Sup M3 Custom Firmware (2025)

The installation process takes about 15 minutes. The risk is low if you back up your original SD card. The reward is thousands of playable games, save states, and a modern interface.

Been using this for 2 weeks, i'd say this is good enough for $15 sup m3 custom firmware

Use GUIFormat (for FAT32) to ensure your card is prepped correctly. The installation process takes about 15 minutes