Think I figured it out myself. On xqemu, I tested with cromwell + other + other + other On the real xbox it's cromwell + original + original + original So, MCPX run's xcodes from bank 0 and starts checking 2bl from bank 3 That's causing the issue. On the real xbox, the 2bl check doesn't fail (as it'...

I observe a strange behavour when I flash The Cromwell bios in bank 0 of my Tsop (1MB) The xbox is a type 1.1 with a sharp Tsop flash. I assumed, as it's a 256KB bios, that flashing it in bank 0 only should be enough. MCPX secret code executes the xcodes from bank 0 if I remember correctly and the c...