https://devzone.nordicsemi.com/f/nordic-q-a/113179/upgrading-large-image-without-external-flashHello, We are currently implementing a custom DFU process for one of our client. They need to be able to upgrade the cores images, which are read from an SD-card. We already have evaluated the DFU capabilities of Zephyr/nRF and could successfully updateen-USTelligent Community 13Tue, 03 Sep 2024 08:06:55 GMThttps://devzone.nordicsemi.com/thread/500891?ContentTypeID=1Tue, 03 Sep 2024 08:06:55 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ccf3e1ed-1e6c-4bc2-b5f7-de104d94a009Rakshita<p>Hey&nbsp;<br />Your question is exactly same as mine, were u able to resolve this by making sd card as a secondary slot?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/494618?ContentTypeID=1Thu, 18 Jul 2024 14:31:57 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8dde0216-13b1-4061-b522-a287ca771194Amanda Hsieh<p>Hi,&nbsp;</p> <p>1. See&nbsp;my colleague&#39;s answer&nbsp;in <a href="https://devzone.nordicsemi.com/f/nordic-q-a/92476/bootloader-from-sdcard">this post</a>.</p> <p>2. See the answer in <a href="https://devzone.nordicsemi.com/f/nordic-q-a/87909/single-slot-mcuboot-and-netcore-update">this post</a>.&nbsp;&nbsp;</p> <p>Regards,<br />Amanda H.</p><div style="clear:both;"></div>