Manual Update to Fairphone OS version 0025.0 failing on FP3+

Hello, I am attempting to manually install the newest security update for Android 11 on my FP3+, using this guide:

I am using the update-file

Unfortunately, the process fails with the Error “footer is wrong”:

Can anyone shed some light on this issue?

Thanks a lot!


But i only see the link there from 0025 to 0026. Does anyone have the link for the update from 0023 to 0025?