Hi We are using the Nordic Semiconductor developer boards (nRF52 DK) with onboard j-Link often in our project. In the last months we observed multiple times that the serial communication over the VCOM on this j-Link is blocked somehow. Only a reset could release this blocking state. We tried a lot to find a solution to force the j-Link VCOM to reset the hardware flow control, but nothing could fix this behavior so far. Today I've found this abondoned thread (Link) in your forum, that could exact…