i installed my X-B.I.T yesterday and my Xbox Still booted and played. Today I flashed the bios and now xbox wont boot please HELP!!

you have like a zillion bank options on that chip, sure you don`t have a second bios that works, and if you havn`t why did you flash the bank you were using??

What error meassage are you getting ?

Does it boot with the chip disabled ?

Make sure you use the verify feature in the X-B.I.T flash software. It will let you know if you have a bad flash.

I use format option 5 i think, with 1 x 1MB and 4 x 256k banks. I filled the four 256k banks with M7, 4979, 4980, 4981. I have no use for the 1MB bank.

I would recommend the Xecuter2 4981 bios. And use the XBTool program to change the logo a bit, so you know its working.