Cannot Erase MBR Page in NRF52840 Dongle using NRF52840 DK as debugger

[blebuddy]

Hi,

I'm using NRF52840 DK as a debugger of NRF52840 Dongle. And I'm using Segger Studio with NRF SDK.

I used the P20 header in NRF52840 DK as interface to the Dongle. I used the blinky sample (blinky_pca10059_mbr) in NRF SDK for

programming the Dongle. During the erasing of the chip, the jlink will stop when erasing the MBR Page (0x0000 - 0x0FFF).

I would like to ask a way to resolve the problem of the jlink stopping when erasing.

[blebuddy]

I tried nrfjprog --eraseall but I still encounter the problem.

[blebuddy]

No error codes after running --eraseall.

nrfjprog version:  10.19.0

SES version: 5.62

NRF SDK: 17.1.0

The jlink is getting stucked like this:

[Sigurd]

Are you able to flash the hex with nrfjrpog ?

nrfjprog --program blinky_pca10059_mbr.hex --verify