Without the correct BIOS files, the DSi console may not function properly or may not even boot up.
There are several sources where you can download DSi BIOS files. However, we must emphasize that downloading BIOS files from third-party sources can be risky, as they may be modified or infected with malware. dsi bios files download link
Many users who complain that "MelonDS is buggy" are actually using incorrect BIOS files from shady download links. Without the correct BIOS files, the DSi console