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500,000+ Phones Unlocked

Free SIM Unlock Online
Unlock Any Carrier-Locked Phone in 3 Minutes

No technical skills. No payment. No waiting. Works for AT&T, T-Mobile, Verizon, Boost, MetroPCS & 100+ carriers worldwide

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Estimated Unlock Time :
Free Unlock Phone
500K+Phones Unlocked
100% FreeNo Credit Card
180+ CountriesWorks Worldwide
24/7Instant Unlock

The Problem

Tired of Being LOCKED to One Carrier?

You paid for your phone. You should be able to use it anywhere, with any carrier you choose. But carriers lock your SIM to force you into expensive plans — and they charge YOU to escape.

  • The dreaded 'Network Locked SIM Card Inserted' error screen
  • Being forced to pay $30–$100 just to get an unlock code
  • Waiting days or weeks for your carrier to 'approve' your request
  • Travelling abroad and facing outrageous roaming charges
  • Being told your phone isn't eligible — even after paying it off fully
⚠️ Important: Every day your phone stays locked to one carrier, you're potentially overpaying hundreds of dollars per year. The 'network locked SIM card inserted' error is NOT a hardware problem — it's a software restriction that CAN be removed for free. using our IMEI unlock service .
🔒
Network Locked SIM Card Inserted
This SIM card is not supported by your carrier. Contact your service provider to unlock this device.
Carrier: AT&T  |  Signal: None
How It Works

Get a Free SIM Unlock by IMEI Number — 3 Simple Steps

Our free SIM unlock online tool uses your phone's unique IMEI number to generate a certified carrier unlock — permanently removing the SIM lock from your device.

1

Find Your IMEI Number

Dial *#06# on your phone keypad. Your 15-digit IMEI number will appear instantly on screen. Write it down or screenshot it. You can also use our IMEI calculator to verify your device details before proceeding.

Dial *#06#
2

Enter Your Details

Enter your IMEI number, select your current carrier, and choose your phone model. Our system cross-references over 2 million carrier unlock databases instantly. Not sure if your device qualifies? Use our unlock eligibility check tool to confirm before you start.

2M+ Databases
3

Receive Your Unlock & Go!

Your SIM unlock confirmation is delivered to your email within minutes. Follow our simple on-screen instructions and your phone is now permanently free. You can track your order at any time using the order tracking page.

Under 3 Minutes
EasySimUnlocker uses the same carrier unlock databases that official unlock services charge $30–$100 for. We've removed the middleman — so you get it completely free.
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Permanent Fix

'Network Locked SIM Card Inserted' — Here's the Permanent Fix

If your phone is showing this error, don't panic — this is one of the most common issues people face when switching carriers or using a phone abroad.

What Does This Error Mean?

This error appears because your phone's firmware is coded to only accept SIM cards from your original carrier. When you insert a different carrier's SIM, your phone rejects it and displays this error message.

The 3 Most Common Causes:

  • 1You purchased your phone on a carrier contract or instalment plan
  • 2You are travelling internationally and inserted a local SIM card
  • 3You bought a second-hand phone that was never properly unlocked
⚠️ Important: Attempting too many wrong unlock codes can permanently brick your SIM card. Always use an official IMEI-based unlock service like EasySimUnlocker — never random code generators.
✅ Step-by-Step Fix Guide
✕Do NOT attempt to guess an unlock code — 5 wrong attempts will permanently PUK-lock your SIM
✕Do NOT factory reset your phone — this will NOT remove a carrier lock
3Go to EasySimUnlocker.com and enter your IMEI number (dial *#06#)
4Select your current locked carrier from the dropdown menu
5Receive your official unlock confirmation by email within minutes
6Follow the on-screen instructions — the 'network locked' error will disappear permanently
Fix This Error Now — Free

For device-specific guidance, visit our network unlock apps page or use the device unlock app section for step-by-step carrier-specific instructions.

Carrier Unlocks

Carrier-Specific Unlock Services

Different carriers follow different unlock rules, so this section highlights the fastest routes for AT&T, T-Mobile, MetroPCS, Samsung devices, and AT&T iPhones.

AT&T premium IMEI processing
T-Mobile and MetroPCS guided paths
Samsung model-specific instructions
Permanent carrier-approved delivery

Unlock the Right Device Through the Right Carrier Path

Different carriers have different unlock requirements, and EasySimUnlocker supports all of them. If you are locked to AT&T, you can use our dedicated AT&T premium unlock service which processes most requests in under an hour. T-Mobile customers can follow the tailored steps on our T-Mobile unlock page, while MetroPCS users can use our MetroPCS unlock page.

Samsung device owners can find model-specific instructions on the Samsung unlock page. If you own an iPhone locked to AT&T, you can start directly from the iPhone AT&T unlock service page.

No matter which carrier has locked your device, our system matches your IMEI against the correct database and delivers a permanent, carrier-approved unlock directly to your inbox.

AT&TT-Mobile GuideMetroPCS GuideSamsung Unlock
Eligibility Check

Verify iPhone Status Before Unlocking

Before placing an unlock request, it helps to know whether the device is carrier locked, SIM locked, blacklisted, or fully eligible for processing.

Check Lock Status Before You Spend Time on Unlocking

Before submitting your unlock request, it is always a good idea to verify your device's current lock status. Our iPhone IMEI check tool lets you confirm whether your iPhone is carrier-locked, iCloud-locked, or listed as lost or stolen.

