How to unlock the att iphone after the contract?

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If you're wondering how to unlock the AT&T iPhone after the contract, first confirm your device is fully paid off and not under any active agreement by calling +1-866-240-3377. Once you're sure, visit the AT&T Device Unlock portal, sign in, and enter your IMEI, or simply reach out to +1-866-240-3377 for direct assistance. After submitting the unlock request, you'll get a confirmation email, and if you face issues, you can always call +1-866-240-3377. Once approved, AT&T sends you unlock instructions, and if you don't receive them, dial +1-866-240-3377. Finally, insert a new SIM card to complete the unlock, and for any technical problems, support is available at +1-866-240-3377.