How to adjust the font size of information

The method for adjusting the font size of information is as follows:

Mobile phone: Huawei mate40

System: EMUI 1 1

1. Click Display and Brightness to enter the phone settings.

2. Slide down to find and click Font and Display to enter.

3. Pull the font size and click Apply.

Causes of information transmission failure

1, signal problem

Any mobile phone that wants to make a phone call or send or receive short messages must use the signal provided by the communication operator, and the most common reasons for sending short messages are no signal, unstable signal and failure. Although there seems to be a signal, because the signal is in a fluctuating state, there will be a prompt that the transmission failed.

2, mobile phone system problems

If it is determined that there is nothing wrong with the cell phone signal, then there may be something wrong with the cell phone system. The system problem mentioned here does not mean that there is a system problem. However, when the mobile phone system detects the mobile phone signal, based on the fluctuation of the signal, there will be problems when the mobile phone calls related functions.

3. The number problem

Many friends may question it and think it's nonsense, but it's true. Take some commonly used numbers beginning with 100 as an example. The other party can send a short message to himself, but when replying to TD, there will be a hint of sending failure. This is because the number and equipment used by the other party can't receive SMS at all, and it can also be understood that the other party doesn't want to receive SMS. There is no good solution to this situation, because it is not your own problem.