In daily use, the iPhone has become the first choice for many users due to its excellent performance and exquisite design. However, some minor faults may occur after long-term use. Today, Phonefix will share a repair case about the Apple iPhone 12 not being able to hear the sound during a call, and discuss with everyone the root cause of the problem and how to fix it.
Problem description
This iPhone 12 user has been using it for nearly two years and it is out of warranty. Only recently did he not hear the other party's voice when making a call. The customer said that the phone had never been bumped, dropped or soaked in water. He originally thought it was an accidental failure, but the problem persisted after several consecutive calls. Although the customer could hear the voice on the other end of the phone, the other party could not hear him.
Fault Analysis and Inspection
After receiving the phone, the repairman first conducted an appearance inspection and found that the phone had no obvious external injuries or damage. Then, a preliminary fault diagnosis was performed-making a call and trying to maximize the volume, but the problem described by the customer still existed: the other party's voice could not be heard. According to experience, this type of situation is usually related to the handset module of the phone. Therefore, the initial judgment was that the handset might be broken.
In order to further confirm the specific cause of the problem, the maintenance personnel disassembled the phone with plastic pry bar and used a Trinocular Stereo Microscope for a more detailed inspection. After careful observation, it turned out that the earpiece was broken. In this case, it can be directly replaced with a new one.
Repair process
During the repair process, after the iPhone 12 is disassembled, use Anti-static tweezers to gently remove the damaged earpiece and carefully check its connection. The new earpiece module was prepared and quickly iPhone Earpiece Speaker Replacement. The replacement process was very smooth, all the connecting wires and interfaces were checked correctly, and no other hardware problems occurred.
After replacing the new earpiece, we reassembled the phone and tested it. When making a call, the customer can not only hear the other party's voice clearly, but the other party can also hear a clear echo. The sound quality of the phone call has been restored to its original state, and the problem has been perfectly solved.
Conclusion
This repair reminds us that even if the phone looks good, aging of internal components can cause failures. If you encounter similar problems, please follow us. China Phonefix provides professional repair personnel with high-quality phone repair kit, phone repair parts and one-stop services to help you complete iPhone repair tasks efficiently. If you have any questions, please feel free to ask us and we will be happy to answer them.
