J3900: Main camera seat (wide-angle lens). Damage causes camera malfunction, etc.
J4500: Dot matrix projector seat (Face ID). Damage causes Face ID function to be unusable, etc.
J4600: Ambient light sensing distance sensor microphone seat. Damage causes secondary microphone distance sensing to be unusable, etc.
J4200: Front camera seat. Damage causes front camera to be unusable, etc.
J6400: Connector. Damage causes no charging, no ringtone, no vibration, no voice transmission, no connection, etc.
J4530: Infrared lens seat (Face ID). Damage causes Face ID function to be unusable, etc.
J3500: Mute volume key seat. Damage causes mute key and volume key to be unusable, etc.
J3200: Battery seat. Damage causes device not to power on, not to charge, etc.
J5700: Display seat. Damage causes no display, abnormal display, black screen, etc.
c20-00997-15:
J4300: Power button flash seat. Damage causes no response when powering on, no voice transmission, no flash, etc.
J4000: Main camera seat (telephoto lens). Damage causes camera malfunction, etc.
U6300: USB control. Damage causes no connection, no charging, white Apple reboot on startup, 250MA startup fault, etc.
U6200: Fast charging IC. Damage causes no charging, high current, etc.
Y3000: 32.768K.
U4700: Large audio. Damage causes no sound, no earpiece, no ringtone, no sound from headphones, etc.
U3100: Boost converter. Damage causes device not to power on, leakage, high current, etc.
U5900: Comparator.
U2600: Hard disk. Damage causes device not to power on, white Apple, high current, reboot, flashing error 9, 40, 4014, etc.
-U6150: USB power supply tube.
U3620: Barometric pressure sensor. Damage causes barometric pressure sensor function to be unusable, etc.
U6020
U3600: Gyroscope gravity sensor. Damage causes issues, etc.
U4120: Flash driver 1. Damage causes camera not to open, flashlight unable to be used, etc.
U3700: Camera power IC. Damage causes camera to be unusable, leakage, high current, etc.
U4400: Rigel Driver power supply. Damage causes facial recognition function to be unusable, etc.
U1401: Logic chip.
U1000: A12/CPU. Damage causes device not to power on, flashing error 9, 14, 4013, 4014, no connection, etc.
U2700: Main power supply. Damage causes device not to power on, leakage, no connection, reboot, freeze, etc.
A12
U4100: Flash driver 2. Damage causes camera not to open, flashlight unable to be used, etc.
U3900
U5002: Front earpiece speaker. Damage causes earpiece speaker to malfunction, no sound, leakage, high current, etc.
U4902: Speaker amplifier. Damage causes no hands-free, no speaker, leakage, high current, etc.
Y1000: 24M main clock. Damage causes device not to power on, low current, etc.
U5102: Vibration control IC. Damage causes haptic feedback function to be abnormal, no vibration, leakage, high current, etc.
U3300: Charging IC. Damage causes charging failure, etc.