: Prevents purchasing stolen or iCloud-locked hardware.
This guide will walk you through how to find your device's identifier, why checking it is crucial, and how to use iUnlocker to get a full report. What is an IMEI or Serial Number? Every Apple device has a unique identifier.
iUnlocker offers various tiers of checking depth. While the check gives you a quick glance at whether the phone is locked, the paid "Instant IMEI Check" or "GSX Check" provides forensic-level detail. : Prevents purchasing stolen or iCloud-locked hardware
To run a diagnostic report via iUnlocker, follow these basic steps:
: If the seller cannot turn this off, you will be locked out of the device during the next setup. Every Apple device has a unique identifier
For a small fee, the carrier and SIM lock check provides:
This is the core product of iUnlocker. It accesses Apple’s internal databases to provide status flags that cannot be altered by software resets. To run a diagnostic report via iUnlocker, follow
Find out if the device is still under Apple Warranty, has AppleCare+ coverage, or is out of coverage.
Checking the IMEI or serial number is the single most important step when buying a used Apple device. It protects you from financial loss and ensures you are not purchasing stolen property. Using tools like provides a comprehensive, fast, and easy way to gain peace of mind before finalizing your purchase.
Checking an iPhone's IMEI or serial number is an essential step whether you're buying, selling, unlocking, or simply verifying an Apple device's history. provides a comprehensive, user-friendly, and trusted platform for performing these checks—backed by over 12 years of experience, thousands of verified reviews, and direct GSX data from Apple.