https://devzone.nordicsemi.com/f/nordic-q-a/29483/how-to-firmware-update-over-bleI am using keil 5, softdevice 132, sdk NRF_SD_BLE_API_VERSION=5, nRF52832. I am trying to work with firmware update over ble. In the example folder, there is an example called &quot;buttonless dfu&quot;. I am trying to implement it. But cant succesfullen-USTelligent Community 13Wed, 17 Jan 2018 12:27:35 GMThttps://devzone.nordicsemi.com/thread/117207?ContentTypeID=1Wed, 17 Jan 2018 12:27:35 GMT137ad170-7792-4731-bb38-c0d22fbe4515:dd8f4f50-5500-48e0-ab04-f914a2b9e70aBj&#248;rn Kvaale<p>Great! Good to hear that it worked.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/117206?ContentTypeID=1Wed, 17 Jan 2018 11:29:11 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8bc613fe-ed7b-42ee-885c-c85053b3ee75Muhammet YILDIZ<p>Thanks. I solved problem.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/117205?ContentTypeID=1Tue, 16 Jan 2018 15:18:08 GMT137ad170-7792-4731-bb38-c0d22fbe4515:596839a5-ae03-4cc3-b671-7e8175a1708cBj&#248;rn Kvaale<p>Have you taken a look at the <a href="https://devzone.nordicsemi.com/blogs/1085/getting-started-with-nordics-secure-dfu-bootloader/">secure dfu blog post</a>? Search for the buttonless dfu section. The example can be found at: <code>nRF5_SDK_14.2.0_17b948a\examples\ble_peripheral\ble_app_buttonless_dfu</code></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/117204?ContentTypeID=1Tue, 16 Jan 2018 12:03:12 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e24dd398-c79f-4e7d-bdff-f22c66cd4200Muhammet YILDIZ<p>I started from begining for this issue. Now i have implemented buttonless dfu example just like it say. I am getting <code>&lt;error&gt; app: No bootloader was found &lt;error&gt; app: ERROR 4 [NRF_ERROR_NO_MEM] at ..\..\..\main.c:1197</code> How can i flash the bootloader?</p><div style="clear:both;"></div>