What color are the LEDs? Green is the power indicator.
The orange LED should blink(ON and OFF). How is it?
Correct. The green power indicator is always on, no matter what program I write to the XIAO. The orange LED blinks on and off according to the “blink” code.
The 3.3V pin can only supply 200mA to the strip, have you reduced the number of LEDs enough that it is not a problem?
From the information so far, the conclusion is" The charger destroys the I/O pins of the XIAO".???
Why don’t you connect an LED to the destroyed I/O pin and see if an LED turns on or off?
I think that imagination alone is the limit of further analysis.
If you have any new information, please post it here.
I have fixed the issue. I burned the bootloader onto all the XIAO boards and used a different power source. All LED’s are working again.
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.
- A bad charger breaks the new XIAO -------> you said Yes
- A good charger dose not break a recovered XIAO --------> you said Yes
- A bad charger breaks restored XIAO --------> ???
- A good charger breaks a new XIAO --------> ???