A slightly off-center perspective on monetary problems.
Install idevicerestore from GitHub. Run:
After restore, the exclusive IPSW will present a modified activation screen. Insert your new SIM card. The carrier bundle will be patched, and you should see "Carrier Lock: No." download unlocks hub ipsw ios exclusive
idevicerestore -e iPhone9,3_Unlocked.ipsw The -e flag bypasses signature checks (only works on checkm8 devices). Install idevicerestore from GitHub