https://devzone.nordicsemi.com/f/nordic-q-a/47922/using-zephyr-nvs-with-mcuboot---losing-configuration-on-firmware-updateI&#39;ve got my application wrapped in mcuboot for HTTP-based firmware updates which is working fine. In the past couple days I&#39;ve enabled CONFIG_NVS using the code in zephyr/samples/subsys/nvs for guidance. The basic ability to save/load settings works fineen-USTelligent Community 13Tue, 03 Mar 2020 15:00:11 GMThttps://devzone.nordicsemi.com/thread/237828?ContentTypeID=1Tue, 03 Mar 2020 15:00:11 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b88e2d60-6b0d-4c2a-bdce-1475290daaf2phipi<p>If you specify --sectorerase (ie nrfjprog.exe --program zephyr/merged.hex --sectorerase &amp;&amp; nrfjprog.exe -r) it will only erase as much as it needs to in order to replace your application and allow you to keep your settings.</p> <p>I know this is old but I just stumbled across it while searching for something else and thought maybe this will help someone in the future.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/189980?ContentTypeID=1Wed, 29 May 2019 18:52:23 GMT137ad170-7792-4731-bb38-c0d22fbe4515:311ef401-d4d8-4a03-aabe-a5efb08d60b5jbrzozoski<p>Just found my issue: the DTS and partition manager break up flash differently.&nbsp; The mcuboot is relying on the PM layout while my NVS code was using the DTS layout.</p> <p>I changed my NVS offset from DT_FLASH_AREA_STORAGE_OFFSET to&nbsp;PM_MCUBOOT_STORAGE_ADDRESS and mcuboot is no longer wiping out my config.&nbsp; nrfjprog is still erasing all of flash, but that&#39;s acceptable as long as I&#39;m aware of that.</p><div style="clear:both;"></div>