I recently got a T637 and bought a T28 cable. Unlocked it using a uncustomized GPRS(?) file. Worked perfect after finding out I had to tap power to get the phone to boot.

I figure why not upgrade the firmware while I'm at it. But It' seems no sites I can find have the AVR file. I'v found 2 sites (+ this one) that have the AMR/GDRS files but no T637 R5A023 AVR in sight.

Can anyone help me find this file?!