What s going on with the black screen of the Huawei phone only showing the flag

Generally, it is a line arrangement.

or caused by deterioration of the resistance of the display circuit. If the display screen is going to be broken, and the display screen is not in good contact with the motherboard, my mobile phone used to be, but it was a flower screen, just knock a few times, and then the display screen will not be replaced.

It may also be that there is a problem with the software of the mobile phone, which is the same as the computer; There is also software in the machine.,There will be problems.,It's estimated that if there is no problem with the hardware,Just use the software of the mobile phone to brush it once,

Generally, smartphones have this problem, it may be that there are too many programs running in the background, do you feel that sometimes the mobile phone response speed is very slow? At this time, you can try to restart the phone, or it is possible that the phone has been used for a long time and the parts are aging.

Huawei phones. How about a black screen that only shows the flag? Black Screen Reason Check and Solution.

Method 1: 1. Check the mobile phone card and memory card (SD card.

The direction of the card is whether the letter is correct or not, and sometimes the installation is not normal, which will also lead to an 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. It is recommended that users do a factory reset.

And wait to upgrade to the latest software version. (Please back up in advance before factory reset.)

Good key data).

If the phone can enter the standby interface normally, the phone will be repaired and slipped 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.

2. Common upgrade and recovery mode.

1) Restore factory settings.

In the operation steps, in the phone settings, click "Backup & Reset" - > Factory Reset" - >Reset Phone" (as shown in the three pictures below), the factory reset will be completed after the phone is restarted, and then it will automatically restart normal use.

Operation steps (to ensure that the mobile phone is connected to wifi and can access the Internet), "Settings" - >System Update" - >Check for Updates" - >Select the new version" - >Select ** and install "Start the upgrade".

3) Forced upgrade recovery mode (SD card forced upgrade).

For details, please follow the steps below:

Step 1: Prepare an SD card with a capacity of 2G or more to ensure that the available space is larger than the size of the upgrade package, and it is recommended to use brands such as Sandisk, Kingstone, or KingMax.

Step 2: Create a "dload" folder in the root directory of the SD card (note: for the telecom version of Honor, please create a "dload" folder in the root directory of the internal memory card), and put the "good software upgrade package" into the dload folder;

Step 3: Plug in the charger, press and hold the volume up and down buttons, and press and hold the power button for more than 10 seconds to start the phone. The phone will enter the SD card to force the upgrade, if the low battery cannot be started because the battery is exhausted (the low battery icon is displayed), charge it before upgrading to ensure that the phone can start, please insert the charger during the upgrade process, otherwise the upgrade will fail if the battery is insufficient.

Step 4: After the phone enters the upgrade, the upgrade will be completed automatically, the upgrade time is about 5 minutes, if the upgrade fails, you can try to try again.

Method 4: 1. Hardware problems lead to automatic black screen, in this case, it is a hardware fault that cannot be eliminated by the above 3 methods (such as internal power cord contact disconnection, etc.), and it will be permanently unable to boot. You need to find Huawei after-sales service.

outlets to conduct hardware testing.

Hello, landlord. In this case, it should be that your phone is stuck in the boot logo. You can keep pressing and holding the power button of your phone to force restart your phone.

See if you can enter the system normally. If the phone is stuck here because of system reasons. Generally, after the force restart, you can enter the phone normally.

If it still can't return to normal after forced restart, it is still stuck in the boot logo. In this case, there should be a problem with the system. It is recommended that the landlord can wait for the mobile phone to run out of power and turn it off automatically.

Then charge it again and try to turn it on. Let's see if that can be fixed. After all, if you go directly to Shuangnaxiang code.

The data on your phone may be erased. For some personally important data. It is likely that there is no way to recover.

But if that doesn't work either. It should be that there is a very serious problem with the system of the phone. In this case, if you want to fix it, you can only go to Shuangqing phone.

You can wait until your phone is turned off. Press the power button and the volume plus button at the same time. Enter your phone's REC mode.

After that, if it is the Chinese version, directly choose to clear phone cache data and restore factory settings. In this way, you can erase your phone data and restore it to its factory state. For problems caused by the mobile phone system.

Generally, it can be solved by double cleaning operation.

But if the landlord still has no way to solve it after clearing the mobile phone. It is recommended that you can upgrade to flash your mobile phone when you are clear. After the double cleaning operation, the mobile phone is swiped by the line and the system of the mobile phone is updated by the line brush.

If after a successful refresh of the system. This should be the solution to this problem.

The phone becomes a black and white screen, and the color display is not normal, you can check it as follows:

1.Check if sleep time for healthy phone use is turned on.

Downtime function: Settings > Healthy use of mobile phones > Sleep time Downtime, after turning on this setting, when the phone reaches the set sleep time, the screen will turn black and white.

2.Check to see if the eBook is open.

3.Check if the color correction switch is turned on:

4.Check if the color inversion feature is turned on:

5.Check to see if Dark Mode or Dark Power Saver** is turned on.

Go to Settings > Battery > Dark Power Saver**If the switch is on, turn off the switch. (If it is not found, the mobile phone does not support this function, check other scenarios).

6.Go to Developer Options and check if the Mock Color Space switch is turned on, you can do the following:

7.If none of the above troubleshooting resolves, you can try restoring all settings. If the problem persists after all settings are restored, we recommend that you back up important data in advance (QQ and WeChat need to be backed up separately) and bring your purchase voucher to the Huawei Customer Service Center for testing.

The reasons for the black screen of the mobile phone are: memory problems, mobile phone film problems, application software conflicts, viruses in the mobile phone, battery problems, system software failures, screen or backlight damage, contact problems, root problems, and overheating of the mobile phone.

