nRF52840DK board

[cwcheng]

Dear Sirs, hello!

I have a new version nRF52840 DK board.Main chip IC is N5340.But When I use external programing function(SWD_SEL,SWD_IO,SWD_CLK).

The nRF connect programmer will show me some error message(as below photo).How to solve this problem?

Thank you!  

cw

[cwcheng]

Hello Elfving,

Do you have the DK switches in the default position?-----Yes!

Are you able to flash the nRF52840 when the SWD connections are simply disconnected?-----Yes!

cw

[Elfving]

Is this how you've connected the PCB to the DK?

Regards,

Elfving