How to Check Apple IMEI Before Buying a Used iPhone: A Step-by-Step Guide

2026-11-02

Checking the IMEI before buying a used iPhone is essential to avoid stolen devices, activation locks, unpaid financing, or hidden hardware issues. The process involves finding the IMEI, running it through a reliable checker, and interpreting the results carefully. This guide provides a step-by-step checklist to verify a used iPhone's IMEI and make a safe purchase.

Why Checking the IMEI Matters Before Buying a Used iPhone

The IMEI (International Mobile Equipment Identity) is a unique 15-digit code that identifies your specific iPhone. Unlike a model number, it's tied to the device's history and status. When you're buying a used iPhone, the IMEI reveals critical information that the seller might not disclose. A quick check can expose if the phone is blacklisted, still linked to an iCloud account, or has a remaining balance on a carrier contract.

Without an IMEI check, you risk buying a phone that cannot be activated, gets blocked later, or has a damaged logic board. Scammers often sell stolen or financed iPhones at tempting prices. A thorough IMEI check is your first line of defense.

How to Find the IMEI on an iPhone

Before you can check the IMEI, you need to locate it. There are several ways, even if the phone won't turn on.

On the device itself

Open the Phone app and dial *#06# — the IMEI will appear on screen instantly.
Go to Settings > General > About and scroll down to find the IMEI.

On the physical hardware

For iPhone 5 and later, the IMEI is etched on the back cover (except iPhone 8 and newer, which have it only in the SIM tray).
Remove the SIM tray — the IMEI is printed on it for iPhone 6s and later.

From the original packaging

The IMEI is printed on the barcode label on the box, usually near the serial number.

If the iPhone is not accessible

If the device is iCloud locked and you can't get past the activation screen, tap the "i" icon in the bottom right corner — the IMEI will display.
If you have the original receipt, the IMEI is often listed there.

Always compare the IMEI from at least two sources (e.g., the phone's settings and the SIM tray) to ensure they match. A mismatch could indicate a replaced housing or tampering.

Step-by-Step Checklist to Check Apple IMEI Before Buying a Used iPhone

Follow these steps to thoroughly verify the IMEI and avoid common pitfalls.

Get the IMEI from the seller — Ask for a clear photo of the IMEI from the Settings screen and the SIM tray. Be wary of sellers who refuse.
Run a free basic IMEI check first — Use a free online IMEI checker to get the model, capacity, and color. This confirms the IMEI is valid and matches the phone's description.
Perform a full Apple IMEI check — Use a comprehensive service like our Apple full IMEI check report (complete) to uncover activation lock status, warranty, blacklist, and more.
Verify the results against the seller's claims — If the report shows a different model or storage than advertised, walk away.
Check for iCloud Activation Lock — Ensure the report says "Find My iPhone: OFF" or "Activation Lock: Disabled." If it's ON, the phone is unusable unless the seller removes it.
Confirm the device is not blacklisted — A blacklisted IMEI means the phone was reported lost or stolen and cannot be activated on any carrier.
Review the warranty status — If the phone is still under Apple warranty, that's a bonus. If it's expired, factor potential repair costs into your offer.
Ask about the purchase receipt — A legitimate seller should provide proof of original purchase, which helps confirm ownership.
Meet in a safe place and test the phone — Insert your SIM card, make a call, connect to Wi-Fi, and check the IMEI on the device matches the report.
Complete the transaction only if everything checks out — If any red flags appear, do not buy.

What a Full Apple IMEI Check Report Reveals

A basic IMEI check gives you the model and capacity, but a full report digs much deeper. Here's what you can expect from a detailed Apple IMEI check.

Activation Lock and Find My iPhone Status

The most critical piece of information. If Activation Lock is enabled, the iPhone is tied to the previous owner's Apple ID. You will not be able to activate or use the phone without their credentials. Always ensure this is OFF before buying.

Blacklist / Lost or Stolen Status

If the IMEI is blacklisted, the phone has been reported as lost or stolen. Carriers will refuse to activate it, making it a useless brick. Blacklist status can vary by country, so check with a service that covers multiple databases.

Warranty and AppleCare Status

Knowing the warranty status helps you estimate future repair costs. An active AppleCare+ plan can be transferred to you, adding value. If the warranty is expired, the phone may still be eligible for out-of-warranty service.

Original Purchase Date and Country

This helps verify the seller's story. A phone purchased in another country might have different LTE bands, and warranty service may be restricted.

