I had to downgrade my SG2 form JB to Gingerbread since I've lost my IMEI and I followed a guide that told me to do so.
As suggested, in Odin I specified the PDA file, the PHONE file and the CSC file, but I've forgotten to set the PIT file
, so the phone hasn't been re-partitioned!
Anyway, the process completed correctly, I flashed again my IMEI number and the phone is working normally since a couple of days.
The fact that the device hasn't been partitioned could lead to issues?
Obviously, I'll upgrade again to JB as soon as possible using the "one archive" firmware.