How to factory reset SAMSUNG X640? How to wipe all data in SAMSUNG X640? How to bypass screen lock in SAMSUNG X640? How to restore defaults in SAMSUNG X640?
The following tutorial shows all method of master reset SAMSUNG X640. Check out how to accomplish hard reset by hardware keys and Vendor settings. As a result your SAMSUNG X640 will be as new and your core will run faster.
Hard Reset will erase all of your data
All described operations you are doing at your own risk.