Sup M3 Custom Firmware ((new)) Jun 2026

Not full CFW, but a cleaned-up stock image with the cruft removed.

Download a tool like BalenaEtcher or Rufus to write the firmware image to your card. sup m3 custom firmware

For the tinkerer on a budget, the SUP M3 running custom firmware offers an incredible amount of fun for a pittance. With an active community continuously improving the software, this little handheld will keep surprising you long after you first power it on. Not full CFW, but a cleaned-up stock image