Seeeduino XIAO SAMD21 Breaks When Powered by 220v Source

Products & Technology XIAO
46

I am not sure what causes the bootloader to be destroyed, but I am very happy that you were able to recover it.
If you used the method in the link below, then the bootloader area is protected and there may be no more bootloader corruption in the future.

If you could, could you please provide me with the following information.

  1. A bad charger breaks the new XIAO -------> you said Yes
  2. A good charger dose not break a recovered XIAO --------> you said Yes
  3. A bad charger breaks restored XIAO --------> ???
  4. A good charger breaks a new XIAO --------> ???