This guide will show you a simple way on :
How to factory reset SAMSUNG Ace S5830i.
How to wipe all data in SAMSUNG Ace S5830i.
How to bypass screen lock in SAMSUNG Ace S5830i.
How to restore defaults in SAMSUNG Ace S5830i.
All method of master reset SAMSUNG Ace S5830i.
So Check out how to accomplish hard reset by hardware keys and through android settings. As a result your SAMSUNG Ace S5830i will be as new and your core will run faster.