To reset or change your iPad's passcode, you can use the "Passcode" menu in your Settings app, or reset the entire device.

From phones to bank accounts, most of us juggle several passwords, PINs, and passcodes, making it hard to keep track of all of them. Maybe it's happened to you: you pick up your iPad, swipe to unlock ...

To unlock your iPhone from its carrier, you'll likely need to contact your carrier directly to cancel your contract.