Hi there,
Go try one of the DRAG and DROP files from the Thread Named 🤠 Xiao Expansion board drag & drop testing uf2 flash files
Grab the ZIP for the RGB LED tester.
Drop the Uf2 file on the Xiao in File explorer (bootloader) once it’s flashing the RGB unplug and replug and Identify the New com port. It should now allow you to upload without Bootloader mode.
Some of the older examples may nerf up the map of the flash & bootloader as well as if you send it Garbage code too it will happen. This tech cleans that right up. YMMV
HTH
GL 
PJ
