https://rayshobby.net/docs/os_manual.pdf
the manual says to not re-program the fuse bits.
Page 12
Do not re-program the fuse bits on OpenSprinkler v1.2 and above, as they have built-in USB programmer and are already programmed with the correct fuse bits.
But even if i broke the rules and wanted to do it, I don’t see any documentation how to reprogram the fuse bits? Can you point me in the right direction?
How could something like this happen? Is the OS fixable?