https://devzone.nordicsemi.com/f/nordic-q-a/17438/bootloader-sdk12-wont-start-applicationSimilar to the thread posted here , I am trying to merge SD+bootloader+application and flash this to a nrf52 using the Segger programmer. This saves us a huge amount of time in factory when building our product. We have recently migrated to sdk12, whichen-USTelligent Community 13Tue, 01 Nov 2016 14:23:03 GMThttps://devzone.nordicsemi.com/thread/66990?ContentTypeID=1Tue, 01 Nov 2016 14:23:03 GMT137ad170-7792-4731-bb38-c0d22fbe4515:fbdc2de4-4279-4ad0-95d8-6a1ad212e3ffseanbites<p>Awesome! Thanks a bunch!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/66989?ContentTypeID=1Tue, 01 Nov 2016 14:02:15 GMT137ad170-7792-4731-bb38-c0d22fbe4515:bba027e9-654f-4773-97ef-5ce27d2230ffHung Bui<p>Hi Seanbites,</p> <p>The trick to write 1(NRF_DFU_BANK_VALID_APP) directly to set the bank_code flag in bootloader setting won&#39;t work any more with the new bootloader from SDK v12.</p> <p>Now you need to write the whole bootloader setting because CRC check is used for the bootloader setting also.</p> <p>Fortunately, we has a tool (nrfutil) to do that :) You can have a look <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.tools/dita/tools/nrfutil/nrfutil_settings_generate_display.html?cp=5_4_6">here</a>.</p> <p>You should be able to genereate a bootloader_setting.hex file which contain the setting needed. You then can either write that in to the page (0x7F000) or can simply merge it with the bootloader and application+softdevice.</p><div style="clear:both;"></div>