Hello i have a Seeedstudio Xiao small form factor processor which i love but i have a problem with it i can no longer upload new arduino code to it even the usb doesn’t even work. I need to reinstall the bootloader but i just saw a forum on here on how to reinstall the bootloader. The problem for me is which pins do i need to reinstall the bootloader?
To complete that quest to save bricked XIAO, what is the definitive programmer + application to reload bootloader. I am using the dev board to expose the SWCLK and SWDIO but OpenOCD does not see the XIAO : flash page error. What do you recommend STLINK or JTAG ? ATMEL Studio or Open OCD or something else ?
Thks,
Frd