https://devzone.nordicsemi.com/f/nordic-q-a/49107/my-desktop-can-t-appear-j-link-debuggerHi, I am new at programming. I am trying to program nRF51822 DK. But My Desktop can&#39;t appear J-Link Debugger as a USB drive. I read some posts about that but I didn&#39;t get it.en-USTelligent Community 13Fri, 28 Jun 2019 12:30:24 GMThttps://devzone.nordicsemi.com/thread/195359?ContentTypeID=1Fri, 28 Jun 2019 12:30:24 GMT137ad170-7792-4731-bb38-c0d22fbe4515:eb0581aa-395e-4169-9d93-d4ebf4c0cb43Edvin<p>Hello,</p> <p>Does the DK appear on <a href="https://www.nordicsemi.com/?sc_itemid=%7BB935528E-8BFA-42D9-8BB5-83E2A5E1FF5C%7D" rel="noopener noreferrer" target="_blank">nRF Connect for Desktop</a>?</p> <p>Can you check that the power switch on the DK is in the ON position? Are any of the LEDs on the DK on or blinking?</p> <p>Can you try with another USB cable? Some USB cables are charging cables only, and doesn&#39;t have the USB data cables. You can test the cable with a phone. If the phone appears, the cable supports data transfer.</p> <p>If none of the above works, let the DK be plugged in for a while, and see if it comes after a while. It may be that your computer uses a bit of time to install some drivers the first time you connect it.</p><div style="clear:both;"></div>