https://devzone.nordicsemi.com/f/nordic-q-a/23977/dfu-ota-uploadHello All, I am working on nrf52840 trying DFU OTA by following steps provided in this link github.com/.../ota-prog.md . where they have mentioned to install python all , i feel that procedure bit difficult to understand , Can anybody suggest me theen-USTelligent Community 13Wed, 02 Aug 2017 14:56:03 GMThttps://devzone.nordicsemi.com/thread/94394?ContentTypeID=1Wed, 02 Aug 2017 14:56:03 GMT137ad170-7792-4731-bb38-c0d22fbe4515:23078e1e-6b50-4843-84be-027ab36e4555bjorn-spockeli<p>Hi Pavan,</p> <p>there are 3ways to perform DFU of a nRF5x device that has been flashed with the Secure BLE Bootloader from our SDK.</p> <ol> <li>nRF Connect for Desktop v2.0, see <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.tools/dita/tools/nRF_Connect/nRF_Connect_DFU.html?cp=5_3_0_9">this</a> Infocenter page.</li> <li>nrfutil v2.3.0, see <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.tools/dita/tools/nrfutil/nrfutil_intro.html?cp=5_5">this</a> Infocenter page.</li> <li>nRF Connect for Android/iOS or nRF Toolbox for Android/iOS, see <a href="https://www.nordicsemi.com/eng/Products/Nordic-mobile-Apps/nRF-Connect-for-mobile-previously-called-nRF-Master-Control-Panel">this</a> page.</li> </ol> <p>Best regards</p> <p>Bjørn</p><div style="clear:both;"></div>