https://devzone.nordicsemi.com/f/nordic-q-a/9885/s310-softdevice-update-via-bootloader-nrf51Hello all, (I&#39;m 99.99% sure the answer is &quot;yes&quot;, but I&#39;ve been asked to find out for sure, so...) Can the (S310) SoftDevice be updated via a bootloader, on an nRF51? Regards, Richard.en-USTelligent Community 13Fri, 23 Oct 2015 08:52:16 GMThttps://devzone.nordicsemi.com/thread/36644?ContentTypeID=1Fri, 23 Oct 2015 08:52:16 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e10f9e29-e8f9-442c-8650-09a53890d725Vidar Berg<p>The answer is yes, bootloader for s310 v.2.0.0 is included in SDK 9.0.0. However, note that bootloader and softdevice update cannot be done simultaneously because of limited flash space (<a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk51.v9.0.0/bledfu_memory_banks.html?cp=4_1_0_4_3_3_1">memory layout</a>), but don&#39;t expect it to be a problem.</p><div style="clear:both;"></div>