I have my damage SGS3 mini (GT-i8190, spanish version) from 5 months ago.
My problems are:
- Corrupt IMEI (no generic, null/null, unknown)
- Unknown Baseband
- Corrupt Serial Number
I don't have backup of EFS folder/partition and any "nv_data" files. I tried more times with restart the device and install a new stock ROM and more things, but nothing. IŽll tried too, to find the correct box for repair this problems in my terminal but I don't know which is the correctly box (Asansam Dogle Box, JTAG Medusa, NsPro...).
Five days ago I give my cellphone to one thecnical support in my zone, but this Monday IŽll know the result, and theyŽll having problems when I was ask yestarday.
The other option that I have, is buy a new motherboard.