https://devzone.nordicsemi.com/f/nordic-q-a/43077/nrf52840-dfu-usb-and-bleHi, Nrf52840 can support usb and ble dfu at the same time? If it can,how can i do it? thanks.en-USTelligent Community 13Mon, 28 Jan 2019 13:37:47 GMThttps://devzone.nordicsemi.com/thread/168258?ContentTypeID=1Mon, 28 Jan 2019 13:37:47 GMT137ad170-7792-4731-bb38-c0d22fbe4515:61824e81-301f-4db7-b67a-2bf5cfe6d1acVidar Berg<p>Hi,&nbsp;</p> <p>We don&#39;t have an example that combines both, but the bootloader was designed to support&nbsp;multiple transport layers so should be possible without too much effort. I would suggest to start with the BLE bootloader and import the USB transport (<a href="https://www.nordicsemi.com/DocLib/Content/SDK_Doc/nRF5_SDK/v15-2-0/lib_dfu_transport">link to relevant documentation</a>).</p><div style="clear:both;"></div>