My Mate 40 suddenly went black?

1.Force restart your phone.

Press and hold the power button for more than 10 seconds (EMUI versions require pressing and holding the volume down button and the power button at the same time for more than 10 seconds) to force restart the phone. If it cannot be restarted, please bring your purchase voucher to the Huawei Customer Service Center for testing. If you can restart the recovery, we recommend that you follow the following steps to avoid black screens.

2.Check whether the fault occurs in the following scenarios:

1) Black screen during phone calls. In order to increase the battery life of the mobile phone, during the call, if the distance sensor is blocked, the mobile phone will automatically turn off the screen, and the screen will be turned on again after being far away.

2) The phone reaches the set sleep time. The screen will automatically turn off when the phone reaches the set sleep time, and manually turn on the screen when you re-enter.

3) Using the phone while charging may cause the phone to overheat, resulting in abnormalities. It is recommended that you try to avoid playing with your phone while charging.

3.Check your phone storage.

Please check the remaining storage space of your phone, if the storage space is less than 10%, the system performance will drop sharply, it is recommended that you ensure that the storage space of your phone is as much as possible, it is recommended to reserve 20% space.

There are too many reasons for the black screen, the battery is broken, the motherboard is broken, the power is out, etc., the mate40 must have a warranty until now, and it is recommended to send it for repair and after-sales treatment.

If your Mate 40 suddenly has a black screen, you can check if the phone is out of battery, or if the phone freezes and suddenly goes black.

Check your phone and remove magnets. If your phone does not use a holster or smart window case, it is recommended that you search for "holster" in the phone settings, click on the holster operation, and turn off the holster mode.

In this case, it is very likely that the system will crash, so in this case, you will need to redo the system to achieve good results.

The phone screen is suddenly black, then you should check whether the phone is out of battery, if there is no power, connect it directly to the power supply, then you can turn on the phone. If it is not because of the power problem, then it is very likely to be a crash, and you can force a restart.

The fake phone you bought.

Now Huawei only has the Mate30

The latest is called P40

The Mate40 will wait until November.

There will be.

It's impossible to buy it now.

Don't play with your phone while charging, and don't let multiple apps run in the background, you can give it a try after the screen goes black.

Whether it can be restarted, it should be no problem if it can be turned on.

If you reboot and this problem is solved, I don't think it's a big deal.

This is a failure of the mobile phone hardware, it is recommended to go to the after-sales inspection to deal with it.

Huawei Mate40 has a green screen storm again? I want to say that Huawei is not to blame this time!

Huawei mobile phone, if you use it for a long time, the phone may be broken before the screen will suddenly go black, you can turn off and restart, maybe it is out of power, no computer will also have a black screen, if the power is sufficient, the screen is black, it means that your phone may be broken. You can turn it off and restart it, if it can't be turned on, it means that your phone is broken.

The black screen may be because the temperature of the mobile phone is too high, or there is a little problem with the internal system of the mobile phone, at this time, you should go to the professional after-sales service to check it.

Huawei mobile phone boot black screen, then try to be able to connect**, can be connected may be broken screen can not see, if it can't be connected, it may be a mobile phone system problem, use the computer to flash the machine to try, if it still doesn't work, it may be a problem with the mobile phone and need to be taken to a professional mobile phone repair shop for maintenance.

Press and hold the power button for more than 10 seconds to see if you can force it to turn on. If you are able to turn on your computer, please back up your important data and perform a factory reset or upgrade to the latest software version. If you can't force it to turn on, please check whether the phone has power, there will be a charging indication when plugged in when the power is empty, it may not turn on immediately when it is just charged, please continue to charge for a period of time, and then try to turn it on.

1. Tap [Accessibility] in the phone settings menu. Headlines Lai Yan.

2. Click [Quick Start and Gestures]. Lai Yan headlines.

3. Click [Bright Screen]. Headlines Lai Yan.

4. Turn on your favorite way to turn on the screen. Lai Yan headlines.

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The black screen of the mobile phone is one of the faults that are often encountered in the maintenance of mobile phones, and the black screen can be divided into two types: one is the black screen in use, and the other is the black screen in standby.

Here are some basic causes and solutions that cause black screens. Most of the black screens in use are caused by their own third-party software, and this situation rarely occurs with the machine.

It can also be subdivided into two kinds: one is that there is a problem with the software itself, the software itself is unstable, or it does not match the mobile phone system, etc., this is easy to solve, just uninstall it;

The second is the conflict between the software and the software, which is a little more troublesome to solve, and requires a software to install and uninstall the software in the experiment. If you find it, uninstall it, and the problem will basically be solved.

As for the black screen in standby, let's talk about the standby principle first, because most of the straight board machines have a power-saving circuit design: the mobile phone will automatically turn off the screen if it can't detect the key trigger signal for a long time, that is, standby, when the user needs to use the mobile phone, a button will activate the power-saving circuit, and then the screen lights up! The reason for the black screen is often reflected by the delay of the screen triggering circuit.

