This method supported all iDevices iOS 10 to 17.x, No Need Jailbreak

Instruction:

Step 1: Read UDID From 3utool

Step 2: Place Order with serial + email (Must submit email on web first)

Step 3: Go to website https://kingapps.info/proxy and view full tutorial

Step 4: Go to icloud settings => turn OFF and turn ON game center few times

iPhone in menu (No Bypass,No Restore Before)

DO NOT CONNECT WIFI BEFORE CONFIG PROXY

TURN ON AIRPLANE

After server reply done MUST check FMI On/Off again before restore device