Common Symptoms of a Faulty Charging Flex
If your Infinix Hot 30i is experiencing any of the following issues, replacing this specific flex sub-board usually resolves them:
- No charging response or the phone only charges when the cable is pushed at a strict angle.
- Slow charging or fast charging features suddenly stop working.
- Microphone failure, where people cannot hear you during normal phone calls.
- Headphone jack issues, such as static noise or no audio output through wired headphones.
Repair & Replacement Overview
Replacing the flex board requires careful internal access. If you plan to replace it yourself or take it to a technician, the process involves:
- Opening the Phone: Disassembling the rubberized back plate after removing the SIM card tray.
- Safety Disconnection: Taking off the bracket screws and safely unplugging the fingerprint sensor cable.
- Flex Swap: Unplugging the main motherboard connecting ribbon and the coaxial network antenna wire from the bottom board.
- Transferring Gaskets: Moving the rubber protective dust seals from the old charging port onto the new board to preserve particle protectio.
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