or the phone belongs to someone else who has forgotten the passcode (or died, if so read: How to unlock an iPhone, iPad or Mac when its owner passed away)? Perhaps you have found an old iPhone in ...

After discovering this, you might also want to look at how to unlock iPad without password ... that using these methods will ...

If you forgot your iPhone passcode or iPad passcode, you can use recovery mode to unlock your iPhone or iPad. To access the recovery mode, you need a computer and a cable to connect your iPhone to the ...