What s going on with the black screen of the phone not responding?

The black screen of the mobile phone is generally caused by the following factors:

2. There are too many cache files It is recommended to clean the cache.

3. If there is a problem with the mobile phone system, you can back up the data to the customer service center for free upgrade or flash.

4. The abnormality that occurs after the mobile phone is dropped needs to be tested by the customer service center.

Find a charger to try, if the charger doesn't work, press the function key to enter the background mode, if you can't get in, it means that there is a problem with the hardware, which needs to go to the repair shop to disassemble the machine to check.

Turn off your phone and restart it to give it a try.

Troubleshooting method for the black screen of vivo mobile phone:

1. Force restart your phone.

Try force restarting your phone to see if it resumes, and check if the power and volume buttons are stuck in the case.

Force Restart Method:

Models released before September 2017 (models before x20): Press and hold"Power button"More than 12 seconds.

Models released after September 2017 and new models released later (x20 and later): Press and hold at the same time"Power button"+"Volume down key"More than 10 seconds.

NEX 3 NEX 3S: Press and hold the top round button for more than 10 seconds.

2. Upgrade the system version.

Please upgrade your phone to the latest version to view.

3. Reset all settings.

*Note: Restoring all settings will not delete any data or **files, only all settings of the phone will be restored, some third-party application accounts need to be logged in again, please confirm that it does not affect the use of the software before operating.

4. Service center testing.

If the above methods cannot be solved, please back up the mobile phone data in advance, bring the mobile phone and purchase voucher to the vivo customer service center for testing, customer service center address: enter the vivo official website vivo**app--my-service outlets or vivo official website web version--scroll bottom--service support--service outlets query--select provinces and cities to query the customer service center address. It is recommended to contact ** in advance before going to avoid empty running, plan the itinerary reasonably, and travel safely.

Take Huawei P40 mobile phone, EMUI10 system as an example, the reasons and solutions for the sudden black screen of the mobile phone:

1. It may be that the battery of the mobile phone is suddenly too low, causing the mobile phone to turn off.

Solution: Try connecting the phone charger and turn it back on after a while.

2. It may be that there are too many tasks running in the background of the mobile phone, and the memory of the mobile phone is not enough, which eventually leads to the phenomenon of the mobile phone crashing.

Workaround: Try waiting for your phone to recover on its own, or force restart your phone.

3. There may be some incompatible software in the mobile phone system, which causes the mobile phone to be unable to be used normally.

4. It may be that there is a malfunction in the mobile phone system, resulting in some functions of the mobile phone cannot be used normally.

Solution: Try to update the system of your phone, or back up your phone data and then restore your phone to factory settings.

5. It may be that some hardware related to the screen in the mobile phone has been damaged, resulting in a black screen on the mobile phone.

Solution: It is recommended to contact the after-sales service of the mobile phone and let the professionals check and repair.

This answer applies to most brands of smartphones, such as Huawei and Apple.

1. Conduct a self-test on your phone. Most brand phones have a deep sleep mode, and once you enter this mode, it often causes the phone to go black and cannot be turned on.

Solution: Press and hold the power button of the phone for more than 10 seconds to see if you can force restart. Or press and hold the volume up button and the power off button at the same time, and feel the phone vibrate and force restart. Generally speaking, this step can solve the problem of black screen on most mobile phones.

2. The battery is dead or malfunctioning. Solving this problem is as simple as connecting the charger for a while and then trying to turn it on. You can also directly buckle the battery and charge it with a universal charger to see if the connector of the battery is loose.

If it can be turned on after charging, it means that the battery is just dead. If it still doesn't work, you can try a different battery. Check if the battery is faulty and no longer has power.

3. In addition, a violent fall on the mobile phone may also cause the mobile phone to have a black screen. This is a troublesome situation, and it is likely that the hardware of the phone is malfunctioning, so it will have to be repaired.

Extended Information: Common troubleshooting of mobile phones:

Symptom: The phone crashes.

1. There are too many programs running in the background.

Open an app, after using it, most people return to the desktop of the phone by pressing the back button of the phone, thinking that this is to quit the app, but in fact there is no real exit from the app. As a result, more and more apps run quietly in the background over time, and when the number reaches a certain level, it will cause the phone to crash.

Many people will be too lazy to upgrade the app, but when the app version is too low, it will be incompatible with the mobile phone system. In the same way, when the mobile phone system version is too low, it will not be able to meet the requirements of APP operation. As a result, there will be a flashback.

3. Mobile phone poisoning.

Mobile phone application software installed from unknown channels** may carry malicious **, resulting in mobile phone poisoning or interception by anti-virus software.

