I have an issue with the 2 nRF52840 minis I ordered. I’ve soldered headers on both, and one, I can chalk up to user error even though I’m 80% sure there was a manufactured trace between VIN and GND. I cut said trace, but it had burnt out before I got to it in time.
The second one is more difficult. In the beginning, the boot drive came up just fine. I downloaded CircuitPython 6.2 and copied it over, then the problems began:
1. Power LED is solid when plugged in.
2. Boot drive only displays and pin 7 led blinks when:
a. I leave it unplugged for 5 minutes or so, plug it in, then double-click reset.
b. Only connects/displays drive/blinks for about 2 seconds before disconnecting/disappearing.
3. Any other time its powered, nothing comes up in Device Manager nor a boot drive at all.
4. I have tried factory reset, but with no luck.
Is there anything else to try/check for?