Key Features & Components
- Integrated Micro-USB Port: Restores the physical connection for your wall adapter and VOOC flash charging.
- Built-in Microphone: The lower voice mic is soldered directly onto this sub-board.
- Antenna Contacts: Connects your device’s cellular and Wi-Fi signal ribbons to the mainboard.
Common Signs It Needs Replacement
- The device only charges when the cable is held at a specific angle.
- VOOC fast charging no longer activates.
- Computer fails to recognize the phone via USB data transfer.
- The lower microphone is completely dead or sounds heavily muffled to callers.





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