Nrf51Dk not detecting

RE: Nrf51Dk not detecting

Susheel Nuguru — Tue, 17 Dec 2019 07:55:31 GMT

then the device seems to be dead. It could happen if it was supplied with high voltage or if few of the pins are shorted with hand or any other conductor unintentionally.

RE: Nrf51Dk not detecting

Dhaval Dalvadi — Mon, 16 Dec 2019 16:01:39 GMT

Tried installing new jlink drivers
tried installing boot loader in nrf51DK
Reinstalled nrfgostudio

Still same issue
ERROR: Cannot connect to any nRF device. Please make sure a device is
ERROR: connected to the debugger and supplied.

RE: Nrf51Dk not detecting

Susheel Nuguru — Mon, 16 Dec 2019 13:41:32 GMT

When your device is dead or bricked, then the nrfjprog would NOT be able to make any communication to your device using the debug port. When this happens, nrfjprog throws a different error.

I would recommend you to uninstall your segger jlink drivers and re-install the latest ones since it seems the problem is inside the CDC communication of segger driver to your device. It DOES NOT SEEM that your device is dead/bricked yet.

RE: Nrf51Dk not detecting

Dhaval Dalvadi — Mon, 16 Dec 2019 09:59:25 GMT

When I execute this
nrfjprog --recover -f nRF51

LEd 5 starts blinking but recovering not getting complete

only getting this output
Recovering device. This operation might take 30s.

RE: Nrf51Dk not detecting

Dhaval Dalvadi — Mon, 16 Dec 2019 09:39:07 GMT

How can I fix it?

RE: Nrf51Dk not detecting

Susheel Nuguru — Mon, 16 Dec 2019 09:18:09 GMT

Hi Dhaval,

After removing the PPK from nRF51DK, if the kit is still not responding to nrfjprog on the command line in any way, then there is a large probability that your kit is being shorted or you could have programmed it with something that makes it go to deep sleep too early (without a wakeup source) , hence bricked