Bootloader for Devia Control Board

[Belott]

Unfortunately, the bootloader on my only remaining Devia Robotics Control board is broken, so I'd like to reflash it. I know how to do that, but I need the right bootloader file.

I've already tried using the file "..\samd\1.8.14\bootloaders\zero\ samd21_sam_ba.bin " but that doesn't work, because the Devia Control Board is probably configured a little differently than the Arduino Zero.

I would really appreciate it if someone could tell me where I could find a bootloader file that fits to the Devia Board.