Hi again, thanks another time for helping me out with my stupidity. I was soldering all day on Sunday. I removed the resistor yesterday and everything works fine now. :D So if anyone wants to know: Vacuum of better than ~ -100kPA (still low vacuum) for two week is enough for a MSL3 device to undo a ...

Thanks a lot. I missed that.
I copied the schematic from the dev-kit. But missed that that this Res wasn't fitted.

Hello, Me and a friend of mine are working on a LED-Juggling ball. We are just now in the prototype phase trying to get our own HW operational. As an electrical engineer with quite some experience in HW design, I'm responsible for designed of the internal PCB (LDO, Bat ctrl, USB/UART bridge, ESP32-P...