ok i modded a xbox with x2 2.6 .i got the bios 4983.06 i have treid 3 different guides to burn my bios disc and all have failed . the drive must be reading the disc because the cd label shows up then says NO BIOS UPDATE HALTING ive packed bios to 1mb and added a dummy 300mb i dont know if this is my problem its only one i can think of is when i click on bios properties the file type says AVG UPDATE could that be it i dunno please clarify for me because i have little hair left