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 :

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.

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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.

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.

Dial *#06#

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.

2M+ Databases

Receive Your Unlock & Go!

Your SIM unlock confirmation is delivered to your email within minutes. Follow our simple on-screen instructions — your phone is now permanently free!

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.

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

Free · Permanent · Takes Under 3 Minutes · No Technical Skills Required

Why Choose Us

Why 500,000+ People Choose EasySimUnlocker

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

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100% Free — Always

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

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Works on All Carriers

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

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All Devices Supported

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

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Permanent Unlock

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

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No Jailbreak Required

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

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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.

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.

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.

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.

100% Trusted solutions at EasySimUnlocker

Secure Payment guaranteed with every unlock at EasySimUnlocker

Customer Satisfaction guaranteed with every order

Fast Delivery assurance for a quick unlocking experience

Refund Policy assurance for a risk-free unlocking experience

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

Tired of Being LOCKED to One Carrier?