You can run a simple command or check system information to find the serial number on a fully functioning device. If you're facing hardware failure or login issues, look for physical labels on the ...

The serial number shows up instantly. Alternatively, you can find the serial number if you look on the underside of the ...

You may need to know the serial number of your iPhone if you're unlocking it through your carrier, having it serviced, or selling it. It's easy to locate, but figuring out exactly how to find the ...