Why does the phone dial out go black immediately, how to solve it?

Usually. Black screen.

It can be divided into two types: one is a black screen in use, and the other is a black screen in standby.

Third-Party Software.

This phenomenon is less common with the software that comes with the machine. There can be two reasons: it may be that there is a problem with the software itself, such as the software itself is unstable or related to.

Mobile phone system. mismatch, uninstalling the software will solve the problem; If the software is not compatible with each other, it is necessary to install and uninstall the software one by one, and experiment to check which software is the problem. If you find it, uninstall it, and the problem will basically be solved.

The black screen in standby is mainly due to the fact that the mobile phone will automatically turn off the screen if it does not detect the key trigger signal for a long time, that is, standby, when you need to use the mobile phone, the button will activate the circuit in the mobile phone, and then the screen will light up.

The reason for the black screen may be because the mobile phone system sends a command to light up the screen, but the screen cannot respond in time due to the delay in the transmission of the circuit, so the black screen is caused. In this case, don't be in a hurry to recover, wait for a while or use the ** around you to call the phone with a black screen, if you can get through, this problem is also.

Just settle. Usually there are two types of black screens: one is the black screen in use, and the other is the standby black screen.

Most of the black screens in use are caused by the third-party software of **, and this phenomenon is rarely caused by the software that comes with this machine. There may be two reasons: there may be a problem with the software itself, such as the software itself is unstable or does not match the mobile phone system, and uninstalling the software can solve this problem; If the software is not compatible with each other, it is necessary to install and uninstall the software one by one, and experiment to check which software is the problem.

If you find it, uninstall it, and the problem will basically be solved.

The black screen in standby is mainly due to the fact that the mobile phone will automatically turn off the screen if it does not detect the key trigger signal for a long time, that is, standby, when you need to use the mobile phone, the button will activate the circuit in the mobile phone, and then the screen will light up.

The reason for the black screen may be because the mobile phone system sends a command to light up the screen, but the screen cannot respond in time due to the delay in the transmission of the circuit, so the black screen is caused. In this case, you don't need to be in a hurry to recover, wait for a while or use the ** around you to dial the phone with a black screen, if you can get through, this problem will be solved.

What's going on with the black screen as soon as the phone hits**.

Summary. Reason 1: The mobile phone distance sensor is blocked Most smartphones have a distance sensor installed next to the earpiece, when you hit **, the face is close, the screen of the mobile phone will automatically go off, and when your mobile phone is far away from the face, the mobile phone screen will be re-lit, this design can increase the battery life of the mobile phone.

Therefore, the black screen of the mobile phone may be blocked by the distance sensor, check whether there is a foreign object in the earpiece accessory above the front of the mobile phone, if there is any, please clean it up, and the general problem can be solved. Reason 2: Failure of the proximity sensor When the proximity sensor fails, it is impossible to correctly judge whether there is an object approaching, which may cause a misjudgment of no object approaching and turn off the mobile phone screen when dialing **, so it is recommended to send the mobile phone to the official designated repair center for repair.

Reason 3: Improper setting of the mobile phone distance sensor software The distance sensor is not set correctly may also lead to a black screen, it is recommended to go to the mobile phone [Settings] - [Display] - [Sensor Verification] to re-check. Reason 4:

The lack of leather pad in the sensor leads to malfunction This situation is generally the mobile phone after disassembling or changing the screen, in fact, the bottom pad of the touch screen replacement or disassembly sensor is lost. The solution is: there are two small holes above the original touch screen, there is a small pad under the hole, about 3 mm thick, the two small holes are just the same size and distance as the small holes on the touch screen.

What's going on with the black screen after dialing the phone.

Reason 1: The mobile phone distance sensor is blocked Most smartphones have a distance sensor installed next to the earpiece, when you hit **, the face is close, the screen of the mobile phone will automatically go off, and when your mobile phone is far away from the face, the mobile phone screen will be re-lit, this design can increase the battery life of the mobile phone. Therefore, the black screen of the mobile phone may be blocked by the distance sensor, check whether there is a foreign object in the earpiece accessory above the front of the mobile phone, if there is any, please clean it up, and the general problem can be solved.

Reason 2: Failure of the proximity sensor When the proximity sensor fails, it is impossible to correctly judge whether there is an object approaching, which may cause a misjudgment of no object approaching and turn off the mobile phone screen when dialing **, so it is recommended to send the mobile phone to the official designated repair center for repair. Reason three:

Improper setting of the mobile phone distance sensor software If the distance sensor is not set correctly, it may also lead to a black screen, it is recommended to go to the mobile phone [Settings] - [Display] - [Sensor Verification] to re-check. Reason 4: The sensor lacks a leather pad and causes failure This situation is generally the mobile phone after disassembling or changing the screen, in fact, the bottom pad of the touch screen replacement or disassembly sensor is lost.

The solution is: there are two small holes above the original touch screen, there is a small pad under the hole, about 3 mm thick, the two small holes are just the same size and distance as the small holes on the touch screen.

Another point is that the lack of memory on the phone will also lead to a black screen.

The black screen after the mobile phone is dialed, it may be that the mobile phone distance sensor is blocked, most smart phones have a distance sensor installed next to the earpiece, and when the face is close to the mobile phone, the screen of the mobile phone will be automatically extinguished, at this time, as long as the face is far away from the mobile phone, the mobile phone screen will be brightened again, this design can increase the battery life of the mobile phone.

Distance sensor, also known as displacement sensor, is a kind of sensor, which is used to sense the distance between it and an object to complete a preset function, and has been widely used. The main products are mobile phone distance sensors, long-distance measurement sensors, etc., which are used in smart belts.

The most widely used distance sensor is the mobile phone, the smart phone on the market contains a distance sensor, when the user is connected, the mobile phone is close to the ear, at this time it is easy to misoperate (such as the bulging face when laughing is easy to hang up), so the distance sensor is needed to monitor the distance in time, and automatically turn off the screen when the distance is too close, so as to avoid the occurrence of misoperation.

Hold on. Hello, if the machine supports the proximity sensor function, when the proximity sensor at the top of the screen is blocked during the call, if it is placed next to the ear, the screen will turn off at this time, this phenomenon is normal. 2.

If your phone doesn't block the sensor or doesn't support the proximity sensor, it is recommended to try pressing the power button or home button, and if the screen will light up, please restart your phone and dial**. 3.If the call screen still appears black after restarting, please update the system version of your phone.

4.If it doesn't work, back up the important data in your device and then restore your phone to factory settings. Hope it can help you, thank you.

The steps to remove the black screen of mobile phone dialing are as follows:1. Find the "Set Sail" button on the screen of Minghu Hail's mobile phone and click the button.

2. In the "Settings" page, find "System & Updates" and click on the function.

3. In the "System Application" page, scroll down to find the "Short**" function and click on it.

4. After that, in the page of "**", find "Call Status" and click on it.

5. Enter the "Call Status" page, find "Sensor", and slide the blue button behind it to turn off the sensor function. In this way, when you hit **, the phone screen will not go black.