Installing iPhone 3G Logic Board: Step 1 Remove the two Phillips #00 screws from the dock-connector end of the iPhone. /Guide/Repair/iPhone-3G-Logic-Board/575/all#s2795 Installing iPhone 3G Logic Board: Step 2 There is a rubber gasket between the silver front bezel and black display assembly. A bit of force is required in this step to separate the iPhone's display assembly. Use a small suction cup near the Home button to gently pull up the bottom portion of the iPhone's display assembly. /Guide/Repair/iPhone-3G-Logic-Board/575/all#s2796 Installing iPhone 3G Logic Board: Step 3 The display assembly is still connected to the iPhone by several cables, so don't try to remove it entirely just yet. Rotate the display assembly up until it is at an angle of approximately 45 degrees. /Guide/Repair/iPhone-3G-Logic-Board/575/all#s2798 Installing iPhone 3G Logic Board: Step 4 Continue to hold the display assembly with one hand, and use your other hand and a spudger to disconnect the black ribbon cable labeled "1." /Guide/Repair/iPhone-3G-Logic-Board/575/all#s2799 Installing iPhone 3G Logic Board: Step 5 Rotate the display assembly up until it is roughly vertical. This will allow easier access for disconnecting the remaining cables. Use a spudger to disconnect the black ribbon cable labeled "2." /Guide/Repair/iPhone-3G-Logic-Board/575/all#s2800 Installing iPhone 3G Logic Board: Step 6 Use a spudger to flip up the white plastic tab holding the remaining ribbon cable in place. The white tab will rotate up 90 degrees, releasing the ribbon cable. Slide the black ribbon cable out of its connector, and remove the display assembly from the iPhone. /Guide/Repair/iPhone-3G-Logic-Board/575/all#s2801 Installing iPhone 3G Logic Board: Step 7 Insert your SIM eject tool or a paper clip into the hole next to the headphone jack. Press down on the tool until the SIM card tray pops out. Grasp the SIM card tray and slide it out of the iPhone. /Guide/Repair/iPhone-3G-Logic-Board/575/all#s2802 Installing iPhone 3G Logic Board: Step 8 Use a spudger to disconnect the ribbon cable labeled "4." /Guide/Repair/iPhone-3G-Logic-Board/575/all#s2803 Installing iPhone 3G Logic Board: Step 9 Use a spudger to disconnect the ribbon cable labeled "5." /Guide/Repair/iPhone-3G-Logic-Board/575/all#s2804 Installing iPhone 3G Logic Board: Step 10 Use a spudger to disconnect the ribbon cable labeled "6." /Guide/Repair/iPhone-3G-Logic-Board/575/all#s2805 Installing iPhone 3G Logic Board: Step 11 Carefully peel up the small sticker labeled "Do not remove." /Guide/Repair/iPhone-3G-Logic-Board/575/all#s2806 Installing iPhone 3G Logic Board: Step 12 Remove the following 8 screws: Five 2.3 mm Phillips #00 screws with partial threads securing the logic board to the rear panel. Two 2.3 mm Phillips #00 screws with full threads securing the logic board and camera. One 2.9 mm Phillips #00 screw from beneath the "Do not remove" sticker. /Guide/Repair/iPhone-3G-Logic-Board/575/all#s2807 Installing iPhone 3G Logic Board: Step 13 Use a spudger to gently pry the camera up and out of its housing in the rear panel. The camera cannot be removed entirely yet because it's connected to the bottom of the logic board. /Guide/Repair/iPhone-3G-Logic-Board/575/all#s2808 Installing iPhone 3G Logic Board: Step 14 Use a spudger to gently pry up the end of the logic board closest to the dock connector. If the board won't lift up, double check to make sure all the screws securing the logic board have been removed. /Guide/Repair/iPhone-3G-Logic-Board/575/all#s2809 Installing iPhone 3G Logic Board: Step 15 Slide the logic board towards the dock connector and out of the iPhone. /Guide/Repair/iPhone-3G-Logic-Board/575/all#s2810 Installing iPhone 3G Logic Board: Step 16 Use a spudger to disconnect the camera from the logic board. /Guide/Repair/iPhone-3G-Logic-Board/575/all#s2811