https://devzone.nordicsemi.com/f/nordic-q-a/49189/is-it-possible-to-create-application-hex-file-with-crc-from-it-without-burning-the-hex-application-by-bootloaderHi, everyone, We are developing BlueTooth projects on NRF52832 and NRF51822 modules. The projects are built from DFU Bootloader, Soft Device and Main Application. Each one of these parts is compiled to separate hex file. From these three hex files ween-USTelligent Community 13Wed, 03 Jul 2019 10:16:49 GMThttps://devzone.nordicsemi.com/thread/196225?ContentTypeID=1Wed, 03 Jul 2019 10:16:49 GMT137ad170-7792-4731-bb38-c0d22fbe4515:dc544b99-0c6a-40c2-bf6b-d380500a76c5&#216;yvind<p>Glad I could be of help :)&nbsp;<br /><br />Kind regards,<br />Øyvind</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/196159?ContentTypeID=1Wed, 03 Jul 2019 08:02:26 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2b9b668f-8e15-490b-8b58-ac0c2edbcda4Boris<p>Hello, &Oslash;yvind,</p> <p>You understood my answer correctly.</p> <p>I have checked on this guide that you suggested and it solved me the problem.</p> <p>Thank you very much for help</p> <p>Best Regards</p> <p>Boris Fridman</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/195645?ContentTypeID=1Mon, 01 Jul 2019 12:49:34 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c2f3b95d-a955-43fd-aa5c-77599214115e&#216;yvind<p>Hello,&nbsp;<br /><br />Have you followed <a href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.3.0/background_dfu_firmware_image.html?resultof=%22%6d%65%72%67%65%22%20%22%6d%65%72%67%22%20">this guide</a>? Mergehex should solve this for you if I understand your question correctly.<br /><br />Kind regards,<br />Øyvind<br /><br /></p><div style="clear:both;"></div>