https://devzone.nordicsemi.com/f/nordic-q-a/79196/can-nrf5340-programming-via-usb-ninterfaceHi Sir We have a project with nRF5340, Coz our product will be a smart watch, we will need to re-programming our product after full assemble in production line, So, we are looking for the feasibility to programming nRF5340 via USB port, Anyoneen-USTelligent Community 13Fri, 03 Sep 2021 06:23:00 GMThttps://devzone.nordicsemi.com/thread/327881?ContentTypeID=1Fri, 03 Sep 2021 06:23:00 GMT137ad170-7792-4731-bb38-c0d22fbe4515:53898996-4a2c-44ef-b533-8f227d55227aovrebekk<p>Hi Mardin</p> <p>It should be possible to set up the USB in CDC ACM mode, and use this to load a new image into the flash that can then be updated using mcuboot.&nbsp;</p> <p><a href="https://devzone.nordicsemi.com/nordic/nrf-connect-sdk-guides/b/software/posts/device-firmware-update-dfu-with-mcuboot-bootloader">This article</a> discusses how to do this on the nRF52840.&nbsp;</p> <p>Maybe you can start by giving that a read?<br />If anything is unclear after reading the article just let me know, and I will do my best to help.&nbsp;</p> <p>Best regards<br />Torbjørn</p><div style="clear:both;"></div>