iPhone 4S

Same series:
iPhone 4iPhone 4S
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Technical Description for iPhone 4S

Identification and Model Numbers:

  • Model Numbers: The iPhone 4S can be identified by its official Apple model numbers:
    • GSM - A1387
    • CDMA - A1431
  • Identifiers:
    • These model numbers can typically be found on the back cover of the device.
    • Additionally, the device model can be confirmed in the iOS Settings under "General" > "About."
  • IMEI/MEID: Located on the SIM card tray for the GSM model.
  • Serial Number: Can be found in Settings, on the original packaging, or through iTunes/Finder when connected to a computer.

Specifications:

  • Display:

    • Size: 3.5 inches (diagonal)
    • Type: Retina display, LED-backlit IPS LCD
    • Resolution: 960 × 640 pixels, 326 ppi

  • Cameras:

    • Rear Camera: 8 MP, capable of 1080p HD video recording
    • Front Camera: VGA-quality, used primarily for FaceTime and basic selfies

  • Processor:

    • Chip: Dual-Core Apple A5
    • Architecture: 32-bit

  • Battery:

    • Type: Built-in rechargeable lithium-ion polymer battery
    • Capacity: Info regarding specific mAh is not typically provided by Apple, but approximations suggest around 1430 mAh
    • Charging: Via proprietary 30-pin dock connector

  • Memory/Storage Configurations:

    • RAM: 512 MB
    • Storage Options: 8 GB, 16 GB, 32 GB, and 64 GB

Methods for Device Identification:

  1. Physical Inspection: Check for the model number on the back casing.
  2. Software Inspection: Go to "Settings" > "General" > "About" to find the model number and other detailed device information like the serial number.
  3. Connection to Computer: Using iTunes or Finder (with macOS Catalina and later), connect the iPhone 4S to a computer. The model number, as well as other specifics, can be obtained from the interface.

Spare Parts Reference:

  • Display Assembly: Look for replacements specifically for the 3.5-inch 960x640 IPS LED-backlit display.
  • Camera Modules: Separate parts for the 8 MP rear camera and VGA front camera.
  • Battery: Seek a compatible 1430 mAh lithium-ion polymer battery for optimal performance.
  • Charging Port: 30-pin dock connector parts must match the original specification for adequate charging and connectivity.

The iPhone 4S is a collectible older model, and when conducting repairs, verify parts compatibility with the A1387/A1431 identifiers to ensure proper fit and function.

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