Sup M3 Custom Firmware ((hot)) | CONFIRMED |

Installing turns a "shelf toy" into a legitimate daily driver for retro gaming. While it requires a bit of technical sleuthing to find the version compatible with your specific hardware revision, the payoff—a clean UI, better saves, and accurate scaling—is well worth the effort.

While the M3 scene is smaller than that of the Bittboy or Miyoo Mini, there are a few standout projects to look for: RetroMinUI sup m3 custom firmware