https://devzone.nordicsemi.com/f/nordic-q-a/69791/how-can-i-upload-the-bleimage_transfer_demo-program-on-the-latest-nrf52840-dongle-s140_v7-2I tried plenty of times to upload program on dongle from this site: NordicPlayground / nrf52-ble-image-transfer-demo But I got these types of errors as mentioned in attached images!! (check 1st image which is in SES) so, how can I upload this programen-USTelligent Community 13Tue, 22 Dec 2020 12:38:41 GMThttps://devzone.nordicsemi.com/thread/286285?ContentTypeID=1Tue, 22 Dec 2020 12:38:41 GMT137ad170-7792-4731-bb38-c0d22fbe4515:00f662d9-9184-4e08-a6f8-5d3d1ef383e7Umang Suthar<p>yes, I go through it already !! But my main concern of this program can&#39;t give me the desired output on this dongle although it&#39;s worked fine on the nrf52840-DK.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/286279?ContentTypeID=1Tue, 22 Dec 2020 12:20:58 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6a514381-fe22-4e0e-af60-4544713b205fVidar Berg<p>Hello,</p> <p>This error is reported because the application does not include the optional <span><a title="DFU Trigger Library (USB)" href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.0.2/lib_dfu_trigger_usb.html?cp=7_1_3_5_3">DFU Trigger Library (USB)</a></span> library. This just means that you have to press the reset button to put the dongle back into DFU mode, it&#39;s not a programming error.</p><div style="clear:both;"></div>