What is the reason for the noise on the iPhone?

I don't know what you're talking about by noise, but I can give you two personal insights

1. If there is a lot of noise or current sound during the call, this situation is generally a problem with the earpiece and can only be replaced.

2. If there is a broken sound during the call, then it may be that the earpiece is debris, because there is a magnetic substance on the earpiece, which is easy to absorb small particles containing iron. In this case, it is enough to clean up the handset.

Causes of this situation and how to fix it:

1. There is a problem with the earpiece of the mobile phone;

2. The mobile phone signal is not good. The manifestations of poor signal on Apple's mobile phone are: no signal; The signal is unstable, sometimes unavailable, sometimes strong and sometimes weak; The signal is noticeably weaker compared to other phones.

Solution: 1. Replace it with an Apple special card (because it is easy to damage the chip or poor contact due to the use of large cards to cut small cards).

2. Antivirus the mobile phone (sometimes caused by the mobile phone infected with a virus).

3. Remove the self-equipped metal protective shell (because the metal shell has the disadvantage of weakening the signal).

4. Buy a signal coil for installation (the purpose is to enhance the signal).

5. Replace the mobile phone transmitter or replace the power amplifier (the transmitter or power amplifier is faulty).

This depends on what the sound is, generally speaking, there are the following two situations:

First, the sound of cannon fighting:

1. There is a discharge phenomenon (cleaning and drying) on the machine board.

2. Tail plug leakage (cleaning, drying).

3. The paper tray of the receiver is damaged or of poor quality.

4. Short circuit and leakage of flexible cable.

5. False welding and leakage of audio peripheral components.

Second, the sound of communication:

1. Leakage (rewelding) at both poles of the microphone.

2. Caused by replacing the poor quality casing (replacing the *** casing, or shielding with tin foil, but pay attention to it).

3. The transmitting power is too strong (add resistance to the transmission signal sampling line to reduce the power amplifier power).

Causes and solutions for noise on mobile phones:

1. It may be that there is a strong magnetic field interference near the place where the mobile phone is used, which leads to noise.

Workaround: Try using your phone again in a different location.

2. It may be that there is a problem with the mobile phone system, which causes some functions of the mobile phone to malfunction.

Solution: Try to update the system of your phone, or back up your phone data and restore your phone to its production settings.

3. It may be that the mobile phone has accidentally entered the water before, resulting in a malfunction in the internal wiring, resulting in noise.

Solution: Try to keep your phone in a cool, ventilated place for a few days before using it again, or get a professional to help if necessary.

4. It may be that the hardware related to the mobile phone speaker has been damaged, resulting in noise.

Solution: Contact the after-sales service of the mobile phone and find professional personnel for inspection and repair.

1. It may be that the mobile phone has been flooded before, and when you use the mobile phone again, the mobile phone will be noisy.

Solution: Find the after-sales service of the Apple mobile phone and let the professionals deal with it.

2. There may be strong electromagnetic waves around.

interference, which causes the Apple phone to make a sizzling sound after being interfered with by electromagnetic waves.

Solution: It is recommended to change the location, preferably a spacious place with less electromagnetic interference.

3. It may be an Apple mobile phone speaker.

Once the vibration diaphragm is damaged, the amplitude and direction of the vibration will be wrong, resulting in no sound or noise from the speaker.

Solution: Find the after-sales service of the Apple mobile phone and let the professionals deal with it.

4. If there is only noise or current noise when talking, it is generally a problem with the earpiece, and there may be some debris in the earpiece.

Solution: Try to clean up the clutter, if necessary, find the after-sales service of the Apple mobile phone, and let the professionals deal with it.

There will be noise when Apple hits, because the sound settings of the Apple mobile phone are wrong, and the noise cancellation function can be turned on by setting to solve the problem of noise when playing. Light up the desktop of the phone and open it to the main interface of the system. Press and hold the volume up button on the side of the fuselage with your finger to turn up the volume of your phone to the maximum.

Wait for the volume adjustment to finish, find the settings option in the main interface, and click to enter the next setting. <

Demo model: iphone 12 system version: ios14 1, Apple will have a noise when playing **, because the sound setting of the Apple mobile phone is wrong, and the **noise cancellation function can be turned on through the setting to solve the problem of noise when playing **.

2. Light up the desktop of the mobile phone and open it to the main interface of the system.

3. Press and hold the volume up button on the side of the fuselage with your finger to turn up the volume of the phone to the maximum.

4. Wait for the volume adjustment to be completed, find the setting option in the main interface, and click to enter the next setting.

5. On the settings interface, find the general option selected in the red box and click to enter the next step.

6. In the general interface, click to open the accessibility option to enter the next step.

7. In the accessibility interface, click to open the noise cancellation button to eliminate the noise problem.