https://devzone.nordicsemi.com/f/nordic-q-a/116935/mcumgr-image-upload-hangsHi, I&#39;m developing a firmware based on Zigbee CLI sample. And I enabled DFU of app core and net core via serial with serial recovery mode. Using SDK v2.4.2 and nRF5340 . Now I am facing an problem in mcumgr image upload with app-core image( app_updateen-USTelligent Community 13Tue, 03 Dec 2024 16:34:54 GMThttps://devzone.nordicsemi.com/thread/513276?ContentTypeID=1Tue, 03 Dec 2024 16:34:54 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b803632a-1f3f-470f-b608-2939e1a50ff2AHaug<p>Hi,</p> <p>Glad to hear that you resolved it. Out of curiosity, do you know which differences caused this to happen?&nbsp;</p> <p>Kind regards,<br />Andreas</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/513123?ContentTypeID=1Tue, 03 Dec 2024 08:25:27 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e76b0c0f-f7f6-471f-8f34-312a42db427dyuk<p><span>SOLVED</span></p> <p><span>It turned out there were file differences when building on Mac, which prevented it from entering serial recovery mode.</span></p><div style="clear:both;"></div>