I tried fooling it myself several times with the aim of getting satellite connectivity in my unsupported country, to no avail.

Used a German SIM card (where this feature is supported), went in my basement where there’s no cell service so that it can’t read MNC or MCC from any networks nor can it read GPS precisely, used a Raspberry Pi as a router with country code as DE, disabled Wi-Fi, used VPN, used the Xcode debugging tools to simulate iPhone location to Germany (this usually fools all apps into thinking I’m in Germany, including Apple’s own Find My), all to no avail. And there’s no way to feed countryd any custom data.

It’s insane.