I am having no luck finding firmware for the T637 and my phone is barely useable. Can anybody help me out by posting the band-lock file and the ARM+AVR+GDFS? The problem is an SE T637 that came from an idiot eBay retailer with T630 firmware installed and the GSM bands locked to GSM900/1800/1900 (no 850Mhz band) and various other features not working. I am hoping a full reflash and the correct band-lock file will restore functionality. I have the terminator dongle. Thanks much, -SG