nRF52832 DK Programmer / USB?

Question

Hi, 
 I got a brand new nRF52832 DK today and wanted to program it but the USB is not recognized at all therefore the nRF Programmer shows no programming option. 
 I connected the board, switched it on while pressing the reset button. Programming LED is blinking and if I press Buttons 1 - 4 the relating LED shows up. 
 "nrfjprog --ids" is not showing anything at all. 
 Other devices such as "nRF52840 Dongle" and "Thingy:53" are working fine on the same PC. 
 Could you tell me what to do in order to fix this behaviour? 
 Many thanks in advance. 
 Regards, Andreas

Andreas Schurz · Accepted Answer

I guess this was the issue - for some reason the bootloader was messed up. 
 Looks now like this 
 
 nRF Programmer is now also able to detect the device. 
 
 So I guess the issue is solved. 
 To sum the solution up: 
 1. Need to install Segger JLink Drivers > V7.94e and select "Install legacy USB Driver for J-Link" and uninstall the old one 
 2. Reboot 
 3. Switch DK-Board on and hold Reset-Switch 
 4. Immediately check for the Bootloader-Drive 
 5. Drag and Drop https://nsscprodmedia.blob.core.windows.net/prod/software-and-other-downloads/dev-kits/nrf5x-dk-files/j-link-ob-sam3u128-v2-nordicsemi-170724.bin to the bootloader drive 
 6. Switch DK board off and on 
 7. Check that COM-Port can be seen in device manager 
 8. Check availability in nRF Programmer

nRF52832 DK Programmer / USB?

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