If an emulator did require a BIOS, downloading it would technically be illegal because the BIOS is copyrighted firmware owned by Microsoft. How to Set Up an Xbox 360 Emulator (Xenia)
You will frequently find websites claiming to host "Xbox 360 BIOS v3.2.4.rar" or similar files Scripps Ranch News . In the emulation community, these are almost universally flagged as scams, malware, or "survey-ware" designed to trick users into downloading harmful software. What You Actually Need Instead of a BIOS, successful Xbox 360 emulation relies on: xbox 360 emulator bios
On older systems (PS1, NES, GB), emulators often require a dump of this chip because the games directly call BIOS functions. If an emulator did require a BIOS, downloading
Many websites claiming to offer "Xbox 360 Emulator BIOS v3.2.4.rar" or similar files are often hosting malicious software, outdated files, or "click-wraps" designed for ad revenue. Since the leading emulator doesn't use these files, any site insisting you download one should be approached with extreme caution. Legality of Xbox 360 Emulation What You Actually Need Instead of a BIOS,
This is the gold standard for Xbox 360 emulation. It does not require a BIOS file. Instead, it uses a built-in software layer to simulate the Xbox 360 hardware and software environment.