Hi am very new to retro handhelds and even newer to MuOS but I have done a bit of flashing of firmwhere on rasberrypies. I baught a RG35XX plus, and am using a lenovo 64GB sd card that I have used for my camera.
The issue am running into is after putting in my timezone and it says “Downloading MuOs” it has a critical failure that says “Critical faliure - info/catalogue on mnt/mmc” and after trying again it says “Critical faliure - bios on mnt/mmc”
I have not tried an older verition because I really want the bluetooth ability that Pixi has over bannana.
I downloaded the iso for RG35XX plus, extracted it and ive used both rasberrypi imger and rufus to flash to the sd card and then sticking it in my device. If there is something more i need to do then I have not done it.
Love
Cloud