Hi, I program the XIAO via USB.
It happens really often that the XIAO somehow dies during programming. Afterwards it cannot be found via COM-port any more. It still has power, but I cannot programm it any more. Looks like the bootloader is detroyed?
It happened just again, I only hat the XIAO-ground connected to a Scope ground. No circuit connected, no load applied, I just programmed the blank XIAO via USB.
The port is OK, I use it to program other Arduinos.