How to start application when the device is under DFU bootloader mode?https://devzone.nordicsemi.com/f/nordic-q-a/36194/how-to-start-application-when-the-device-is-under-dfu-bootloader-modeHi, I am working on my nrf52840 dongle and it looks really cool to me. I just found an issue that, when my dongle enter DFU mode using DFU trigger, I can not return to the application(If I do not want to upload new firmware, eg, I clicked cancel inen-USTelligent Community 13Wed, 11 Jul 2018 00:52:21 GMTRE: How to start application when the device is under DFU bootloader mode?https://devzone.nordicsemi.com/thread/139647?ContentTypeID=1Wed, 11 Jul 2018 00:52:21 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c7710236-2192-4362-a6b0-72ef7884097anine-fox<p>Hi Terje,</p> <p></p> <p>Thanks for your reply! Following the guide, I suppose the command is:</p> <table class="doxtable"> <tbody> <tr> <td colspan="1" rowspan="1"><a class="el" href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.0.0/lib_dfu_transport.html#lib_dfu_transport_op_abort">Abort</a></td> <td colspan="1" rowspan="1">0x0C</td> <td colspan="1" rowspan="1"><a class="el" href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.0.0/group__sdk__nrf__dfu__req__handler.html#gga3ba70c9f7cf5a1e3b34df7fad58d5eeaa989b9fe14d5e9a10364775513b314062">NRF_DFU_OP_ABORT</a></td> <td colspan="1" rowspan="1">None</td> <td colspan="1" rowspan="1"> <p>None</p> </td> </tr> </tbody> </table> <p>I will have a try on this, thanks :-)</p> <p></p> <p>Regards,</p> <p>Vincent</p><div style="clear:both;"></div>RE: How to start application when the device is under DFU bootloader mode?https://devzone.nordicsemi.com/thread/139604?ContentTypeID=1Tue, 10 Jul 2018 14:33:10 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ef3efad8-bee3-485c-9f90-035dd8ebadc2tesc<p>Hi,</p> <p>The nRF52840 Dongle bootloader is based on the <a href="http://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.sdk5.v15.0.0%2Fble_sdk_app_open_bootloader.html">Open Bootloader with DFU</a> from SDK 15, which does indeed have an Abort command. See <a href="http://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.sdk5.v15.0.0%2Flib_dfu_transport.html">DFU protocol</a>. The command resets the bootloader. If I am not mistaken then that means it should go to the application if there is a valid application present.</p> <p>Regards,<br />Terje</p><div style="clear:both;"></div>