IPhone 6 Plus, How to restore?

MY iPHONE 6 pLUS GOT DISABLED 2DAYS AGO SUDDENLY POBABLY DUE TO FREQUENT CHANGES OF PASSCODE AND THUMB SAN KEY BY MY GRAND CHILDERN. HOW CAN I RESTORE WITHOUT PASSWORDS.

Realize when caps lock is on and not

You can't. That's what passwords are for. BTW, passcodes are case-sensitive.

If it's just the password lock then you can enter DFU mode and restore using iTunes

Note: You will lose all data unless you previously did a backup via iTunes or iCloud

To enter DFU mode:
- Plug your device into your computer with a USB cable.
- Turn off the device.
- Hold the Power button for 3 seconds.
- Hold the Home and Power buttons for 10 seconds.
- Release the Power button but keep holding the Home button.
- After about 15 seconds you will be alerted by iTunes saying that it has detected a device in Recovery Mode.

Once iTunes says you're in Recovery Mode, simply press restore. This will ignore the passcode and restore it