https://devzone.nordicsemi.com/f/nordic-q-a/44383/program-problem-when-using-mergehexHi Nordic support team, I used mergehex to merge the hex files of Softdevice, Secure Bootloader (nRF5_SDK_15.2.0_9412b96\examples\dfu\secure_bootloader\pca10056_ble) and my Application. I used the release version of the Secure Bootloader and I alsoen-USTelligent Community 13Tue, 05 Mar 2019 13:45:07 GMThttps://devzone.nordicsemi.com/thread/174280?ContentTypeID=1Tue, 05 Mar 2019 13:45:07 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a58adfb2-62a0-44d2-a61b-f3a1462bfa98Duy<p>Hi AndreasF,</p> <p>I didn&#39;t generate it. Thank you for your information. Hope it should work well.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/174278?ContentTypeID=1Tue, 05 Mar 2019 13:43:58 GMT137ad170-7792-4731-bb38-c0d22fbe4515:cecc2052-88c6-477c-9131-488edd6500f0Duy<p>Hi bac Hoang,</p> <p>Thank you for your information, I didn&#39;t generate the settings.hex. I fault not reading the user guide clearly.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/174241?ContentTypeID=1Tue, 05 Mar 2019 12:29:28 GMT137ad170-7792-4731-bb38-c0d22fbe4515:759acc1c-b2ba-4b96-8cde-215a815172d3AndreasF<p>Hi.</p> <p>Did you try to genereate the<a href="https://www.nordicsemi.com/DocLib/Content/User_Guides/nrfutil/latest/UG/nrfutil/nrfutil_settings_generate_display"> bootloader settings page and merge</a> that one aswell?</p> <p>Best regards,</p> <p>Andreas</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/174089?ContentTypeID=1Mon, 04 Mar 2019 18:49:57 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0e4cf9f1-60e9-4bd2-a662-cfb2c1220b18Nguyen Hoan Hoang<p>I think you are missing the settings.hex which is needed to be generated by nrfutil and added to mergehex.</p><div style="clear:both;"></div>