https://devzone.nordicsemi.com/f/nordic-q-a/45720/nrf52840-buttonless-dfuHi, Currently I am adding DFU support to our application, I was able to compile the secure bootloader example and use it. my next question is, how do I enter DFU mode buttonless? do I need a different version of the bootloader for this, or does iten-USTelligent Community 13Thu, 04 Apr 2019 09:11:27 GMThttps://devzone.nordicsemi.com/thread/180219?ContentTypeID=1Thu, 04 Apr 2019 09:11:27 GMT137ad170-7792-4731-bb38-c0d22fbe4515:dcbddc9f-3da5-4d6b-8d70-22d00c46c663jonas.woerner<p>for MBED users:</p> <div style="background-color:#1e1e1e;color:#d4d4d4;font-family:&#39;Droid Sans Mono&#39;, &#39;monospace&#39;, monospace, &#39;Droid Sans Fallback&#39;;font-size:14px;font-weight:normal;line-height:19px;white-space:pre;"> <div><span style="color:#d4d4d4;">NRF_POWER-&gt;</span><span style="color:#9cdcfe;">GPREGRET</span><span style="color:#d4d4d4;"> </span><span style="color:#d4d4d4;">=</span><span style="color:#d4d4d4;"> BOOTLOADER_DFU_START;</span></div> </div><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/180218?ContentTypeID=1Thu, 04 Apr 2019 09:11:05 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0d7a43d3-5d0c-4fe5-bea7-0379b3c3a476jonas.woerner<p>well, I dont want to get mbed specific help, but anyways, I just got it to work way easier than I thought. but the problem with the non debug version of the bootloader still persists. I will add a seperate question for this</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/180163?ContentTypeID=1Thu, 04 Apr 2019 07:02:55 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6df1e5f1-a523-4ccf-8031-b8ba8831b8aeAndreasF<p>Hi.</p> <p>If you are using Mbed OS you have to ask on<a href="https://os.mbed.com/forum/"> their forum</a>.</p> <p>Best regards,</p> <p>Andreas</p><div style="clear:both;"></div>