NRF52840 DK LED(5) flashes once, but device does not turn on.https://devzone.nordicsemi.com/f/nordic-q-a/97182/nrf52840-dk-led-5-flashes-once-but-device-does-not-turn-onAfter rummaging through the awful and extremely limited documentation relating to external programming using the NRF52840 DK (so I don&#39;t have to pay for the $700 scam device), I setup my device as best as I could understand the SDK documentation. Howeveren-USTelligent Community 13Mon, 28 Oct 2024 17:43:53 GMTRE: NRF52840 DK LED(5) flashes once, but device does not turn on.https://devzone.nordicsemi.com/thread/508235?ContentTypeID=1Mon, 28 Oct 2024 17:43:53 GMT137ad170-7792-4731-bb38-c0d22fbe4515:fce4c91e-3b57-41c2-8f32-1e73282b0ab5avijay<p>This started happening just now to me- does anyone have any help or advice. Mine is a NRF5340</p><div style="clear:both;"></div>RE: NRF52840 DK LED(5) flashes once, but device does not turn on.https://devzone.nordicsemi.com/thread/413267?ContentTypeID=1Fri, 03 Mar 2023 13:19:41 GMT137ad170-7792-4731-bb38-c0d22fbe4515:fb1cacbf-3539-440c-9de4-cf55a07998d2Priyanka<p>Hi,</p> <p>Sorry to hear that.&nbsp;</p> [quote user=""]I own 3 an NRF52840 DK, NRF52840 MDK Dongle and NRF52840 ItsyBitsy, and now I can&#39;t flash any of them...[/quote] <p>Do you mean to say that none of these seem to work?</p> [quote user=""]after trying to flash an Adafruit ItsyBitsy NRF52840 via NRF52840 DK, my&nbsp;NRF52840 DK will no longer turn on[/quote] <p>Did your DK work well before this?</p> <p>How did you connect in order to flash the Adafruit module? What is the J-Link version that you have? Also, what is your OS?</p> <p>Best Regards,</p> <p>Priyanka</p><div style="clear:both;"></div>