what are possible ways to safely update firmware on nrf51822 from other host processor ?https://devzone.nordicsemi.com/f/nordic-q-a/12068/what-are-possible-ways-to-safely-update-firmware-on-nrf51822-from-other-host-processorI have having following configuration: I want a fail safe method to update firmware on nrf51822 using attached host controller. I looked at serial wire debug interface and serial boot loader. Is there any other means to do it. Any reference availableen-USTelligent Community 13Tue, 23 Feb 2016 14:36:38 GMTRE: what are possible ways to safely update firmware on nrf51822 from other host processor ?https://devzone.nordicsemi.com/thread/45679?ContentTypeID=1Tue, 23 Feb 2016 14:36:38 GMT137ad170-7792-4731-bb38-c0d22fbe4515:60767c3f-2402-408d-99e7-8b77d53c0068Vidar Berg<p>The <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk51.v10.0.0/examples_ble_dfu.html?cp=4_0_1_4_3_1">serial bootlaoder</a> from the SDK should be well suited for this. There&#39;s also a blog post on it <a href="https://devzone.nordicsemi.com/blogs/846/serial-dfu-procedure-and-tips/">here</a>.</p> <p>It should be possible to use the debug interface as well, but that would require the SWD ARM coresight DAP lite protocol to be implemented on the host controller.</p><div style="clear:both;"></div>