This guide will show you a simple way on :
How to factory reset SAMSUNG Galaxy Stratosphere Ii I415.
How to wipe all data in SAMSUNG Galaxy Stratosphere Ii I415.
How to bypass screen lock in SAMSUNG Galaxy Stratosphere Ii I415.
How to restore defaults in SAMSUNG Galaxy Stratosphere Ii I415.
All method of master reset SAMSUNG Galaxy Stratosphere Ii I415.
So Check out how to accomplish hard reset by hardware keys and through android settings. As a result your SAMSUNG Galaxy Stratosphere Ii I415 will be as new and your core will run faster.