Sounds like this solution worked for others. However, I ran into this, started with an older NRF SDK 2.5.3 , and immediately found any program I flashed would cause the device to no longer seem to be alive (no LED indicators, no com ports discovered, no other expected functionality). I also switched to 2.6.0 eagerly in hope it would help with the BLE Sense. No luck. Same result.
I also followed a few details here for zephyros, to set the BOOT DELAY: XIAO BLE (Sense) — Zephyr Project Documentation
So question:
- do I need to turn on other things for CDC support to work properly? USB drivers on at start? I found some references: xiao-zephyr-examples/console.conf at main · Cosmic-Bee/xiao-zephyr-examples · GitHub
- how can one restore the bootloader back to the factory? (which had arduino compatible uf2 )
Thanks in advance. I have had previous experience with the BMD-30 series of chips with custom boards and no issues using the same samples.