I'm having trouble to find what bios I should install on what version xbox. If I want to flash a chip like the xecuter 2.6. for a ver. 1.0 to 1.5 or 1.6 what bio's do I use? The v3.01 and if I want to flash a xecuter 2.6 for a 1.6b xbox do I use the v3.03? I just want to make sure before I go ahead and screw up a bad flash chip. I have to mess up and have to redo a flash chip again. It might also help other new beeeeees as well. Thank you for your help and time.