For best results in xemu, some users suggest renaming the file to complex_4627v1.0.bin .
It is the primary recommendation for xemu users because unmodified retail BIOS versions currently cannot boot games due to unimplemented DRM functions in the emulator. How to Use Complex 4627 v1.03.bin
Once the BIOS, Boot ROM, and HDD image are linked, reboot the emulator. You should see the standard Xbox boot animation, though you may need a separate dashboard UI to browse files. Where to Find the Download
To use this BIOS for emulation, you typically need a specific setup involving multiple files: The complex_4627v1.03.bin file. MCPX Boot ROM: Usually mcpx_1.0.bin .
If everything checks out, the upgrade can be considered a success.