To change your restrictions passcode on an iPhone, you'll need to go into your Settings. Where you go from there depends on ...

Losing access to your iPhone’s Screen Time passcode can be a significant inconvenience, especially when it limits your ability to manage app usage, content restrictions, or device settings.

You can reset an iPhone, even without the password, by putting it into "recovery mode" or erasing it via iCloud's Find My ...

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 ...