4. Software conflicts.

There are too many software installed on the phone, and due to the different degrees of optimization of each, it is easy to have conflicts and crashes. In particular, if there are too many installations of the same type of software, this phenomenon is more likely to occur, after all, there is a competitive relationship between each other.

Solution: Check your phone once in a while, and uninstall some apps in time if you don't use them. Try not to install too much software of the same type, and it is recommended to replace it with a small program if you use it occasionally.

This is mainly for Android phones, due to the characteristics of the Android system, the phone will produce more and more cache files, and the phone will crash when it exceeds a certain load.

Solution: Regularly clean and accelerate the mobile phone, and clean up the application software that occupies a large amount of memory.

The phone suddenly went black and didn't react, probably in the following situations:

1.If the phone does not respond when charging after the screen goes black, and there is no response when you press the power button many times, it may be that the motherboard of the phone is damaged or malfunctioning.

2.You can force restart the phone after the phone screen goes black, if you can reboot it, it may be that the phone cache data is too much, that is, the phone garbage accumulates too much and blocks the system operation.

3.It may be caused by the low version of the system, try to upgrade the system.

4.Sometimes when the battery is aging, it will also cause the mobile phone to repeatedly go black, and you need to replace it with a new battery.

5.The black screen of the mobile phone caused by virus invasion is frequent, and the antivirus software needs to be checked and killed by the virus. It should be noted here that when the mobile phone is in any software, it is best to go through the software store that comes with the mobile phone to ensure the security of the mobile phone.

6.If the phone screen is black due to damage or poor contact with the internal components of the phone, it is best to send it to the mobile phone after-sales repair shop.

Let's get a new phone, the new phone doesn't cost much.

In your case, you can try to press and hold the power button and the volume up button at the same time, and the phone will be forced to restart in about 20 seconds, if this still doesn't work, it is a system problem, and then you can only go to the after-sales flash.

There is no response to the black screen when the boot is turned on,In this case, it is possible that the state of matter is the hand cover Yuyuan machine is dead,It is recommended to force restart the phone to try,If it doesn't work,It may also be out of power,Charge the phone,See if you can disassemble and make a decision。

With the widespread popularity of smartphones, it is normal for mobile phones to have a black screen, and there are many reasons for this phenomenon:

The phone is overloaded with computing, and the screen will go black when there is a system failure or stuck.

When the phone is in standby mode or working state for a long time, a black screen will appear when there is a system computing failure, burn failure, or data loss.

When the mobile phone is in high-power computing for a long time, when the heat generated by the CPU exceeds the limit of the system, the background program will be forcibly closed, and the black screen phenomenon is prone to occur.

The appearance of a black screen is a very common thing in the use of smart phones, when this happens, first confirm whether it is because the mobile phone is out of power shutdown phenomenon or the black screen phenomenon caused by the system crash or boot, if it is the former, try to charge the mobile phone in the shutdown state, if the latter should immediately use the manual forced shutdown of the nuclear machine, generally the mobile phone will have a reset key, use the reset key to force a restart, or use the volume key - and the combination of the boot key, enter the forced restart system, and generally solve the problem. If it still does not solve the problem, it is recommended to go to the after-sales site of the mobile phone brand for inspection and maintenance.

The reason may be that the screen is broken, so it can't be turned on, you can check whether the phone screen is broken, if not, you can also check it in the following way:

1. Regarding the above problem, first check whether the battery level of the mobile phone is normal. (As long as it can be more than 55%).

2. If the above check battery power is normal, press and hold the power button for about ten seconds to see if it can be turned on normally.

3. If you still can't turn on the phone after the above restart, then this problem may be an open circuit problem in the motherboard circuit or a hardware problem in the motherboard, in this case, you really have to go to the mobile phone repair shop to ask a professional to help you deal with it.

The solution to the black screen of the general phone.

1. It is very likely that the memory of the mobile phone is not much, which causes the mobile phone to be too stuck when it is running, and there will be a black screen now, so the cover should leave a certain amount of memory for your mobile phone.

2. It is also possible that the mobile phone has been dropped by you too much, resulting in damage to the parts in the mobile phone and poor contact, etc., it is recommended to take the mobile phone to the mobile phone repair department for repair.

3. If there is too much software in the mobile phone, it will also lead to a black screen, and there are some software conflicts in the mobile phone, resulting in a black screen when running.

4. There is also the quality of the mobile phone itself, which will naturally become stuck and black after a long time, so it is useless to repair, and you can consider changing a mobile phone.

In this case, you charge your phone for a while, and then try to turn it on and see if that solves the problem.