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[SOLVED] nRF52832 DK bricked?

My nRF52832 DK will no longer respond to J-Link downloads. 

It seemed to start after I erased the target from Segger IDE.

Now it states that the file is downloaded, but on debug it stops at FEFEFEFE.

Is there a hex file I should download to the DK to restore it?

[SOLVED]

When one uses Segger IDE to erase a device, it whacks the entire device.

This restores it (using s212):

$ nrfjprog -f NRF52 --program ANT_s212_nrf52_5.0.0.hex --log --chiperase
Parsing hex file.
Erasing user available code and UICR flash areas.
Applying system reset.
Checking that the area to write is not protected.
Programing device.

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