Some of the tutorials over the net is not working. On my part I actually experience on your How To Hard Reset Samsung Exhibit 4G SGH-T759. It's very easy. Just follow the procedures below.
How To Hard Reset Samsung Exhibit 4G SGH-T759
1. Power off the unit.
2. Press and hold Volume Up, Volume Down, and Power On buttons until you see the or directed to Android System Utility.
3. As usual, choose "wipe data/factory reset", then press the Home button to do the process.
4. Choose "Yes--delete all user data", press again the Home button to do the process.
5. Finally Reboot it.
6. SMILE.
