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Background and Identification ¶ 

The iPhone 4 is the fourth iteration of Apple's cellphone line. Announced on June 7th, it is differentiated from earlier generations by having a squarish physical appearance, glass for both front and back panels, and a steel frame that doubles as reception antennas.

Difficulty with repairing the iPhone 4 depends on which part of the phone fails. The front panel glass is fused to the LCD and digitizer, which means that the glass can no longer be repaired or replaced individually. Users who accidentally shatter the iPhone 4's front panel will have to replace all three (as a single unit) in order to successfully repair their iPhone 4. The back panel, however, is replaceable by unscrewing two screws and sliding up the panel.

Replacing the battery, on the other hand, is easily accomplished -- even though Apple ascertains that no parts within the iPhone 4 are user-serviceable. To replace the battery, the user can follow iFixit's battery replacement guide to remove the back panel and disconnect the battery.


Free Screw Mat ¶ 

Thanks to Nathan Henderson for this great screw mat for the display repair.


Specifications ¶ 

Announce date: June 07, 2010

Model: A1332

Developer: http://www.apple.com

Operating System: iOS 4.0 through iOS 7.1.2

Display (Retina Display):

  • 3.5 in (89 mm)
  • 3:2 aspect ratio
  • 960 x 640 px at 326 ppi
  • 800:1 contrast ratio
  • Scratch-Resistant, glossy, glass-covered IPS LCD screen
  • Oleophobic coating

Camera: Contains both front and rear facing cameras.

  • Front Camera
    • .3 MP
    • SD Video (480p) at 30fps
  • Rear Camera
    • 5MP
    • HD Video (720p) at 30fps
    • LED Flash

Processor: Apple A4 system-on-a-chip


Storage: 8, 16, or 32 GB Flash Memory

Wireless Connectivity:

  • Integrated 802.11n (2.4 GHz only)
  • Bluetooth 2.1 + EDR
  • Quad-band UMTS/HSDPA (850, 900, 1900, 2100 MHz) and GSM/EDGE (850, 900, 1800, 1900 MHz)
  • 5.76 Mbit/s HSUPA

Battery: 3.7 V, 1,420 mAh

Dimensions: 4.5 × 2.31 × 0.37 in (115.2 × 58.6 × 9.3 mm)

Weight: 137 g (4.8 oz)

Colors: Black or White

Troubleshooting ¶ 

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