This guide will show you a simple way on :
How to factory reset SAMSUNG Galaxy Note 4.
How to wipe all data in SAMSUNG Galaxy Note 4.
How to bypass screen lock in SAMSUNG Galaxy Note 4.
How to restore defaults in SAMSUNG Galaxy Note 4.
All method of master reset SAMSUNG Galaxy Note 4.
So Check out how to accomplish hard reset by hardware keys and through android settings. As a result your SAMSUNG Galaxy Note 4 will be as new and your core will run faster.