https://devzone.nordicsemi.com/f/nordic-q-a/101851/nrf52840-dongle-nrf-programmer-help-solvedI own the nRF52840 Dongle I downloaded nRF Sniffer for Bluetooth LE v4.1.1.zip straight from Nordic&#39;s site then extracted the zip, I also plugged in my dongle and ran the nRF Programmer app and I opened the hex folder inside the zip I downloaded, anden-USTelligent Community 13Fri, 04 Aug 2023 15:43:47 GMThttps://devzone.nordicsemi.com/thread/439961?ContentTypeID=1Fri, 04 Aug 2023 15:43:47 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4d874084-443b-43f3-87a9-d8f47fe78345Ingvar<p>&gt;&nbsp;<span>I was clicking the big white button not the hidden one at the very bottom -_-.&nbsp;</span></p> <p>Oh my god. Registered on the forum just to say thanks for this. I didn&#39;t even realise there *is* a 2nd button.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/436265?ContentTypeID=1Thu, 13 Jul 2023 12:59:20 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f15138f1-a359-466e-966e-be7d71e1ceb1HH257<p>Oh I figured it out. I was not clicking the correct button. I was clicking the big white button not the hidden one at the very bottom -_-. the dongle is flashing red and is in dfu mode. </p><div style="clear:both;"></div>