[SDK15.3] DFU boot validation crc problemhttps://devzone.nordicsemi.com/f/nordic-q-a/93318/sdk15-3-dfu-boot-validation-crc-problemDear Support Team， Based on SDK15.3, nRF52832, follow the instructions to run the DFU process, use the mergehex.exe tool to merge settings, app, boot, and sd into one hex, and use nrfutil settings display xxx1.hex (four-in-one hex file) to view theen-USTelligent Community 13Mon, 07 Nov 2022 09:20:44 GMTRE: [SDK15.3] DFU boot validation crc problemhttps://devzone.nordicsemi.com/thread/394347?ContentTypeID=1Mon, 07 Nov 2022 09:20:44 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e33e5d71-bee1-4779-87c9-1487a02e34f2zero<p>Hi&nbsp;<span>Hieu，</span></p> <p><span>The problem is found, because the SDK used is 15.2 (my negligence), and the command to generate boot settings with nrfutil is version 2, which causes this problem.</span></p> <p><span>Best regards,</span></p> <p><span>Zero</span></p><div style="clear:both;"></div>RE: [SDK15.3] DFU boot validation crc problemhttps://devzone.nordicsemi.com/thread/392968?ContentTypeID=1Fri, 28 Oct 2022 09:17:21 GMT137ad170-7792-4731-bb38-c0d22fbe4515:cc6b213d-2122-4a77-a8c3-62f4d788f0c5Hieu<p>Hi zero,</p> <p>Recently when I use nrfjprog to write a 4-in-1 hex, I also experience issue where&nbsp;some bytes are different. It ultimately led to fairly similar problem as you described.</p> <p>Could you please try to use a different way to write&nbsp;the flash and see if you don&#39;t have the same problem? For example, I use the Programmer in <a href="https://www.nordicsemi.com/Products/Development-tools/nRF-Connect-for-desktop">nRF Connect for Desktop</a>.</p> <p>Best regards,</p> <p>Hieu</p><div style="clear:both;"></div>