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program the default DFU boot loader as per factory outlet.

Goodday all,

I have a few nrf52840 dongles that is not being picked up by the usb anymore. I have been looking for ways to reload them back to "factory defaults" but cant find an exact procedure. 

just to mention the small reset button does not do anything at this stage. I do have a DK board and cable. 

I presume I need to do it through the DK but im worried  doing it incorrectly will also render my DK non operation-able

This is how I see it : 

1. connect dongle to DK kit via 10 pin cable

2. open nRF52go studio and select "program bootloader" tab

3. Which hex file should I choose? there is a few

4.  I  to bridged pin 1.10 with ground and keep the reset button pushed.

Will this work?

If not please direct me to a link with the procedure Slight smile

thanks in advance

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