https://devzone.nordicsemi.com/f/nordic-q-a/111986/is-it-possible-to-change-the-mcuboot-key-via-fotaWe have devices in the field with one MCUBoot Key and we&#39;d like to get all of our devices on the same MCUBoot Key to make managing the fleet easier. Is it possible to migrate devices over to a new MCUBoot Key?en-USTelligent Community 13Wed, 12 Jun 2024 07:52:26 GMThttps://devzone.nordicsemi.com/thread/488435?ContentTypeID=1Wed, 12 Jun 2024 07:52:26 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0c7da25f-36d4-4e79-8160-2defee54339aAHaug<p>Hi,</p> <p>This will depend on your firmware. It is possible to update your MCUboot with new keys given that it is a second stage bootloader and that you have NSIB/a first stage bootloader present in your application i.e support to update the second stage bootloader.&nbsp;</p> <p>However if you don&#39;t have this support already, and your devices are in field/production already, then it is not possible to do this without reprogramming the entire device through serial recovery and overwrite all of the firmware already present.</p> <p>Kind regards,<br />Andreas</p><div style="clear:both;"></div>