Let’s break down what this tool actually is, where to find your number, and how to look up the history of any Apple device.
checkcoverage.apple.com This is the primary tool for warranty validation. apple serial number finder
Remove your SIM card tray. On models from the iPhone 5c to the iPhone 13, the serial number is laser-etched on the inside of the tray. (Note: iPhone 14/15 removed this). Let’s break down what this tool actually is,