https://devzone.nordicsemi.com/f/nordic-q-a/65070/nrf52840-dk-is-not-powering-onDK is not powering ON suddenly. All the Power Switches are selecting properly (SW8 = ON, nRF Power source = VDD, SW6 = nRF ONLY) USB is connected to J2 Connector. Observations : VDD = 1.2V, VBUS(microUSB) = 5V LED5 = OFF(Not Turning ON), DKen-USTelligent Community 13Wed, 26 Aug 2020 16:55:34 GMThttps://devzone.nordicsemi.com/thread/266576?ContentTypeID=1Wed, 26 Aug 2020 16:55:34 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c2f104a6-68fe-46ce-8d2d-ca14ec4896a2S_Nirety<p>Thanks for the response,</p> <p>I got a new USB cable and now DK is <strong>powering ON</strong> and works<strong> properly.</strong></p> <p>Learning: Cables used for mobile charging will not work with DK after a certain period of time.</p> <p>Regards</p> <p>S Nirety</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/265893?ContentTypeID=1Mon, 24 Aug 2020 07:48:49 GMT137ad170-7792-4731-bb38-c0d22fbe4515:00498e69-7b0b-4b20-b47e-2ad798c0e5d6Jared<p>Hi,</p> <ol> <li>Please go through the list in <a href="https://devzone.nordicsemi.com/f/nordic-q-a/24592/my-nrf52-nrf51-dk-kit-doesn-t-work">this thread</a>. <ol> <li><span>Is the issue still persistent?</span></li> </ol> </li> <li>Could you try supplying the board through a coin cell or external supply header?&nbsp;<br /> <ol> <li>Is the LED turning ON?</li> </ol> </li> </ol> <p>regards</p> <p>Jared</p><div style="clear:both;"></div>