[FONT=Verdana, serif]You may need to wipe the cache partition, do the following:[/FONT]
[FONT=Verdana, serif]1. Turn off the device.[/FONT]
[FONT=Verdana, serif]2. Press and hold the Volume Up key, Home key, and Power key at the same time.[/FONT]
[FONT=Verdana, serif]3. [/FONT][FONT=Verdana, serif]When the phone vibrates, let go of the Power key but continue to press and hold the Volume Up key and the Home key.[/FONT]
[FONT=Verdana, serif]4. Press the Volume Down key to move to and highlight wipe cache partition.[/FONT]
[FONT=Verdana, serif]5. Press the Power key to select and wipe the cache partition.[/FONT]
[FONT=Verdana, serif]6. After the wipe is finished, go back up till reboot system now is highlighted and press the Power key to restart the phone.[/FONT]