Copy dsibiosdumper.nds to the _nds folder (or anywhere) on your DSi SD card 1.2.4.
Find a for dumping files from your own DSi. Troubleshoot NAND errors in MelonDS. Optimize your video settings for HD upscaling. dsi bios files download link
Many public download links host corrupted, modified, or incorrect regional variants of the BIOS. If the ARM7 and ARM9 dumps do not perfectly match the firmware version, the emulator will crash on boot, throwing vague initialization errors. The Safe and Legal Method: Dumping Your Own DSi Files Copy dsibiosdumper
The internal operating system code that contains the DSi Menu, system settings, and built-in applications. Optimize your video settings for HD upscaling
Rename the files if necessary to match the expected extensions ( .rom instead of .bin for the BIOS files). Open No$GBA, go to > Emulation Setup .
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Once you have downloaded or dumped your files, you need to place them in the correct directory of your chosen emulator. melonDS Installation Open melonDS and navigate to > Emu settings . Click on the DSi mode tab. Check the box that says Enable DSi mode .