https://devzone.nordicsemi.com/f/nordic-q-a/77220/comprehensive-dfu-documentation-zephyr-2-4-nrf52840-dfu-vs-windowsIs there comprehensive documentation on DFU, mcuboot, and zephyr somewhere? I have an nrf52840-based device running a Zephyr 2.4-based application with mcuboot 1.7 as a bootloader. The issue that I&#39;m having is that it&#39;s a composite device (multiple HIDen-USTelligent Community 13Fri, 09 Jul 2021 06:57:41 GMThttps://devzone.nordicsemi.com/thread/319280?ContentTypeID=1Fri, 09 Jul 2021 06:57:41 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7449c039-9913-4b84-b0f4-db6fbe6d733d&#216;yvind<p>Hello,&nbsp;</p> <p>What documentation have you been looking at? Are you using Zephyr alone with MCUboot, or are you using nRF Connect SDK? <a href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.6.0/nrf/index.html">Current release of NCS v1.6.0</a> offers Zephyr 2.6.0-rc1 and MCUboot v1.7.99.&nbsp;</p> <p>Kind regards,<br />Øyvind</p><div style="clear:both;"></div>