While 95% of games work fine with HLE, there is a stubborn 5% of titles—often early release games or titles using unconventional memory management—that will crash, freeze, or fail to boot without the actual BIOS instructions. Having the real bios7.bin increases compatibility to near 100%.
“To run the DSi you need both the DS and DSi BIOS files. Make sure they are in separate folders.” Reddit · r/EmulationOnAndroid · 1 year ago dsi bios7bin best
Many modern emulators have "High-Level Emulation" (HLE) built-in. This means they simulate the functions of the bios7.bin without needing the actual file. So, why is using the real file considered the "best" practice? While 95% of games work fine with HLE,