Question Intel Management Engine Interface (MEI/AMT) Version 241x.xxx

Are you sure about 5th Gen?
I've seen that the latest MEI driver v2406.5.5.0 installed on 5th gen system with pre-integrated ISO 

Last time i checked old MEi (HECI) HW  device IDs were not present in latest packs, do please confirm your needs and related ID's in both drivers, newer and older.

Take a look also here  section: D1. Old Intel MEI Drivers and Software
D1. Old Intel MEI Drivers and Software
ME 7-8-9 series (9 aka 5th Gen CPU)