Sup M3 Custom Firmware Verified -

Smoother frame rates for NES, Game Boy, and Sega Genesis titles.

Replaced with a stable, curated list of ROMs. sup m3 custom firmware verified

Delete pre-loaded duplicates and add your own ROMs via MicroSD. Smoother frame rates for NES, Game Boy, and

Once the image is written, the SD card will contain a new "boot" partition. Smoother frame rates for NES

Insert your original stock MicroSD card into your computer. Copy the ROMs and BIOS folders to your desktop. Set this card aside as a recovery safety net.

BalenaEtcher, Rufus, or Win32DiskImager. Step-by-Step Installation Guide