This guide will show you a simple way on :
How to factory reset SAMSUNG Galaxy A8s.
How to wipe all data in SAMSUNG Galaxy A8s.
How to bypass screen lock in SAMSUNG Galaxy A8s.
How to restore defaults in SAMSUNG Galaxy A8s.
All method of master reset SAMSUNG Galaxy A8s.
So Check out how to accomplish hard reset by hardware keys and through android settings. As a result your SAMSUNG Galaxy A8s will be as new and your core will run faster.