SIM Lock / Carrier Lock Status

A carrier-locked iPhone only works with a specific network. If you plan to use a different carrier, you need an unlocked phone. Some reports indicate the current lock status.

Model, Storage, and Color

Confirms the device matches the description. A mismatched storage or color suggests a refurbished or swapped device.

Using a comprehensive service like our Apple full IMEI check report (complete) provides these details in one convenient report, helping you make an informed decision.

Red Flags to Watch Out For When Buying a Used iPhone

Even with an IMEI check, be alert for these warning signs:

Seller refuses to provide the IMEI — Legitimate sellers have nothing to hide. If they won't share it, move on.
IMEI mismatch — If the IMEI on the phone doesn't match the box or the report, the phone may be stolen or refurbished with parts from multiple devices.
Activation Lock is ON — Never buy a phone with Activation Lock enabled, even if the seller promises to remove it later.
Blacklisted IMEI — A blacklisted phone cannot be activated on any carrier. Avoid at all costs.
Price too good to be true — If the price is significantly below market value, there's likely a hidden problem.
Seller pressures you to decide quickly — Scammers use urgency to prevent you from doing a thorough check.
No original receipt or proof of purchase — This could indicate the phone is stolen.
Phone has been reset but still shows iCloud login — If the setup screen asks for the previous owner's Apple ID, it's activation locked.

Frequently Asked Questions

How do I check an iPhone IMEI for free?

You can get a basic IMEI check for free from several websites. Dial *#06# to see the IMEI, then enter it into a free IMEI checker to verify the model and capacity. For a full report including activation lock and blacklist, you may need a paid service.

Can I check if an iPhone is stolen by IMEI?

Yes, a blacklist check using the IMEI can tell you if the phone has been reported lost or stolen. However, blacklist databases vary by country and carrier, so a clean result doesn't guarantee the phone is not stolen, but it's a strong indicator.

What does a blacklisted iPhone mean?

A blacklisted iPhone has been reported lost or stolen to the carrier, and the IMEI is added to a shared blacklist database. The phone will not be able to connect to any carrier network, making it unusable as a phone.

How to check if an iPhone is iCloud locked by IMEI?

You can check iCloud lock status by running the IMEI through a service that provides activation lock status. If the report shows "Find My iPhone: ON" or "Activation Lock: Enabled," the phone is locked to the previous owner's Apple ID.

Is it safe to buy a used iPhone with a clean IMEI?

A clean IMEI is a good sign, but it doesn't guarantee the phone is problem-free. You should also inspect the physical condition, test all functions, and ensure the seller provides the original receipt. A full IMEI check reduces risk significantly.

Can I check iPhone warranty by IMEI?

Yes, Apple's warranty status can be checked by entering the IMEI on Apple's website or through a third-party IMEI check service. This tells you if the phone is still covered and whether AppleCare+ is active.

Frequently asked questions

How do I check an iPhone IMEI for free?: You can get a basic IMEI check for free from several websites. Dial *#06# to see the IMEI, then enter it into a free IMEI checker to verify the model and capacity. For a full report including activation lock and blacklist, you may need a paid service.
Can I check if an iPhone is stolen by IMEI?: Yes, a blacklist check using the IMEI can tell you if the phone has been reported lost or stolen. However, blacklist databases vary by country and carrier, so a clean result doesn't guarantee the phone is not stolen, but it's a strong indicator.
What does a blacklisted iPhone mean?: A blacklisted iPhone has been reported lost or stolen to the carrier, and the IMEI is added to a shared blacklist database. The phone will not be able to connect to any carrier network, making it unusable as a phone.
How to check if an iPhone is iCloud locked by IMEI?: You can check iCloud lock status by running the IMEI through a service that provides activation lock status. If the report shows "Find My iPhone: ON" or "Activation Lock: Enabled," the phone is locked to the previous owner's Apple ID.
Is it safe to buy a used iPhone with a clean IMEI?: A clean IMEI is a good sign, but it doesn't guarantee the phone is problem-free. You should also inspect the physical condition, test all functions, and ensure the seller provides the original receipt. A full IMEI check reduces risk significantly.
Can I check iPhone warranty by IMEI?: Yes, Apple's warranty status can be checked by entering the IMEI on Apple's website or through a third-party IMEI check service. This tells you if the phone is still covered and whether AppleCare+ is active.