NRF51821 10001 not detected on Windows 7

[Marvin]

The 10000 dongle does get detected in nrfgo Studio but the 10001 board does not. There are no USB devices with exclamation marks or otherwise undetected when the 10001 is plugged in. In fact, the computer does not react at all when I plug in the 10001. No 'detecting device' or 'installing driver' popup at all.

The lights on the board do blink when I plug it in so I don't think the board is broken. And when I plug it into my linux machine, lsusb picks up its presence.

Ideas?

Edit: Device manager screenshot.

[Håkon Alseth]

Hi,

Just to rule out any hardware issues: Could you please check if there's a short between VCC_NRF and GND? This can be done by ohming on one of the GPIO headers. VCC and GND should be clearly marked on the PCB (if revision 2.0.0 or newer)

Best regards Håkon

[Anton Maes]

Measured 83 kOhm

[Anton Maes]

I've also opened up a discussion on the Segger forum since this could be some kind of driver issue. http://forum.segger.com/index.php?page=Thread&threadID=1853

[Anton Maes]

Turned out to be a faulty USB cable. It only supplied power but not communication. Swapped it out and immediately the board was recognized.