I flashed from my usb drive the other day, using ace's guide
Flashed to12 BTA after renaming file to .BIN. Despite editing the name in runme.bat wouldn't play, so I manually flashed using Ace's
AWDFLASH.EXE M629B_16.B01 /e /py /sn /wb /cd /cp /cc /cks
Which worked fine, thanks Ace

Luck