ZDNET's key takeaways Use these codes to forward calls, pay your bill, check balances, etc.Some of the codes work only on certain carriers or devices.One of the codes also might erase your data, so ...
To unlock your iPhone from its carrier, you'll likely need to contact your carrier directly to cancel your contract.
You can unlock your iPhone with an Apple Watch, which is useful if you're wearing a mask or Face ID can't identify you.
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