https://devzone.nordicsemi.com/f/nordic-q-a/85445/firmware-update-otaHi , I am using nrf52833dvk and nrf52832 boards, am working on application that my nrf52833 board do the firmware updation of other board i.e. nrf52832 . first time i did firmware upgradation on OTA through BLE on nrf52833 board through nrf mobile appen-USTelligent Community 13Tue, 08 Mar 2022 08:56:10 GMThttps://devzone.nordicsemi.com/thread/356787?ContentTypeID=1Tue, 08 Mar 2022 08:56:10 GMT137ad170-7792-4731-bb38-c0d22fbe4515:bc05baf0-73c1-4d56-8352-02e55015218aSimonr<p>Then I recommend that you try out the DFU master example project in the bootloader guide I linked to in my previous reply.&nbsp;</p> <p>Best regards,</p> <p>Simon</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/356512?ContentTypeID=1Mon, 07 Mar 2022 09:18:01 GMT137ad170-7792-4731-bb38-c0d22fbe4515:737aaa56-367a-4f0f-b6b4-faa1d843d4fbShikamaru<p>yes, I want my nRF52833 board to be act as DFU master.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/356484?ContentTypeID=1Mon, 07 Mar 2022 08:01:19 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2209671d-9eec-4576-815d-550c8eba9432Simonr<p>Hi</p> <p>From your description, it sounds like you&#39;re looking for a way to use the nRF52833 as a &quot;DFU master&quot; device. Let me know if that&#39;s not the case, and try explaining if I have misunderstood.</p> <p>We don&#39;t have an &quot;official&quot; SDK example of a DFU master project, but this <a href="https://devzone.nordicsemi.com/guides/short-range-guides/b/software-development-kit/posts/getting-started-with-nordics-secure-dfu-bootloader">DFU bootloader guide</a> includes a DFU master example project that you could use, although some modifications might be necessary.</p> <p>Best regards,</p> <p>Simon</p><div style="clear:both;"></div>