https://devzone.nordicsemi.com/f/nordic-q-a/11152/dfu-device-manager-securityhello guys, I&#39;m working in a project &amp; I&#39;m debugging using nrf15822a development kit, I want to implement the DFU &amp; security feature to have a secured link and to be able to update my firmware at any time over the air, the DFU was working well whenen-USTelligent Community 13Wed, 06 Jan 2016 11:08:37 GMThttps://devzone.nordicsemi.com/thread/41794?ContentTypeID=1Wed, 06 Jan 2016 11:08:37 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5e51ec1d-0020-4bca-92e3-495650223916Vidar Berg<p>Hi, have you tried to using the <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk51.v10.0.0/bledfu_appexample.html?cp=4_0_1_4_3_1_2_0">heart rate example with dfu support</a>? This example supports buttonless DFU including the bond sharing feature already. I would suggest to use this as a reference when you add DFU support to your application in addition to the instructions given <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk51.v10.0.0/bledfu_appextending.html?cp=4_0_1_4_3_1_2_1">here</a>.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/41793?ContentTypeID=1Tue, 05 Jan 2016 19:18:59 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4b45e3e4-5cc4-4cf4-aa2d-fa00b83bbb4cMohamed O.Abouzeid<p>note that I&#39;m using the latest version of SDK, &amp; the toolchain for compilation is keil for both the bootloader &amp; my firmware, they were compiled successfully</p><div style="clear:both;"></div>