https://devzone.nordicsemi.com/f/nordic-q-a/72485/dongle-nrf52840-went-to-undefined-state-making-all-the-leds-on-the-boardHi, My nrf52840 dongle went to undefined state making all the leds on the board..Tried with different flavours of binaries but didnt got any luck the board remains in the same state.. please help me how to bring my board to normal stage. Reallyen-USTelligent Community 13Tue, 09 Mar 2021 08:38:54 GMThttps://devzone.nordicsemi.com/thread/298583?ContentTypeID=1Tue, 09 Mar 2021 08:38:54 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9e5145db-3e6d-4792-a448-f8862842f80aKenneth<p>If you are not able to find the solution on that page, then I recommend order an nRF52840-DK if you haven&#39;t one already, since that include a debugger that can be used for programming and debugging.</p> <p>Kenneth</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/298552?ContentTypeID=1Tue, 09 Mar 2021 04:08:11 GMT137ad170-7792-4731-bb38-c0d22fbe4515:26208a26-667a-4bff-9d7a-f9f868fb0c48thukeri<p>That didnt helped me</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/298383?ContentTypeID=1Mon, 08 Mar 2021 13:15:45 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0dee797b-594e-4895-a898-96968e72fbc8Kenneth<p>Check out:<br /><a href="https://devzone.nordicsemi.com/nordic/short-range-guides/b/getting-started/posts/nrf52840-dongle-programming-tutorial">https://devzone.nordicsemi.com/nordic/short-range-guides/b/getting-started/posts/nrf52840-dongle-programming-tutorial&nbsp;</a></p><div style="clear:both;"></div>