Recovery mode allows you to update or restore your iPhone using a computer with iTunes or Finder. Here's how to access it.

Recovery Mode: Connect iPad to a computer > open Finder (Catalina or later) or iTunes > restart > Update from the recovery screen. If you don't have access to a computer, use iCloud to wipe the iPad ...

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

Is your iPad not responding, not powering on, or just generally being a nuisance? Sometimes a hard reset is necessary, and it's very easy to perform.