https://devzone.nordicsemi.com/f/nordic-q-a/66296/fota-change-signature-keyHello I evaluated FOTA using the http_application_update example. This worked so far until I tried to use my own key for image signing. I created my own PEM-file using the image tool (RSA-2048) and pointed BOOT_SIGNATURE_FILE to my file. The documentationen-USTelligent Community 13Mon, 01 Mar 2021 12:22:31 GMThttps://devzone.nordicsemi.com/thread/296830?ContentTypeID=1Mon, 01 Mar 2021 12:22:31 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b425b6b8-3f71-46d9-b43c-daced1d0f577samuel4<p>Exactely. You can edit different configurations in the configuration wizard. As far as I remember, you have to set your PEM file in the boot and menu configuration as well.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/296722?ContentTypeID=1Mon, 01 Mar 2021 02:23:29 GMT137ad170-7792-4731-bb38-c0d22fbe4515:bad91d05-311a-4bcf-b6df-356014cd2995RandomUser<p>Could you please give some more info? Which config parameters did you specify for the bootloader and application? Did you use&nbsp;CONFIG_BOOT_SIGNATURE_KEY_FILE for both?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/271337?ContentTypeID=1Thu, 24 Sep 2020 12:20:47 GMT137ad170-7792-4731-bb38-c0d22fbe4515:08fca881-7698-4f1d-8027-2b8365ddb3cdsamuel4<p>I didnt realize that I have to set my own PEM file for bootloader and application separately. After changing it in menu-conf, it works as desired.</p><div style="clear:both;"></div>