How to factory reset SAMSUNG D840? How to wipe all data in SAMSUNG D840? How to bypass screen lock in SAMSUNG D840? How to restore defaults in SAMSUNG D840?
The following tutorial shows all method of master reset SAMSUNG D840. Check out how to accomplish hard reset by hardware keys and Vendor settings. As a result your SAMSUNG D840 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.