Press to select the Installer icon from your SpringBoard.
Press to select the Install tab at the bottom of the screen.
Press to select Tweaks 1.1.1 from the list of Categories
Press to select Kb2 from the list of Packages.
Press the Install button at the top right hand corner of the screen.
Press the large Install button that appears.
Once Kb2 has finished installing you will be returned to the Categories list. Press the Home button to return to your SpringBoard. Press to select the Settings icon.
Press to select General from the Settings list.
Press to select Keyboard from the General Settings list.
You will now notice there is a switch called Enable Autocorrection. You can turn this switch ON or OFF whenever you need to!