1 pointYou're somehow mistaken. For FaceTime and iMessage (or even AppStore) to work, you 1st need to have your LAN/Ethernet card working and set as primary interface en0. If your LAN card is not supported, you can use a fake Ethernet driver. Then, it's a matter of configuring the required settings properly, i.e. MLB and ROM values. Through experience, I found out that I did not need MLB/ROM values from real Macs but those generated through Clover Configurator do the job. So generate your SMUUID, MLB, ROM and so on in CC using the buttons provided by the app. There are tons of guides on the matter, you'll have to scrounge the Net if you want further info on the details.
This leaderboard is set to Amsterdam/GMT+01:00