https://devzone.nordicsemi.com/f/nordic-q-a/61697/nrf52840-dongle-used-on-connect-desktopHi, I have nRF52840 Dongle(PCA10059), I try to develop on the nRF Connect Desktop. But this dongle can&#39;t update firmware on the nRF connect desktop. My operation below: Step1: The dongle to press the button of reset into the bootload mode. the reden-USTelligent Community 13Mon, 25 May 2020 23:19:20 GMThttps://devzone.nordicsemi.com/thread/251576?ContentTypeID=1Mon, 25 May 2020 23:19:20 GMT137ad170-7792-4731-bb38-c0d22fbe4515:467692a8-7be4-4e4c-872a-c7224cc4f273Simon<p>Have you tested the solutions provided in these threads:</p> <ul> <li><a href="https://devzone.nordicsemi.com/f/nordic-q-a/37429/nrf52840-dongle-connect">https://devzone.nordicsemi.com/f/nordic-q-a/37429/nrf52840-dongle-connect</a></li> <li><a href="https://devzone.nordicsemi.com/f/nordic-q-a/46367/pca10059-as-central-for-nrf-connect-for-desktop-windows-10">https://devzone.nordicsemi.com/f/nordic-q-a/46367/pca10059-as-central-for-nrf-connect-for-desktop-windows-10</a></li> </ul> <p>If that doesn&#39;t help, please tell me and I&#39;ll look into it.</p> <p>Best regards,</p> <p>Simon</p><div style="clear:both;"></div>