Xbox+bios+files+xemu

A: No. Xemu strictly supports unmodified retail BIOS . Custom modchip BIOS often remove security checks that Xemu actually relies on to synchronize components.

A: These indicate a missing hard drive or damaged dashboard. Xemu needs a virtual HDD image (usually 8GB) with the original Microsoft Dashboard installed. Search for "Xemu prepare hard drive image". xbox+bios+files+xemu

Here is the official manifest of required files (based on Xemu v0.7.122 and later): xbox+bios+files+xemu