Today I installed a 2.6CE into a 1.0 using the pin header method. Powered it up, it seemed to be working OK. M$ bios is still working also. The hard part was out of the way, all was looking good so far.
I then downloaded 4981 BIOS and burnt it to a CDRW (1mb) . The XBOX loaded the BIOS from the CD ok, and it flashed with no errors. Immediately after finishing flashing, its like the chip just DIED. It no longer boots when the chip is switched to ON. (When chip is switched off, the box still works OK) When powering the box up with the chip on, the XBOX turns on and off a couple of times proceeded by red flashing light.
Can anyone suggest what I might have done wrong here? And, any ideas on how to fix it???