When to Replace This Part
You generally need to swap out this sub-board if your phone exhibits any of the following hardware issues:
- No Charging: The device fails to pull power or only charges when the cable is held at a specific angle.
- Microphone Malfunction: People cannot hear you during phone calls, as the primary microphone is soldered directly onto this logic board.
- Data Transfer Failure: Computer connections fail to recognize your phone via USB cable.
Replacement Tips
- Ensure you match the model number BB4K to get the correct pin configuration.
- Back up your data before opening the phone chassis.
- Disconnect the battery terminal before unplugging or plugging in the main flex ribbon cable to avoid short-circuiting the mainboard.
Reviews
There are no reviews yet.