Memory issues. When your phone stores too many things, it will not only slow down the running speed considerably, but it is also easy to go black during the running of the program. Generally speaking, when 80% of the phone's memory is occupied, it may freeze or go black.

The solution is to uninstall software that you don't use often.

Mobile phone film problems.

When the mobile phone is filmed, if the distance sensor is blocked, it will affect the lighting and information of the mobile phone screen. Therefore, it is still reliable to find a professional.

Application Software Conflicts.

There are many apps installed in the phone, but some apps are impulsive, and when running one of the apps, the screen suddenly goes black or quits for no reason. In this case, you need to look for and uninstall this software.

Virus in the phone.

There are many mobile phone virus traps, and if you don't pay attention to it, you will be easy to fall for it. After being hit, some virus Trojans will modify the mobile phone system, causing the mobile phone to malfunction. In serious cases, it can also steal our private information. It is necessary to have a regular antivirus on your phone.

Battery issues. The battery lasts too long, or the battery is overcharged and discharged, resulting in a shortened battery life, which in turn leads to a black screen. This change the phone, or change the battery, you are free.

The screen or backlight is damaged.

The LCD display needs to be driven by a backlight, and if the LED backlight is damaged, it will cause the mobile phone to suddenly go black.

Solution: LCD screen can be solved by replacing the backlight, while OLED screen needs to be replaced.

Contact issues. When many people use mobile phones, there will be various bumps and bumps, and the injury of the mobile phone's shell is a trivial matter, once it affects the internal hardware, it will cause poor contact, such as loose screen cables or short circuits, etc., which will lead to a black screen. So if you want to solve this problem, you can only rely on good usage habits.

root issues.

Some friends are not satisfied with the system that comes with the mobile phone, and will root it themselves, and this behavior may accidentally delete the system files, resulting in the original system of the mobile phone can no longer be used, and the consequences may also cause the mobile phone to black screen, the solution to this problem is tricky, usually need to flash the machine, or go directly to the repair point for repair.

The phone is overheating. After opening too many programs, the CPU load of the mobile phone is too high, the mobile phone is hot, and the screen is not powered enough to cause a black screen, it is recommended to close other programs running in the background;

Take Huawei P40 mobile phone, system as an example, the reason and solution for the phone always has a black screen or a flashing screen:

1. It may be that the mobile phone has run too much software, resulting in the mobile phone being stuck, black screen and other phenomena.

Solution: Usually this situation is more common, you can try to press and hold the power button of your phone and it restarts.

2. It may be that there are some incompatible software in the mobile phone system, or the system of the mobile phone is faulty, resulting in some functions of the mobile phone cannot be used normally.

Solution: Try to delete the incompatible software in the phone, or update the phone system, or if necessary, you can also back up the phone data and restore the phone to factory settings.

3. It may be a hardware problem, and I usually don't pay much attention to the protection of the mobile phone, which leads to frequent damage to the mobile phone, resulting in poor contact between the wiring and the motherboard inside the mobile phone.

Solution: Try to contact the after-sales service of the mobile phone, and then find a professional to check and repair the mobile phone.

This answer is applicable to mobile phone models of most brands such as Huawei, Apple, Xiaomi, OPPO, etc.

This situation on the mobile phone should be the cause of the mobile phone system, it is recommended to restore the mobile phone to factory settings after backing up important data.

Your phone should have a system problem, it is recommended to enter the recovery mode to double clear the phone to see if it can solve the problem (press and hold the power button + volume down button in the shutdown state to enter the recovery mode, select wipe date factory reset to clear data and restore factory settings, and wipe cache partition to clear cache data, and then select reboot system now to restart the system).

At this time, there are generally two situations, one is that the mobile phone is stuck and the other is stuck. The other is that the machine is stuck, which causes a system bug, and the solution is that you need to try it first, and the shutdown button is forced to shut down for ten seconds. Then you can turn it back on first and see if it can be restored.

Whether it can be recovered or not is a simple matter of how easy it is. To recover, you also need to restore the factory settings again, turn on and press and hold the volume up button and add the power button. There is a choice below the text that appears, restore factory settings, and select factory reset.

The phone suddenly has a black screen, and the Huawei Honor logo keeps appearing, what should I do? It may be that your phone is running low on battery or that there is a problem with its CPU, or it may be that there is a black screen, because you have too much software, the system is relatively stuck, and you can turn it off and charge it again.

The situation is that there is something wrong with your system, maybe you deleted some files by mistake, so it is recommended that you go to flash the machine, brush the system, and brush the body brothers.

This is a problem with the installation system of the phone, and you have not updated the new phone system.

It means that there is too much garbage on the mobile phone, and you should clean up the garbage immediately.

Mobile phones can be said to have become a must-have daily necessities for most of us, if there is a problem with the mobile phone at any moment, I believe many people will not be able to stand it, and the black screen of the mobile phone is one of the most common problems, so why does your mobile phone have a black screen? Is there a solution?

2.Please check whether you have flashed your computer or used third-party flashing software. Unofficial systems can affect the stability of your phone. Please restore your phone to the official system.

3.Make sure that you have multiple apps open and running at the same time. Multiple apps running in the background can take up too much memory or other resources, and your phone will freeze or go black when overloaded.

Close or exit applications that you don't need to use or apps that consume a lot of power in a timely manner to free up system resources.

4.Please check if you have installed a certain software or clicked on an unknown link, and your phone freezes. You can keep pressing the power button + volume down button during the boot process to enter safe mode, uninstall the previously installed software or backup important data and restore factory settings to try to solve the problem.

5.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. Please back up your important data and try to do a factory reset.

6.Please check if you are using your phone for a long time or while charging. This can cause your phone to overheat and freeze, restart, or go black. Turn off background apps that you don't use often. Do not play with your phone while charging.