, and install Busybox. Then I installed an app called GSII_Repair. In the app, theres an option to ‘Mount EFS on RW’. I did this, and after rebooting, it works! Back on the network, and now the IMEI number can be viewed again!

  5. sassystar says:

    I tried this but no luck. I still don’t have my imei back. Is there anything else i can do? Or is there something else you’re supposed to do that’s not written down here plainly?

  6. Eddy says:

    Hello i am really sick of this !! ive tried everything i am unsuccessful ! I have a korean m250 … in the start there was unknown baseband , no imei and there was a bar sign in notification area … Ive flashed the GT i9100 rom on it and copied the EFS folder to the Root and now Baseband is Visible I9100XXKI3 and IMEI is also there but its Android generated IMEI … not real … PLEASE SOME ONE HELP ME GET MY REAL IMEI BACK !!! i am working on this since last month !! and now i am really messed up with this phone !!

  7. vijay says:

    i have a samsung 5610k java based mobile .i tried hard reset ,it deleted my imei no. and no sim is working in it,no network is coming,how can i get back my imei no. in my mobile and imei no. is also written on back of my mobile. PLEASE TELL ME SOLUTION>

  8. Mamun says:

    Eddy.Your prob is solved? My phone is samsung galaxy s2 i9100 its imei is not shown.Can any one help me?

  9. vijay sharma says:

    Sir i have used cwm mode for flashing the custom rom after it i have lost my imei no and wifi ip and bluetooth adress cell is samsung galaxy y 5360 plz tell me how to get it back .proper methotod plz..

  10. Kaushik says:


    I was able to restore IMEI using the S2 repair tool when the fake IMEI was showing up. But after the phone got switched off once, the null/null issue came up again and even the fake imei does not show up. Is there a way to make the fake imei come up so that I can use the S2 repair?

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