Thanks @Baozhu.
I was able to unbrick both XIAOs using SWD by re-writing bootloader. I will leave the SWD pins available on my development board so that I can recover from this situation again.
Thanks @Baozhu.
I was able to unbrick both XIAOs using SWD by re-writing bootloader. I will leave the SWD pins available on my development board so that I can recover from this situation again.