You can also run a dedicated iPhone IMEI carrier lock check or SIM lock check to get a precise picture of your device's unlock status before you proceed. This step is particularly useful when buying a second-hand iPhone.as it confirms the device can actually be unlocked before you commit to a purchase.

For Android users wondering whether their device qualifies, the unlock eligibility check tool works across all major manufacturers and carriers.

Instant iPhone overview

Use the IMEI check to confirm carrier lock, iCloud status, and lost or stolen records before you proceed.

Carrier and SIM visibility

Run a dedicated carrier lock check or SIM lock check when you need more precise unlocking context.

Eligibility beyond iPhone

Android users can validate unlock readiness too through our eligibility tool, which works across major manufacturers and carriers.

Need To Know

Common Questions About Our Free SIM Unlock Service

Users usually want to know whether the unlock is permanent, whether warranty stays safe, and where they can read more detailed guidance before starting.

Permanent unlock stored at carrier database level
No rooting, jailbreak, or firmware modification needed
iOS and Android updates do not relock your phone
More help available through our FAQ and blog

Permanent Unlocking Without Warranty Risk

Many users ask whether the unlock is truly permanent. The answer is yes. Our IMEI-based unlock is registered directly at the carrier database level, which means it survives software updates, factory resets, and iOS or Android upgrades.

Another frequent question is about warranty. Unlocking your SIM through an official IMEI-based method does not void your warranty because we work at the carrier level, not by modifying your device's software. There is no jailbreaking, rooting, or firmware modification involved.

For a full list of answers, visit our FAQ page. You can also explore our blog for carrier-specific guides, comparisons, and practical unlock tips.

Visit FAQRead BlogStart Unlock
Why Choose Us

Why 500,000+ People Choose EasySimUnlocker

We do what the big paid services do — except we charge you absolutely nothing.

🆓

100% Free — Always

No hidden fees, no subscriptions, no credit card. Our free SIM unlock online service costs you absolutely nothing.

📡

Works on All Carriers

AT&T, T-Mobile, Verizon, Boost, MetroPCS, Vodafone, EE, O2 and 100+ carriers in 180+ countries worldwide.

📲

All Devices Supported

iPhone 6 to iPhone 16, Samsung Galaxy, Google Pixel, OnePlus, Motorola and all Android devices supported.

🔓

Permanent Unlock

Our IMEI-based unlock survives software updates and factory resets. Unlock once — free forever.

🛡️

No Jailbreak Required

100% safe, legal, and warranty-preserving. We unlock at the carrier level — your phone and warranty stay completely intact.

⚡

Instant Delivery

Most unlocks are processed in under 3 minutes. Full instructions delivered by email with 24/7 customer support.

Real Reviews

Real People. Real Unlocks. Real Freedom.

★★★★★
I was about to pay $35 on DoctorSIM when I found EasySimUnlocker. Same result, zero cost. My AT&T iPhone 14 unlocked in literally 4 minutes. Couldn't believe it was actually free.
MT
Marcus T.
New York, USA
★★★★★
Got the 'network locked SIM card inserted' error when I tried using a Vodafone SIM abroad. Used EasySimUnlocker, entered my IMEI, and it was fixed within 3 minutes. Absolute lifesaver.
PS
Priya S.
London, UK
★★★★★
Bought a second-hand Samsung Galaxy locked to T-Mobile. EasySimUnlocker sorted it out completely free while I was on my lunch break. Now works perfectly on Optus.
JR
Jake R.
Sydney, Australia

Frequently Asked Questions About Free SIM Unlocking

Yes — 100% free. EasySimUnlocker uses official carrier unlock databases and passes the unlock to you at zero cost. There are no hidden fees, subscriptions, or credit card requirements. Ever.

Your IMEI (International Mobile Equipment Identity) is a unique 15-digit code assigned to your device. We use this code to locate your device in carrier databases and generate an official network unlock. Dial *#06# to find yours.

Find your IMEI by dialing *#06#, enter it on EasySimUnlocker.com, then receive your unlock confirmation and follow the on-screen instructions. The error will disappear permanently.

Yes — SIM unlocking is completely legal in the US, UK, EU, and most countries worldwide. The Unlocking Consumer Choice and Wireless Competition Act legally protects your right to unlock your phone after fulfilling your carrier contract.

No. Our carrier-level IMEI unlock does not modify your phone's software or hardware. It is entirely warranty-safe and does not require jailbreaking or rooting your device.

Most unlocks are processed and delivered within 3 minutes. In rare cases involving older carrier databases, it may take up to 30 minutes. We'll email you instructions the moment your unlock is ready.

We support all major brands including iPhone (6 through 16 Pro Max), Samsung Galaxy, Google Pixel, OnePlus, Motorola, Huawei, LG, Nokia, Sony, and more — across 180+ countries.

🔓

Your Phone. Your Freedom. Your Choice.

Join 500,000+ people who've unlocked their SIM for free. Start your free SIM unlock online now and use your phone on any carrier, anywhere in the world.

No payment. No wait. No excuses.

Unlock My SIM For Free — Start Now
⚡ Under 3 Minutes
📡 All Carriers
🔒 Permanent Unlock
🆓 Always Free
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Best value for money service to unlock your phone from your network and get freedom to use any network carrier in the world. Just provide your IMEI number and receive your code via email.

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