How do you install jar games in Samsung sgh-m620?

first on the start screen. Type in an activation code which in this case is *#9998*4678255# after typing this it will say activation.

then go to the jad and jar and click on it, it will say install game, then say yes to all and it will be installed on your Samsung sgh-m620.

Note that certain games do not work on Sansung SGH-M620