52840 dongle, program using nrfjprog, got this: There is no debugger connected to the PC.

[kfcube]

I am using 52840 dongle, program using this: nrfjprog --reset --program _build/nrf52840_xxaa.hex --family NRF52 --sectoranduicrerase, but I got There is no debugger connected to the PC. What shall I do? 

[Amanda Hsieh]

Hi, 

The reason that nrfjprog does not work with the dongle is because you do not have a built in J-Link on the 52840 dongle. I would recommend reading this blog post in detail.

-Amanda H.

[kfcube]

OK. Thanks. I have resolved this by using nRF connect Programmer app.

Thanks a lot.