It will remove all the data ,contacts and apps that you installed
In order to turn off the cell phone hold down the Power key for a short while.
After that, press and hold together: Volume Up + Home + Power button for a couple of seconds.
Release held keys when the Samsung Logo appears on the screen.
Then select from Recovery Mode menu "wipe data / factory reset" using Volume buttons to navigate and Power button to confirm.
Choose "Yes -- delete all user data" to confirm the whole operation.
After that select option "reboot system now".
Well done! The hard reset has just been performed.
Start by turninng on the device by using the Power key.
From the Home Screen go to Menu and then to Settings.
Tap Backup & Reset (Privacy) and then Factory data reset.
In the next step choose Reset device.
To confirm your choice select Erase everything.
Samsung Droid Charge I510 Restore Factory Hard Reset Format Phone.So lets start the Samsung Droid Charge I510 Restore Factory, Samsung Droid Charge I510 Hard Reset.Turn Off the mobile phone for few mints.Samsung Droid Charge I510 Remove Pattern Lock.
Hard Reset,Restart Problem,Restart Solution,Restore Factory,
Restore Hard reset will set your phone in origional factorry settings. It will remove all the data and apps that you installed. Your contacts will be removed and you have to add them again.