Mi A1

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The Mi A1, officially identified with model number M1804D2SG, is a smartphone from Xiaomi that was part of the Android One program. It can also be referenced by its codename "tissot." There are several identifiers and specifications pertinent to the Mi A1 which are crucial for repair and servicing.

Identification Methods:

  1. Model Number: The Mi A1 can typically be identified by checking the settings menu. Navigate to Settings > About Phone, where the 'Model' section should indicate M1804D2SG or similar.

  2. Physical Identifiers: The Mi A1 features a full-metal body with distinctive antenna lines running across its top and bottom edges on the back.

  3. IMEI Number: The International Mobile Equipment Identity (IMEI) can be checked by dialing *#06#. The IMEI is unique to each device and can be used to differentiate between devices of the same model.

  4. SIM Tray Markings: Upon removal of the SIM tray, some models might have the model number printed on the edge.

  5. Device Packaging: Original packaging should have labels indicating the model number and IMEI details.

Technical Specifications:

  • Display:

    • Size: 5.5 inches
    • Type: LTPS IPS LCD
    • Resolution: 1080 x 1920 pixels (Full HD)
    • Aspect Ratio: 16:9

  • Cameras:

    • Rear Camera: Dual-camera setup with two 12 MP sensors (one wide-angle, f/2.2 and one telephoto, f/2.6)
    • Front Camera: Single 5 MP sensor

  • Processor:

    • Chipset: Qualcomm MSM8953 Snapdragon 625
    • CPU: Octa-core 2.0 GHz Cortex-A53
    • GPU: Adreno 506

  • Battery:

    • Type: Non-removable Li-Ion
    • Capacity: 3080 mAh
    • Known as: BN31

  • Charging:

    • USB Type-C port
    • Supports standard charging (5V/2A)

  • Memory/Storage Configurations:

    • RAM: 4 GB
    • Internal Storage: Available in 32 GB or 64 GB variants
    • Expandable Storage: Supports microSD cards up to 128 GB (uses SIM Slot 2)

Repair Considerations: For spare parts procurement, the display size, type, and specific aspect ratio details are essential for ensuring compatibility. Camera module specifications need to be confirmed when replacing due to dual-lens configuration. The processor and memory configurations are important for ensuring functional performance parity when considering repairs affecting these components. The battery, labeled BN31, is critical for sourcing a compatible replacement due to its specific form factor and capacity.

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