Iphone 12 Pro Max Motherboard

Core Components

System on a Chip (SoC)

• Model: Apple A14 Bionic

• Process: 5-nanometer (5nm)

• CPU: 6-core (2x high-performance "Firestorm" + 4x high-efficiency "Icestorm")

• GPU: 5-core Apple-designed GPU (vs. 4-core in iPhone 12/12 Pro)

• Neural Engine: 16-core (11 TOPS performance)

Memory

• RAM: 6GB LPDDR4X (Upgraded from 4GB in non-Pro models)

• Storage: 128GB / 256GB / 512GB NVMe NAND flash (soldered)
  
  

  Modem

  • Model: Qualcomm Snapdragon X55 5G

  • Connectivity:

    • 5G NR (Sub-6GHz and mmWave)

    • 4G LTE (Gigabit-class)

    • Dual SIM (Nano-SIM + eSIM)
      
      

      Connectivity & Wireless

      • Wi-Fi 6: IEEE 802.11ax

      • Bluetooth 5.0

      • NFC with reader mode (Apple Pay)

      • GPS/GNSS (Global Navigation Satellite System)

      • Ultra-Wideband (UWB): Apple U1 chip (spatial awareness)
        
        

        Power Management

        • Apple-specific PMIC (Power Management Integrated Circuit)

        • Wireless Charging: MagSafe (15W) + Qi (7.5W)

        • Wired Charging: USB-PD (20W+ fast charging)
          
          

          Physical Design

          • Stacked PCB: Multi-layer design for compactness

          • Shielded Components: EMI shielding for signal integrity

          • Component Serialization: Critical parts (e.g., camera, display) paired to the board
            
            

            Key Integrated Circuits (ICs)

            • Tristar IC (charger IC)

            • Tigris IC (USB controller)

            • Audio IC (audio processing)

            • Baseband Processor (cellular communication)
              
              

              Common Issues

              • Baseband Failure: "No Service" errors

              • Charging Issues: Tristar/Tigris IC failure

              • Audio IC Defects: Microphone/speaker malfunctions

              • U1 Chip Faults: Spatial awareness errors

                Repair Notes

                • Microsoldering Required: Component-level repairs need expertise

                • Software Calibration: Display/camera replacements require Apple Configurator 2

                • Water Damage Susceptibility: Dense layout increases corrosion risk
                  
                  Package for delivery
                  1. Each motherboard in one individual box, full protection and seald;
                  2.Product IMEI and serial number on box;
                  3. Delivery time: 7 ~12 days by air.