https://devzone.nordicsemi.com/f/nordic-q-a/84566/mcuboot-reading-image-header-from-slot-located-in-external-flashHello, I&#39;m building a system on nRF5340 which would support upgrading of CPUAPP and CPUNET applications. There is not enough space in internal flash to place all of these images in the internal flash. Therefore I want to place secondary slots of bothen-USTelligent Community 13Thu, 10 Feb 2022 23:13:41 GMThttps://devzone.nordicsemi.com/thread/352454?ContentTypeID=1Thu, 10 Feb 2022 23:13:41 GMT137ad170-7792-4731-bb38-c0d22fbe4515:db46e8af-9f1d-4eaa-bebc-66d88335fc36rtscts<p>Hi Hung,</p> <p>It seems to work for app code, but not the net core. I had to modify source to use flash_area_read to get it going.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/352322?ContentTypeID=1Thu, 10 Feb 2022 12:40:28 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0f57da4a-aff3-44e2-a541-7264725fc60eHung Bui<p>Hi,&nbsp;</p> <p>Thanks for reporting this. I will check internally with the team and give you an update.&nbsp;</p> <p>Do you have any issue when updating using external flash&nbsp; ? In my test here with the nRF52840 /nRF5340 DK it seems to work fine (at least with app core)</p><div style="clear:both;"></div>