Hello
I have a xiao on a board and I need to rewrite the bootloader as it’s corrupted (why does this keep happening with Xiao?)
Anyway. I don’t want to remove it from the board. I wanted to ask if the usb C port on the Xiao has swdio and swclk in it? So I don’t have to unsolder the board and go underneath. I can instead use a breakout board from the usb C connector.
Thanks
Hi there,
Unfortunately NO. USB_C breakout won’t do it.
The pins are only on the bottom if is a Nrf52840 Xiao
Best to make a hole below the inside of the footprint of Xiao on PC board so you can always access them.
HTH
GL 
PJ
