This is the most important check for used buyers. A serial number lookup can sometimes verify if "Find My iPhone" (Activation Lock) is turned on.
That random string of characters is the only truth in a market full of refurbished lies and stolen goods. Taking 30 seconds to perform an Apple serial number lookup is the difference between snagging a great deal and ending up with a $800 paperweight. apple serial number lookup
While Apple tells you the official status, third-party lookup tools (like IMEI.info, Swappa’s tool, or IMEICheck) can tell you the secrets Apple won't. This is the most important check for used buyers
The rule of thumb in the secondhand market is simple: Trust, but verify. If you are meeting a stranger in a parking lot to buy an iPhone, ask for the serial number before you meet. Run it through the Apple coverage page. Taking 30 seconds to perform an Apple serial
Before you look anything up, you need to know what you’re looking at.