How to hard reset and factory reset Samsung Galaxy S

Samsung Galaxy S after Froyo 2.2 update lags a lot and you need to factory reset and hard reset it.

Note : You will loose all your data on phone. Hence take backup. I hope you  always sync your phone contacts with Google and take SMS backup using “SMS Backup+” App. This way you can get all your contacts and SMS back after reset.

1. Factory Reset
Go to Settings > Privacy > and tap on Factory data reset.

2. Hard Reset
Shut your Android Galaxy S down (Power off) or remove Battery and then insert but don't turn on.

Now press Volume up, Home and Power together.

If the Samsung Symbol is comming up leave the Home Button.

Then there is a boot Menu.

Volume Up and Down to Navigate , Home to select the choosen option.

Choose WIPE option on menu.

Enjoy lag free experience now.