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Official Way to Unlock an AT&T iPhone for Free

Unlocking an iPhone from AT&T can be a crucial step for many iPhone users. Whether you’re planning to switch carriers, travel internationally, or sell your phone, unlocking it can provide greater flexibility and utility.

This guide aims to demystify the process, outlining clear steps and essential tips for successfully unlocking your iPhone from AT&T. Understanding these steps ensures that you can enjoy the freedom of using your device with any carrier, thereby maximizing its potential.

Understanding the Basics

What Does Unlocking an iPhone Mean?

Unlocking an iPhone refers to removing the restrictions that prevent the device from being used with other mobile carriers. When you purchase an iPhone from AT&T, it often comes locked to their network. This means you cannot use a SIM card from another carrier unless you unlock the phone.

When you insert a SIM card into your locked iPhone, you’ll see the message "SIM Not Supported" on your iPhone.

iphone sim not supported

Why are Phones Locked?

Carriers like AT&T lock phones to their network as part of their service agreement and pricing strategy. It’s often done to ensure that customers stay with the carrier for a certain period, especially if the phone was purchased at a discounted price or on a contract.

Eligibility Criteria for Unlocking

Understanding AT&T’s Policies

Before you initiate the unlocking process, it’s essential to know if your iPhone meets AT&T’s eligibility requirements. Not all devices are eligible for unlocking, and AT&T has specific criteria that must be met:

  • Device is not Blacklisted: The iPhone must be from AT&T’s network. It should not be reported as lost, stolen, or involved in fraudulent activity.
  • Contractual Obligations: If you purchased your iPhone under a contract or on an installment plan, you must have fully paid off the device. Also, any contractual obligations with AT&T must be completed.
  • Active Service Period: The iPhone should have been active on the AT&T network for at least 60 days.
  • Account Status: Your AT&T account should be in good standing, with no overdue balances or unpaid fees.


The most overlooked point is the first one: whether the iPhone is blacklisted. Many people contact AT&T to unlock their phone, only to discover at the last step that their device has been blacklisted and gets rejected. This wastes a lot of time. AT&T officially cannot unlock blacklisted iPhones, so to avoid wasting time and find other solutions promptly, it’s best to check the blacklist status. The only way is to use an online IMEI checker, but make sure to use a manual IMEI checker to ensure 100% accuracy.

You may like: What is an AT&T iPhone Unlock Service?

Exceptions and Special Cases

  • Military Personnel: AT&T allows active military personnel to unlock their devices even if they are under contract, provided they present deployment orders.
  • Non-AT&T Customers: If you’re not an AT&T customer but have an AT&T iPhone, you can still request an unlock but must provide proof of purchase or other ownership evidence.

Step-by-Step Unlocking Process

Unlocking your iPhone from AT&T is a straightforward process, but it requires careful attention to detail. Here’s how to do it:

  1. Check Eligibility: First, ensure your iPhone meets all the criteria mentioned above (Be sure to check if your iPhone is blacklisted first.).
  2. Requesting an Unlock Online:
    • Visit AT&T’s Device Unlock Portal.
    • Fill in the required details, including your phone number and IMEI number. The IMEI can be found by dialing *#06# on your iPhone.
    • Submit the request and wait for AT&T’s confirmation, which usually arrives via email.
  3. Offline Method:
    • If you prefer, you can also visit an AT&T store or contact their customer service to request an unlock.
  4. Confirmation and Final Steps:
    • Once AT&T approves your request, you’ll receive instructions via email. This process can take a few days.
    • After receiving confirmation, replace your AT&T SIM card with a new one from a different carrier.
    • Follow the on-screen instructions to set up your iPhone.


Note: In some cases, you may need to perform a backup and restore of your iPhone through iTunes to complete the unlocking process.

Troubleshooting Common Issues

Even with a straightforward process, users may encounter some hurdles while unlocking their iPhone from AT&T. Here are solutions to common issues:

  1. Unlock Request Denied:
    • Ensure all eligibility criteria are met, including account status and device payment completion.
    • If you’ve recently changed your AT&T plan or updated your device, wait for a few days before requesting an unlock.
  2. No Confirmation Email Received:
    • Check your spam or junk email folders.
    • Contact AT&T customer service for clarification or to check the status of your request.
  3. Unlocking Process Fails:
    • Ensure you’re using a SIM card from a different carrier.
    • Restart your iPhone and retry the unlocking steps.
    • If necessary, perform a backup and restore of your iPhone using iTunes.
  4. Network Issues After Unlocking:
    • Update your iPhone’s software to the latest version.
    • Reset your network settings by going to Settings > General > Reset > Reset Network Settings.


Benefits of Unlocking Your iPhone

Unlocking your iPhone from AT&T offers several advantages:

  1. Flexibility with Carriers: You can switch to different carriers, which is particularly beneficial for finding better deals or services that suit your needs.
  2. International Use: Unlocked iPhones can be used with local SIM cards while traveling abroad, saving you from expensive roaming charges.
  3. Increased Resale Value: Unlocked iPhones generally have a higher resale value as they are more appealing to a broader range of buyers.
  4. Access to All Features and Updates: An unlocked iPhone still receives all the usual updates and has access to all features as a locked iPhone would.


Unlocking an iPhone from AT&T is a straightforward process, provided you meet the eligibility criteria and follow the steps correctly. It opens up a world of flexibility, convenience, and potential cost savings. Whether you’re traveling, switching carriers, or planning to sell your phone, unlocking it is a smart move that enhances your iPhone’s usability and value.

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Eric is an Apple Certified Independent Technician after gaining AppleCare service certifications for both iOS and Mac. He is passionate about helping people to make the most of their iOS devices.

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