FOTA failure after SDK upgrade (partitioning issue)

RE: FOTA failure after SDK upgrade (partitioning issue)

I.gin — Fri, 21 Nov 2025 09:09:43 GMT

Hello Kenneth,
Thanks for your reply.
I've read the links, but mostly addresses the first part (SPU flash partition alignment). It is already fixed by changing the start address and size of tfm_secure and tfm_nonsecure partitions.
My issue is unsuccessful FOTAs.

Update: It seems that the problem is not with the partitioning. I build the old firmware with new partitions, The FOTA is done successfully.
Also when I flash new FW into device and try to do FOTA with the exact same firmware I again get the same error message.

RE: FOTA failure after SDK upgrade (partitioning issue)

Kenneth — Thu, 20 Nov 2025 12:01:26 GMT

Hello,

Can you take a look at this case that seems at least somewhat relevant?
https://devzone.nordicsemi.com/f/nordic-q-a/114935/thingy91-nrf9160-sdk-v2-6-1-tf-m-partition-alignment-error-for-static-partitions

Check out the link to https://docs.nordicsemi.com/bundle/ncs-2.7.0/page/nrf/security/tfm.html

And I guess going through the migration guide is a good start:
https://docs.nordicsemi.com/bundle/ncs-3.1.1/page/nrf/releases_and_maturity/migration_guides.html

Kenneth