https://devzone.nordicsemi.com/f/nordic-q-a/74488/flash-bootloader-softdevice-and-applicationHi I am trying to flash the device with the bootloader, the soft device and the application, because I do not want do the OTA update at production. I used the following example: https://github.com/gamnes/nRF52832-buttonless-dfu-development-tutorialen-USTelligent Community 13Tue, 27 Apr 2021 11:56:20 GMThttps://devzone.nordicsemi.com/thread/307005?ContentTypeID=1Tue, 27 Apr 2021 11:56:20 GMT137ad170-7792-4731-bb38-c0d22fbe4515:354676bb-7c03-4258-a579-a168e9c70b7etesc<p>Hi,</p> <p>In addition to the missing bootloader settings file mentioned by <a href="https://devzone.nordicsemi.com/members/turboj">Turbo J</a> (see also <a href="https://infocenter.nordicsemi.com/index.jsp?topic=%2Fug_nrfutil%2FUG%2Fnrfutil%2Fnrfutil_settings_generate_display.html">Generating and displaying bootloader settings</a>, and <a href="https://infocenter.nordicsemi.com/index.jsp?topic=%2Fsdk_nrf5_v17.0.2%2Fble_sdk_app_buttonless_dfu.html&amp;anchor=ble_sdk_app_buttonless_dfu_bootloader_settings">Bootloader settings page</a>), there is also a bug in mergehex from nRF Command Line Tools v10.12.x. If you experience any issues also with the settings file in place, try using nRF Command Line Tools version 10.11 instead.</p> <p>Regards,<br />Terje</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/306955?ContentTypeID=1Tue, 27 Apr 2021 09:07:12 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f0aca331-c2cc-4031-8e91-297a3319f068Turbo J<p>You need to generate a &quot;bootloader settings page&quot; with nrfutil, and either merge this with you final hex file or flash this in addition.</p> <p>Otherwise the bootloader assumes that there is no valid app in flash memory.</p><div style="clear:both;"></div>