Introduction: What Does “Carrier-Locked” Mean?
A carrier-locked iPhone is network-bound. To use a T-Mobile SIM card, you must unlock your AT&T-locked iPhone. Due to their discount iPhones, carriers expect you to stay on their plan for the contract duration.
Many benefits come from iPhone unlocking. Switch to lower data plans, use local SIM cards when travelling, and boost your device’s resale value. The golden rule is that your iPhone must be paid off and not lost, stolen, or used for fraud. Only then can you permanently unlock carrier-locked iPhones safely.

Before You Start: How to Check if Your iPhone is Already Unlocked
Make sure your carrier-locked iPhone is locked before unlocking it. Some iPhones are unlocked and work on any network. Here are three simple checks.
Method 1: Check with Your Carrier
Directly contacting your carrier is best. Contact the carrier’s customer care or chat online. Please provide them with your iPhone’s IMEI number (Settings > General > About) to verify its lock status.
Method 2: The SIM Card Test
Using a different network’s SIM card is another easy fix. Replace your SIM with one from another carrier. If your iPhone says “No Service” or needs activation, it’s locked. When it connects and allows calls and data, it’s unlocked.
Method 3: Check in iPhone Settings (iOS 14 or later)
Go to “Settings > General > About.” Scroll down to Carrier or Network Provider Lock. If “No SIM restrictions,” your iPhone is unlocked. Locked if the carrier name appears.

The Top 3 Unlocking Methods For A Carrier Locked iPhone
Method 1: The Official Carrier Unlock
Mobile carriers unlock carrier-locked iPhones safely and reliably. Official carrier unlocks remove the lock from Apple’s database, making your iPhone compatible with any SIM card.
Eligibility requirements:
Before starting, your iPhone must match these requirements:
- The device must be paid off.
- No one may report it as lost, stolen, or fraudulent.
- Service contracts and installment plans must be completed.
- The account must be current with no outstanding overdue invoices.
How to Request an Unlock:
Request an unlock in two ways:
- Online – Most carriers provide a request form on their website.
- Phone – Ask your carrier’s customer support to submit the request.
Pros: free, permanent, safe, and warranty-valid. The way Apple suggests.
Cons: Processing may take days, and you must meet qualifying requirements.
Method 2: Software Solutions – Dr.Fone – Screen Unlock
If your carrier denies the official unlock request or you can’t wait days, try the software. Wondershare’s Dr.Fone – Screen Unlock (iOS) is a top tool. Simple, safe, and trusted by millions worldwide. This program unlocks iPhone carrier restrictions, iCloud Activation Lock, Apple ID, MDM, and Screen Time locks. New iOS 26, iPadOS 26, and iPhone 16 and 17 series are supported.
This procedure requires no documentation, unlike the carrier method. It works on iPhones via computers. You can eliminate SIM restrictions and use any carrier with a few clicks. However, only use this if the official carrier unlock is not possible.
What You Need Before Starting:
- A Mac or Windows machine.
- USB cable for iPhone.
- Download the Dr.Fone – Screen Unlock (iOS) software from the official website: drfone.wondershare.com/iphone-unlock.html.
Step-by-Step Process with Dr.Fone
Step 1. To use Dr.Fone, download and launch the tool on your computer. Then, click Toolbox > Screen Unlock > iOS and choose Remove SIM Locked.

Step 2. Connect your iPhone to the computer. The software will fetch your device specifications on its own. Confirm the info and click Unlock Now.

Step 3. Use the jailbreak instructions given in the tool (if needed). Then, take out the SIM, erase all Wi-Fi networks from settings > WLAN, switch off Wi-Fi, and re-insert the SIM card.

Step 4. The software is doing the unlocking. Wait for the progress bar to reach the end and a confirmation message to pop up. Click Done to complete the process.

Method 3: Third-Party IMEI Unlocking Services (The Paid Shortcut)
If the official carrier unlock fails, use a third-party IMEI unlocking service. This approach is referred to as the paid shortcut because you pay a business to unlock your iPhone using your IMEI number. Going to “Settings > General > About” on your iPhone displays your device’s IMEI.
How It Works: Enter your IMEI number into an internet unlocking service like MobileUnlocks. They then request an official unlock via carrier sources or other acceptable procedures. After approval, your iPhone accepts any SIM card.
When to Use This: If your carrier denies your request or you bought a used phone locked to another carrier, try this option.
Choose a Safe Service: Read reviews on credible sources before paying. Avoid services that require you to send in your phone or seem overly cheap. A respectable service will also guarantee a refund if the unlock fails.
Pros: Quick, technical-free, and warranty-safe.
Cons: Can be pricey. Unlock times span minutes to days, and scams exist.
The Process: Order, enter your IMEI, wait for a confirmation email, and then backup, delete, and restore your iPhone.
Comparison Table: Which Unlock Method is Right for You?
Method | Cost | Safety | Permanence | Best For |
1. Official Carrier | Free | 100% safe (official) | Permanent | Users who meet carrier rules and want the most reliable unlock |
2. Dr.Fone Software | Paid (one-time) | Safe if downloaded officially | Temporary or Permanent (depends on case) | Beginners who want a quick software fix without carrier approval |
3. IMEI Service | Varies from platform to platform | Medium (depends on provider) | Permanent | Users denied by carriers or those with second-hand iPhones |
Conclusion
Unlocking an iPhone can be complex, but the best way depends on your scenario. Free and safe, the official carrier unlock is best if you qualify. Dr.Fone – Screen Unlock offers easy software for speedier recoveries. IMEI services can unlock most iPhones if carriers refuse. Hardware unlocks are hazardous and should be applied last. Avoid frauds, back up your data, and use safe methods. The right method lets you use any SIM card and keep your iPhone secure and functional.