trying to unlock the phone it instructs to connect to a PC or Mac with Itune and still no luck

If you forgot the passcode on your iPhone, or your iPhone is disabled or unavailable -

How to reset your passcode without a computer if you have iOS 15.2 or higher.

How to remove your iPhone, iPad, or iPod touch passcode without a computer - Apple Support

How to reset your passcode using a computer.

If you forgot your iPhone passcode - Apple Support

If your computer doesn't recognize your iPhone, iPad, or iPod

If your computer doesn't recognize your iPhone, iPad, or iPod - Apple Support

iOS device not showing in iTunes for Windows

iOS device not showing in iTunes for Wind… - Apple Community