The mobile phone can't receive the news of the school newsletter, but others can. What is the reason?

The reason is that the school newsletter SMS is set to harassment interception, so you can cancel the harassment interception. The specific method is as follows:

Required materials: mobile phone.

Take oppoR9plus mobile phone as an example.

1. After turning on the phone, find and click the security center icon, as shown in the figure below.

2. After the page jumps to the security center, find and click the harassment interception, as shown in the figure below.

3. Then click the setting icon (the pinion in the upper right corner), as shown in the figure below.

4. After entering the setting interface, cancel the harassment interception set by mistake (the button is not lit to cancel), and the operation can be completed, as shown in the figure below.

Common faults and maintenance of mobile phones;

1. Mute the speaker, receiver and microphone:

This mode sets whether to turn off the sound.

There is no sound outside, or there is no sound in the microphone of the receiver. Plug in headphones and check if there is sound inside. Judging faults and damages.

There is sound in the speaker, but there is no sound in the hands-free call. It can be determined that this is caused by the system.

Speakers, headphones, headphones are silent. The common fault reason is that the audio IC on the motherboard is damaged. one

2, no vibration:

Check the poor contact of the motor.

Connect the positive and negative poles of the motor to the power supply, and check whether the motor works normally.

If the motor is connected to the power supply, it will vibrate, indicating that the circuit of the mobile phone motherboard is faulty.

3, touch is not sensitive:

You can set the calibration touch screen test on your phone. If the fault still exists, the touch screen is damaged.

4. No charge

Usually the USB charging interface is oxidized, which can solve the replacement problem. If it still can't be solved, it can be determined that the motherboard charging IC or power IC is faulty.