Zenfone 4 (ZE554KL)

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The Zenfone 4 (ZE554KL) is a smartphone model manufactured by ASUS, released in 2017 as part of their Zenfone line targeted towards various user segments. Below is a comprehensive technical description tailored for use by repair technicians.

Identification

The Zenfone 4 is officially associated with the model number ZE554KL. It can also be identified through its unique manufacturer reference codes and identification numbers, which are typically found on the device's original packaging, inside settings under "About phone," or on the label located under the SIM card tray or on the back/inside of the device.

Possible Identifiers:

  • Model Number: ZE554KL
  • Manufacturer References: The specific SKU may vary, e.g., ZC520KL-4G005A, depending on region and configuration.
  • Battery Model (if available): Part numbers for replacement batteries include C11P1611.

Physical Characteristics & Specifications

  1. Display:

    • Size: 5.5 inches
    • Type: Super IPS+ LCD
    • Resolution: 1080 x 1920 pixels (Full HD)
    • Glass Type: Corning Gorilla Glass (version varies by production batch)

  2. Cameras:

    • Rear Cameras:
      • Primary: 12 MP (with optical image stabilization, f/1.8 aperture, phase detection autofocus)
      • Secondary: 8 MP (wide-angle, approximately 120-degree field of view)
    • Front Camera:
      • 8 MP (f/2.0 aperture)

  3. Processor:

    • Chipset: Qualcomm Snapdragon 630 (best known for model version with up to 4GB RAM)
    • CPU: Octa-core (8x2.2 GHz Cortex-A53)
    • GPU: Adreno 508

  4. Battery & Charging:

    • Battery Type: Lithium Polymer
    • Capacity: 3300 mAh
    • Charging Port: USB Type-C
    • Charging Capability: Fast charging supported (unspecified nominal rate, approximately 18W)

  5. Memory and Storage:

    • RAM Configurations: 4GB
    • Internal Storage Options: 64GB with expansion via microSD (up to 256GB, shared SIM slot)

  6. Additional Specifications for Replacement Parts:

    • SIM: Dual SIM (Nano-SIM, dual stand-by)
    • Connectivity: Wi-Fi 802.11 a/b/g/n/ac, Bluetooth 5.0, GPS, NFC (region-specific)
    • Audio Jack: 3.5 mm jack present

For technicians, it is essential to accurately identify the device using the model and batch numbers to ensure compatibility of replacement components. Specific components, such as the screen or battery, should match manufacturer specifications to maintain device integrity and functionality.

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