NRF52833DK On-board SEGGER J-Link debugger/programmer

[nbyte]

Hi,

Could you please tell me, what should I do if the NRF52833DK On-board SEGGER J-Link debugger/programmer cannot recognize

thanks

[nbyte]

Device Manager does not respond to either accessing or unplugging the development board

[niebert]

Do you see lights on the board when you plug it? There are some switches which you may have put in a bad position.

[nbyte]

I have two development boards, one is normal, compared the two development boards, the switch position is the same. The JLINK indicator that does not recognize JLINK is not on, but the nRF52833 chip is working properly

[niebert]

That leaves IMHO opinion two possibilites:a hardware problem or a problem with the programmer firmware. To find out which, you probably need an external programmer that you can couple to the programmer MCU via SWD.