There are 8 components packed into the front of the phone. Infrared Camera; Flood Illuminator; Proximity Sensor; Ambient Light Sensor; Speaker; Microphone; Front Camera; Dot Projector;

The infrared camera, the dot projector and the front camera are located on the back glass assembly.

The flood illuminator, the proximity sensor, the ambient light sensor, the speaker and the microphone are located on the display assembly.

Please be careful when disassembling or repairing the phone. Damage of any component will cause Face ID failure.

Please be noted that there is a slot on the display assembly. When assembling the phone, the fold of the speaker flex cable should be placed correspondingly in the slot to prevent the cable from getting broken. Which will also result in the failure of Face ID.