Why does the screen go black when the phone dials a number?

The black screen when dialing a number may be caused by the light sensor being blocked, insufficient battery power, mobile phone system failure, mobile phone hardware failure, dial-up software failure, or other reasons. Detailed introduction: 1. The light sensor is blocked. During a call on the phone, if the light sensor is blocked, such as by hands or face, the screen will automatically turn off to save power. This is a normal function of the phone, so there is no need to worry; 2. The battery of the mobile phone is low. When the battery of the mobile phone is low, the system will try to save power, including reducing the screen brightness and other measures. When making a call, if the battery is too low, etc.

#The operating system of this tutorial: ios16.6 system, iphone14 mobile phone.

The reasons why the mobile phone goes black as soon as it dials a number may be as follows:

1. The light sensor is blocked

During the call, if the light sensor of the mobile phone If the device is blocked, such as by hands or face, the screen will automatically turn off to save power. This is a normal function of the phone and is nothing to worry about. But if you want to keep the screen on during a call, you can try turning off this feature. The specific operation method varies depending on the mobile phone model. You can search for "keep the screen on" or similar keywords in the mobile phone settings and follow the prompts.

2. The mobile phone battery is low

When the mobile phone battery is low, the system will try to save power, including reducing the screen brightness and other measures. Therefore, when making a call, if the battery is too low, a black screen may appear. The solution to this problem is simple, just charge your phone. If the situation is urgent, you can try to save power by closing some unnecessary applications when the phone battery is low.

3. Mobile phone system failure

The operating system or application of the mobile phone may malfunction, resulting in a black screen or other abnormalities when making calls. This issue may need to be resolved by restarting the phone or uninstalling and reinstalling the app in question. If the problem persists, it is recommended to factory reset the phone or upgrade to the latest version of the operating system.

4. Mobile phone hardware failure

If none of the above methods can solve the problem, then it is likely that the mobile phone hardware is faulty. This may involve important components such as the mobile phone’s motherboard, display, and camera. In this case, it is recommended to send the phone to a professional repair center for inspection and repair. Before repair, it is best to back up important data on your phone to avoid data loss.

5. Dial-up software failure

Mobile phone dial-up software may sometimes malfunction, resulting in a black screen or other abnormalities. In this case, you can try restarting the phone or uninstalling and reinstalling the dial-up software to solve the problem. If the problem persists, it is recommended to update the phone's operating system or restore factory settings to fix the software glitch.

6. Other reasons

In addition to the common reasons mentioned above, there are some other situations that may cause the phone screen to go black as soon as you dial a number. For example, the phone may be infected with viruses or malware, which may run in the background and interfere with the normal functionality of the phone; in addition, some incompatible third-party applications may also interfere with the normal functionality of the phone. In these cases, it is recommended to use security software for scanning and cleaning, while avoiding the installation of untrusted third-party applications.

To sum up, there are many reasons why the mobile phone screen goes black when dialing a number, which need to be analyzed and solved according to the specific situation. When encountering this situation, you can try the above methods to troubleshoot the problem and find corresponding solutions.

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