https://devzone.nordicsemi.com/f/nordic-q-a/101627/nrf5340-audio-dfu-cannot-switch-imageHi, I am adding DFU function to my Custom Audio application and get stuck. I have do follow this step. + using python buildprog.py -c both -b debug -d gateway -m internal -p -f to build image and flash. + I select the app_update.bin. Enter deviceen-USTelligent Community 13Fri, 07 Jul 2023 14:16:53 GMThttps://devzone.nordicsemi.com/thread/435286?ContentTypeID=1Fri, 07 Jul 2023 14:16:53 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a4aee34a-a108-4054-8d51-9fee9f05c73cMaria Gilje<p>Hello,</p> <p>Thank you for sharing your solution.</p> <p>Best regards,</p> <p>Maria</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/435156?ContentTypeID=1Fri, 07 Jul 2023 09:02:20 GMT137ad170-7792-4731-bb38-c0d22fbe4515:64d2db5c-538b-4a46-92d8-a880bfa15e7fTueTD<p>Hi,</p> <p><img style="max-height:240px;max-width:320px;" alt=" " src="https://devzone.nordicsemi.com/resized-image/__size/640x480/__key/communityserver-discussions-components-files/4/2555.bug.PNG" /></p> <p>By using&nbsp;<span class="pre">west</span><span>&nbsp;</span><span class="pre">build</span><span>&nbsp;</span><span class="pre">-t</span><span>&nbsp;</span><span class="pre">partition_manager_report to list out the internal partition flash size. I have found out that my app_update.bin size is larger than the secondary partion.&nbsp;</span></p> <p><span class="pre">I use building by prj_release config to minimize the image size. Therefore, I am able to perform DFU and swap image now</span></p><div style="clear:both;"></div>