Sup M3 Custom Firmware 📢

Have you flashed your Sup M3 yet? Which OS are you running? Drop your questions in the comments below, and I’ll help you troubleshoot that first boot loop!

Insert the card into your SUP M3 and power it on. The first boot usually takes longer as it initializes the file system. Troubleshooting Common Issues sup m3 custom firmware

Open the back of the device if possible and look for the CPU markings. Search for "M3 [Chip Name] CFW" on forums like GitHub or Reddit (r/SBCGaming). Have you flashed your Sup M3 yet