That is to say, the mobile phone system has issued a command to light up the screen, but because the circuit is delayed, it is not sent successfully, and the screen is not lit successfully, but the mobile phone system thinks it has been lit, so it causes a black screen.

You can give it a try. The phone screen is black, don't be in a hurry to restore it first. Use a friend's mobile phone to call your own **, if you can get through, you can also answer normally.

That's basically the problem. There is no need to panic when a black screen appears, and there is no need to pick the battery immediately. You can leave the phone for about 3 minutes without pressing any keys on the phone, and then press the button again to activate the screen.

(1) If there is no important data, it is recommended to restore factory settings, method: press and hold the volume up button for about 10 seconds when booting up to enter the main interface of recovery (note, do not charge or connect to the computer that is turned on) and select factory reset and clear cache;

2) If (1) fails, it is recommended to use eRecovery to restore it, charge the phone when it is turned on or connect to the computer that is turned on, and press and hold the volume up button for about 10 seconds to enter the main interface of eRecovery, select "**latest version and restore"->** and restore", note, try to use the wifi hotspot at home, erecovery currently does not support wifi hotspot that requires webportal authentication (that is, you need to enter the mobile phone number +Captcha for wifi hotspot).

3) If (1) is not executed in advance, but (2) is used directly, and the computer still cannot be turned on after recovery, the method in (1) can be used to double clear the data;

4) If the above methods are not good, please go to the after-sales service.

If the phone screen is black, please press and hold the power button for more than 10 seconds to force restart the phone to try to solve the problem, the force restart will not erase the phone's data. Please check whether you have flashed your computer or used third-party flashing software. Unofficial systems can affect the stability of your phone.

Multiple apps are running at the same time. Multiple apps running in the background can take up too much memory or other resources, and your phone may be overloaded. Please open the background and close the applications that you do not need to use in time to release system resources.

Check whether system files have been deleted by mistake. When the system is running, it cannot find the corresponding file, which causes confusion and causes the phone to malfunction. Back up your important data and try to restore the system version of your phone via Huawei Assistant or eRecovery.

Check if the phone is out of battery after the phone screen is black, if the battery is normal, then the phone is dead. You can press and hold the power on button plus the volume plus or minus button to force the phone to restart, and the phone can resume operation.

Huawei mate40 suddenly went black, if this is confirmed not to be a battery problem, then you can only go to the after-sales service department for maintenance. Huawei Mate is a Huawei high-end series model, there are few problems, I used the last Huawei for 4 years, and then it was also a black screen and the motherboard was broken.

MATA40 is an electronic product manufactured by Huawei.

There are several cases of a sudden black screen:

1. The battery is drained.

2. The screen is damaged.

3. The hard disk is damaged.

Specifically, you can check it at the maintenance outlet.

Hello, the motherboard of the mobile phone is broken or the display is broken, this kind of repair has to be repaired at Huawei's special after-sales maintenance point.

Hello, blue screen, black screen, white screen, freeze, stuck, it is recommended to press and hold the power button for more than 10 seconds to force restart the phone.

Huawei Mate40 has a green screen storm again? I want to say that Huawei is not to blame this time!

Summary. Black screen cause check and solution method 1: 1. Check whether the card orientation of the mobile phone card and memory card (SD card) is correct, sometimes abnormal installation will also lead to automatic black screen.

Method 2: 1. Check whether the phone has power (check the charging interface by plugging in the charging interface), less than 2% of the battery will cause an automatic black screen. Method 3:

1. Software problems cause automatic black screen, please confirm whether there are any incompatible applications installed recently that cause the phone to suddenly shut down abnormally. Users are advised to perform a factory reset and upgrade to the latest software version. (Please back up key data in advance before restoring factory settings) Press and hold the power button for more than 10 seconds to force restart the phone, if the phone can enter the standby interface normally, then repair the phone through the normal upgrade and recovery operation mode.

If it still won't turn on and can't restart, repair the phone by forcing the upgrade to resume the operation.

My Mate 40 suddenly went black?

Black screen luggage rental cause check and solution method 1: 1. Check whether the card orientation of the mobile phone card and memory card (SD card) is correct, sometimes the installation is not normal, it will also lead to an automatic black screen. Method 2:

1. Check whether the power of the mobile phone is trouser bend (by plugging in the charging interface to see the charging interface), less than 2% of the power will lead to an automatic black screen. Method 3: 1. Software problems cause automatic black screen, please confirm whether there are any incompatible applications installed recently that cause the phone to suddenly shut down abnormally.

Users are advised to perform a factory reset and upgrade to the latest software version. (Please back up key data in advance before restoring factory settings) Press and hold the power button for more than 10 seconds to force restart the phone, if the phone can enter the standby interface normally, then repair the phone through the normal upgrade and recovery operation mode. If you still can't turn on the phone and can't restart, you can repair the phone by forcing the upgrade and recovery operation.

How to force an upgrade to resume operations.

Dear, shut down and restart.

I recommend you go to a mobile phone repair shop.