https://devzone.nordicsemi.com/f/nordic-q-a/26798/dfu-with-nusHello,i have try to make ble_app_buttonless_dfu work with ble_app_template &amp;&amp; ble_app_uart . My problem is that the program directly into the bootloader and i don not sent anything to it. The environment is like that nRF5_SDK_14.0.0_3bcc1f7en-USTelligent Community 13Tue, 14 Nov 2017 01:36:31 GMThttps://devzone.nordicsemi.com/thread/105326?ContentTypeID=1Tue, 14 Nov 2017 01:36:31 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e0cd8e67-d234-4f60-ad56-d651dce21c1bYork<p>I did not generate the bootloader settings .So ,it directly into the bootloader.I should read the documentation first.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/105325?ContentTypeID=1Mon, 13 Nov 2017 15:20:51 GMT137ad170-7792-4731-bb38-c0d22fbe4515:62775888-b771-44b4-a309-93867a72b45aHung Bui<p>Hi York,</p> <p>Could you describe how exactly you tested ? Did the device advertise before it enter bootloader mode ? Have you made sure it&#39;s actually enter the application before it switch to the bootloader ?</p> <p>Have you tried to test our buttonless example before you test with your application ?</p><div style="clear:both;"></div>