I tried for many times to convert my 3790US(converted to CHN2.20) to 3790Sg/My v2.50 with both RGN and GCD file and failed.
My 3790 keep rebooting loop.
I could go to all f/w but not with Sg/my 2.50 . ?!?!
How about you ??
PS :: Don't worry about rebooting loop ., just flash back with the old rgn you stayed and it will be ok.