Insert a SIM card eject tool or paper clip into the hole next to the headphone jack.

Press down on the paper clip until the SIM card tray pops out.

Grasp the SIM card tray and slide it out of the iPhone.

This image shows the two tabs and two catches located on the underside of the antenna cover. The two tabs at the top of the image must be pushed towards the black cover to release them.

Be sure to slide the metal spudger between the dock connector and the antenna cover, and not into the dock connector itself.

Insert a metal spudger into the slot between the dock connector and the antenna cover. Gently pry up near the two tabs to create a small gap between the antenna cover and the silver front bezel.

Insert an iPod opening tool in the gap between the antenna cover and the front bezel. The wedge of the tool should be pointing towards the antenna cover. Slide the tool around the corner and up until you reach the metal backing.

Repeat the same procedure on the other side of the dock connector.

Grasp the antenna cover on either side and slide it up and away from the iPhone. This requires some force. If it does not come free, ensure that the antenna cover is lifted up enough to free the catches.

Remove the three Phillips #00 screws securing the rear panel to the iPhone.

Getting the iPhone open is a challenging feat, so don't get discouraged. Take a deep breath and make sure you have plenty of time to get the job done.

The small square hole is the location to insert the dental pick in the next step.