Wedge the plastic opening tool in between the top and bottom cases. This may require a little or a lot of force so be careful.
Note: the phone should be face up and the plastic opening tool should be face downwards
Once you get the plastic opening tool in, slide it across the side of the phone, making sure to keep the plastic opening tool wedged in between the two casings.
Repeat the 3 steps above for the top, bottom, and opposite side.
Remove the infra red plastic covering,the button on the left side of the phone, and the earphone cover lid by pulling straight up on them with your fingers.
Wedge the plastic opening tool in between the logic board and the small orange band and gently pry upwards.
Note: the orange band is connected to the logic board by a small connector.