Hello

You remember the password. If you can't, you have to reset the iPhone or iPad as new. You will lose all data in doing so.

If you have a backup of the device, you can restore it after the reset, but it will also bring back the restrictions password. So, you'd be right back where you started.

Do you actually have a tech support question for the other users here?

See if any of the following articles can help:

• If you forgot passcode for your iPhone, iPad, or iPod touch, or your device is disabled - Apple Support
• iPad, iPod, iPod Touch Recovery Mode - Apple Support
• About Restrictions (parental controls) on iPhone, iPad, and iPod touch - Apple Support