https://devzone.nordicsemi.com/f/nordic-q-a/87703/re-51822-bootloader-settingI accidentally closed the original ticket , so I create a new one. Hi, 　　 recently I&#39;m building dfu function on my board, using nrf51822 qfaa and softdevice s110. ( Keil v5 to compile and SDK 10 to build bootloader, SDK 7.2 to build applicationen-USTelligent Community 13Mon, 09 May 2022 10:11:21 GMThttps://devzone.nordicsemi.com/thread/366881?ContentTypeID=1Mon, 09 May 2022 10:11:21 GMT137ad170-7792-4731-bb38-c0d22fbe4515:48d7e431-182e-4d5c-9b5a-f5fc1e301b46Edvin<p>I reopened the previous ticket. I will look into it.&nbsp;</p> <p>BR,</p> <p>Edvin</p><div style="clear:both;"></div>