https://devzone.nordicsemi.com/f/nordic-q-a/87722/how-to-use-external-spi-flash-in-fota-with-nrf91-on-ncs1-7-0Hi Devzone Currently for my customer request , they would like use the nrf91 on their wearable. They would like to do NRF91 FOTA with the external flash SPI w25q128jv I do the test on example \http_update\application_update, and it always reporten-USTelligent Community 13Tue, 10 May 2022 07:27:43 GMThttps://devzone.nordicsemi.com/thread/367072?ContentTypeID=1Tue, 10 May 2022 07:27:43 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e379a7ee-b202-4910-a880-ce5184515858David Duan<p>HI&nbsp;<span>H&aring;kon</span></p> <p>Thanks for your great support. it is work now <span class="emoticon" data-url="https://devzone.nordicsemi.com/cfs-file/__key/system/emoji/1f44d.svg" title="Thumbsup">&#x1f44d;</span></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/366936?ContentTypeID=1Mon, 09 May 2022 12:41:20 GMT137ad170-7792-4731-bb38-c0d22fbe4515:22116542-e639-4daf-ae18-f9910771e508H&#229;kon Alseth<p>Hi,</p> <p>&nbsp;</p> <p>There&#39;s a white-space in the &quot;spm:&quot; section of your pm_static.yml, but it also has several other issues wrt. partitioning, and it seems that you have defined a 16MByte flash in the overlay, and defined it as 8MB in the partition layout.</p> <p>&nbsp;</p> <p>Have you had a look at this thread?</p> <p><a href="https://devzone.nordicsemi.com/f/nordic-q-a/83590/mcuboot-s-secondary-image-on-external-flash-on-nrf9160/347597#347597">https://devzone.nordicsemi.com/f/nordic-q-a/83590/mcuboot-s-secondary-image-on-external-flash-on-nrf9160/347597#347597</a></p> <p>There&#39;s a link to a modified http_update project there with mcuboot secondary slot on external flash.</p> <p>&nbsp;</p> <p>I do not have your exact spi flash to test against, but I tried to help you along the way by modifying the configuration/partition layout here:</p> <p><a href="https://devzone.nordicsemi.com/cfs-file/__key/communityserver-discussions-components-files/4/288773.zip">devzone.nordicsemi.com/.../288773.zip</a></p> <p>&nbsp;</p> <p>Kind regards,</p> <p>Håkon</p><div style="clear:both;"></div>