Sounds like u may have a 1.6b .
On the backup preinstalled is flashbios3.01 which does not work on a 1.6B
if u already have flashed with an x3 bios then boot to CFL and use this to upgrade your backup flash to 3.03.
If u still need to flash a hacked bios then u only have flashbios3.03 on the second 1M bank (off,on,off,off,off). Once booted to 3.03 change the switches to bank 1 (on,on,off,off,off) and flash an x3 bios to that (ver 3108)