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,
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.