Disable passcode, Face ID, and Find My iPhone. Reboot the device and try again with Airplane Mode enabled.
"Is it going to work?" asked the client, a nervous man in a trench coat who hadn't given his name. He was clutching an iPhone X with a screen so cracked it looked like a spiderweb. "The previous guy said the iCloud lock was permanent. He said the server blocked the attempt." 3utools 2.63
Uninstall Apple Mobile Device Support from Control Panel, then reinstall via 3uTools → Tools → Repair Driver. Disable passcode, Face ID, and Find My iPhone