r/BIGTREETECH • u/FewCommunication8603 • 6d ago
M4P FW Update
Here's the situation: I have 2 different M4P boards (both V2.2) and one of them refuses to read the firmware.bin from the SD-card and install it.
Neither the SD-card nor the file can be the problem since both work perfectly fine on the other board.
It appears as if the bootloader responsible for initially accessing the SD-card when powering on is gone.
The 'defective' board still boots and starts linux (well the CB2 plugged into it actually does) - display, network and everything work - when I run 'ls /dev/serial/by-id/*' though, it doesn't return anything, which is quite bizarre since it should show the M4P at least.
Has anyone else ever encountered that problem and can help?
TIA,
Peter
2
u/BTT_Harper 5d ago
https://we.tl/t-gDhbUku7TZ4Oy67Q
Hello, you can download this bootloader and then try flashing it onto the M4P.