https://devzone.nordicsemi.com/f/nordic-q-a/27868/buttonless-dfu-examples-in-sdk14-2-is-not-working-for-meHi there, The dfu secure bootloader example is working fine with my nrf52832 sdk14.2 s132. but the experimental buttonless dfu in the example is not working for me. I was able to transfer the application through my iPhone nrf_connect to my board, theen-USTelligent Community 13Thu, 07 Dec 2017 08:45:02 GMThttps://devzone.nordicsemi.com/thread/109889?ContentTypeID=1Thu, 07 Dec 2017 08:45:02 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3d3edc41-3b93-4fc9-b0e6-0696dfb85b15Cabbage<p>I solve this problem by use nrf-connect on ipad instead of iphone, and follow the process as I previous do, all of it seem work correctly. I don&#39;t know why, maybe is available memory is to small in my iphone.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/109888?ContentTypeID=1Fri, 17 Nov 2017 16:32:42 GMT137ad170-7792-4731-bb38-c0d22fbe4515:318720fc-8b5f-48e4-a6b1-1fcb5a4b8033Hung Bui<p>Hi Cabbage,</p> <p>Could you list exactly all your steps for both when &quot;bootloader example is working fine&quot;, &quot;experimental buttonless dfu in the example is not working &quot; , I want to see how you flash the softdevice, bootloader application, and the order.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/109887?ContentTypeID=1Fri, 17 Nov 2017 08:35:54 GMT137ad170-7792-4731-bb38-c0d22fbe4515:740af117-49a4-4f96-ad0a-25a54e0d83beshibshab<p>Try using a different DFU host. You can use nrf connect on android, or if you have a second nRF5x device (PCA10028, PCA10031 or PCA10040) you can use nrf-connect on PC or pc-nrfutil.</p><div style="clear:both;"></div>