iPhone 3G - Technical WhitepaperDescription: The iPhone 3G is the 2nd generation iPhone released in July of 2008. The primary differences between the original iPhone and the 2nd generation is the integrated GPS and 3G radio. Apple also removed the aluminum backing from the original iPhone and replaced it with a hard plastic shell. This increased radio reception on the new model and reduced interference. The iPhone 3G operating system runs on a version of OS X refered to as Cocoa.
iPhone Battery Replacement - Media Options Printer Friendly Instructions (Coming Soon) iPhone Battery Replacement VideoBattery Installation DifficultyWe would rate this installation 3 out of 5 screw drivers (Medium) in terms of difficulty. It's difficult to leverage the glass touch screen out and there are many components removed in the process. This installation requires the ability to work with small parts and connectors. If you're not technical you may need help in performing this iPhone battery installation.Physical Attributes
Dimensions: 115.5 x 62.1 x 12.3 mm Weight: 4.7 ounces
Battery Type: Li-Polymer Battery Voltage: 3.7v
Casing Type: Polished High Grade Plastic Screen Size: 3.5 Inches Scrolling Type: Multi Touch Display
Manufacture: Apple™ Operating System: OS X - Cocoa 2.2
Capacity Options: 8GB & 16GB
Year Introduced: 2008
Required Tools: #00 phillips screw driver, case opening tool, tweezers, & small paper clipStep #1 - Power Off iPhoneHold down the power button for 5 seconds and shut down.Step #2 - Remove 2 Base ScrewsThe screws are located near the speaker and microphone ports on the iPhone. After removing the screws set them aside in a safe area.Step #3 - Remove SIM CardThe SIM card is located at top of the iPhone. Use a paper clip or stick pin to unlock it. Look for a small hole to insert the paper clip in order to eject the card and holder. Set the card and holder aside in a safe area.Step #4 - Remove Glass Touchpad a. The glass touchpad can now be lifted starting on the side that contained the screws. Use the case opening tool to wedge the glass out. The silver rim should stay with plastic backside as the glass is lifted. Also, if it's too tight a suction cup can be used to pull the glass up. Note: This is a tight fit and it can take some time to seperate the glass. Lift the glass about 3/4 of the way until you can access the ribbon connectors along the back side. b. Disconnect connectors #1 and #2 by lifting gently with your fingers or leverage with the plastic case tool. The third and last connection is hidden under the ribbon of connector #2 (See next step). c. Disconnect connector #3 by moving the small, black or white tab up at a 45 degree angle then the ribbon should pull free. This is the most difficult connector to reconnect as the device is reassembled. The glass touchpad should now be free and you can set it aside in a safe area.Step #5 - Remove Main System Board (Motherboard) a. Unplug the system board top connectors. These are connectors #4, #5, and #6. Lift gently with your fingers to release the connectors or use your case opening tool. All of these connectors snap off and on. b. Remove the 7 screws holding down the system board. The 7th screw is located under a sticker that says "Do Not Remove". You'll need to remove this sticker to get to the screw. Important: The 7th screw is also longer than the other 6 screws and should be kept seperate for reassembly. c. Slowly lift the up the side of the system board that contains connectors #5 & #6. As you slowly lift, you will see the final connector located on bottom of the system board. This final connector is the camera connection. Note: You could also remove the camera along with system board by unscrewing the locking arm holding down the camera CCD (not all iPhones contain this locking mechanism). Disconnect the camera and remove the system board. After this step is complete you will be left with the battery being exposed and ready for removal.Step #6 - Remove BatteryThe battery is fixed to the bottom using double-sided tape. It can take some work to release the battery. Pull on the plastic battery tab and leverage the battery up using the case opening tool. Leverage a tool on each corner of the battery pulling up on each corner. Once the battery is removed you can move onto the battery installation procedure.
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