Seeed Studio XIAO nRF52840 Problem

Hi there,
Does the Xiao show up as a Drive? (BL mode) if so, Grab the Uf2 file for the RGB LED test in the
“Drag & Drop” test file thread. There’s a zip. DRAG the uf2 file to it , it will reset after it reloads anf cycle thru the RGB colors thus reloading the BootLoader image and code that is verified good. Looks to me the BootLoader is corrupted. or you code hit a memory boundary and messed it up.
YMMV
HTH
GL :slight_smile: PJ
:v:

https://forum.seeedstudio.com/uploads/short-url/p4M5q5b6GnF4Lhm3FzDRUNZBfHA.zip