Hi, i am facing a problem with my s3 mini GT-I8190 there is no imei when i go to settings under status the imei is unknown when i dial *#06# it shows null i restored my efs but no change i took a backup from working s3 mini and restored to my phone it is still null in efs ther is no nv_dta.bin file i looked in another working phone from i took backup that phone also don not have nv data file i am curious that how that phone works wihtout that nv_data.bin file please have look in your efs and tell me that you have the file or not because i think s3 mini works with that
[Q] s3 mini missing imei help
- Thread starter qasim799
- Start date
i hope it helps you a little 
How you can see one of my uploaded screenshot, is in the imei folder a file with the name "mpe_code.dat". How much bytes does it taken in your efs/imei folder?
Which app or windows program you used for backing up your efs folder?
Maybe can ADB restore your efs folder but i'm NOT sure if it works.
