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Oct 06, 2025

Why does the phone turn off when the remaining battery is not zero

If you have ever encountered a situation where your phone automatically shuts down when there is still 20% battery left, the following possible explanations may answer your questions.

Oct 05, 2025

How does the camera work?

The working principle of the camera can be divided into four key steps: optical imaging, electrical signal conversion, digital signal processing and image output.

Oct 04, 2025

Cell phone "a daily charge" and "no power to recharge", which is more harmful to the battery?

Cell phone battery is an important part of the phone, and its life and capacity directly affect the experience of using the phone. So, how should we charge the phone properly?

Oct 03, 2025

Laptop temperature high how to do

Laptop temperature is too high will lead to switching or open the program relatively lag, serious will make the computer blue screen or automatic restart.

Oct 02, 2025

How does the projector work?

The working principle of the projector is based on the fusion of optical and electronic technologies.

Oct 01, 2025

Who is more secure, fingerprint recognition or password?

Fingerprint, security, password, identification Nowadays fingerprint recognition technology is not a new technology, not only smart phones, even the door locks at home have also started to use fingerprint recognition technology.

Sep 30, 2025

What are vr virtual glasses? How is the effect?

3D stereo glasses is a penetrating LCD lens, through the circuit to the LCD glasses on, off the control, on can control the glasses lens all black, in order to cover a glance image; off can control the glasses lens for transparent, so that the other glance to see another glance should see the image.

Sep 29, 2025

How to solve the problem of computer blue screen? What about the blue screen of the computer?

How to solve the problem of computer blue screen? First of all, find out the reasons for the blue screen of the computer. There are many reasons for the blue screen of the computer, such as the excessive overclocking of the computer, the poor contact of the memory module or the damage of the memory, the failure of the hard disk, the failure of the hard disk, and the non existence of the installed software. This article will introduce and analyze the causes and solutions of the blue screen phenomenon one by one.

Sep 28, 2025

Wireless charging principle

The principle of wireless charging is through near-field induction, the wireless charging device conducts energy to the charging terminal device, and then the terminal device converts the received energy into electrical energy and stores it in the device's battery.

Sep 27, 2025

What is Chip?

A chip is a tiny circuit board made of semiconductor materials such as silicon on which a large number of electronic components, such as transistors, capacitors, resistors, etc., are integrated.