Recovery your IMEI in 9 step PROCEDURE

[kanniappan]

If you did not make any backup of your  EFS folder, and your IMEI is messed up, this could be your solution to  recover your lost IMEI. NOTE THAT AT LEAST YOU MUST HAVE THE SHIPPED  ORIGINAL EFS FOLDER ON YOUR PHONE ( even if you didn't make a backup of  it yet and even it's messed up ) FOR THIS METHOD TO WORK

Restore your phone's firmware to it's original PDA, Phone and CSC, rooted it with CF-Root, and then done this procedures below

You must have:
-Root
-Root explorer for copying files to and from EFS folder
-Android SDK for the ADB tools or Terminal in your phone.


It is interesting to know that the IMEI is stored in ".nv_data" file in   ORIGINAL SHIPPED EFS folder too, so you just have to do these:

1) make a copy of your EFS folder to your sdcard using root explorer and   then make a backup of the folder to your computer [ to have another   copy if you had to format sd card sometime ]

2) delete the EFS folder (BE SURE YOU HAVE BACKED IT UP IN A SAFE PLACE AS SAID IN STEP 1) from the root of your phone using root explorer.

3) reset the phone, after that, go to the root, and you can see that the   EFS folder is still there, don't make any mistake, this EFS folder is   new and generated by the android OS.

4) go to EFS folder using root explorer, and delete "nv_data.bin", "nv_data.bin.md5".

5) go to your backed up EFS folder on your sdcard, copy the "imei"   folder to the EFS folder at the root of your phone, then again go to the   backed up EFS folder at yout sdcard and copy  the "   .nv_data   "  file  to your EFS folder at the root of your phone using root explorer,  NOTE:  the dot in first of nv_data is not a mistake, copy the ".nv_data"  file.

6) make another copy of the ".nv_data" file in EFS folder in your phone, so you would have 2 copies of ".nv_data" in EFS folder

7) rename one of ".nv_data" files to "nv_data.bin" and another one to "nv_data.bin.bak"

at your PC open CMD at the ADB tool path, or run Terminal at your phone enter these commands:

      adb shell ( use this command of you use ADB, if you're using terminal, skip this line )
      su ( ALLOW THE MESSAGE CAME AT YOUR PHONE's DISPLAY BY SUPERUSER PROGRAM )
      chown 1001:radio /efs/nv_data.bin

9) reset your phone.... after that you have your original IMEI. you can check your IMEI by dialing *#06#.