How to reset an iPhone without knowing your password

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

How to deal with 'iPhone unavailable' screen in four ways

It can remove an Apple ID from an iPhone without a password, remove a Screen Time passcode within seconds, and even fix a disabled iPhone without using iTunes or iCloud. For business users, it can be ...

How to transfer all of your apps onto a new iPhone using iCloud or the App Store

To transfer your apps to a new iPhone, you can use an iCloud backup or download them again from the App Store. Here's how to ...