nRF52DK does not enumerate as a USB device

[jdp]

On the Getting Started page, I do not see the USB described in Step 7. I do not see any device. The LEDs flash and the buttons light up LEDs 1-4 as described.

Thanks

[Mttrinh]

Hi,

Does this happen right out of the box? Can you check if you can see the device in nRFgo Studio or in the Device manager?

[Mttrinh]

Can you try a couple of things:

- A different USB cable

- A different computer

- Make sure you are using the latest nRF5x-Command-Line-Tools-Win32

- Are you able to enter bootloader mode? Tried to update the JLink Firmware?

    How to update the J-Link Interface MCU Firmware:

1. Power off the board
2. Hold the IF Boot/Reset button - keep holding it
3. Power on the board
4. The LD5 Led should be blinking (0.5Hz)
5. You will notice a new drive appearing in your Computer with label: BOOTLOADER
6. Copy the J-Link OB-SAM3U128-V2-NordicSemi 170724.bin file to the root of this drive - normal copy-paste operation. (The LD5 will start blinking fast)
7. Power off the board and the power it on again.