On some older models (pre-2018), the text is very small and may rub off over time. If it’s unreadable, use another method.
: Once you have the serial number, you can verify your device’s warranty and model details at the official Apple Check Coverage site. how to check serial number macbook pro
Note that third‑party sites may provide helpful decoding but verify results against Apple’s official records when possible. On some older models (pre-2018), the text is