Once I try to connect nrf52-dk development board to a personal computer, using a micro USB cable, once the USB is detected from the PC, it instantly reboot without any reason. I tried with two different PC and with two different USB cable and with two different nrf52-dk board (nrf6827 rev 2.1.0 2020.35). I don't know which is the reason. I tried also using an USB hub (with and without external power supply), and the issue seems not to be related to the power supply itsels but related to the detection of the USB.
Which can be the reason? I already installed the segger embedded studio, but the issue still there. Please let me know.
best regards