The phone will always turn off automatically when there is still power, what is the matter with the

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.

Black screen in standby,Let's talk about the standby principle first,Straight board machine because most of them 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 you need to use the phone, a button will activate the power-saving circuit,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.

Tell you it's time to change your phone.

1. Check whether the battery of the mobile phone is sufficient.

Keep your phone fully charged, low battery will cause automatic shutdown, it is recommended to charge it in time when the battery is about 20% left.

2. Check whether the power button and volume button are touched by mistake.

If the power button and volume button are stuck in the case, or if they are squeezed in the pocket for more than 12 seconds, it may cause the phone to restart, be careful to avoid squeezing the buttons.

3. Check your phone settings.

Go to Settings - Quick & Auxiliary - Timing Tasks - Timing Power On and Off to see if the timer power on and off task is set.

4. Check whether the mobile phone is in an environment where the temperature is too high or too low.

If the temperature is too low or too high, the low temperature or high temperature protection function of the mobile phone will be triggered, resulting in automatic shutdown. Please try to keep your phone at an ambient temperature of 0 35.

5. Uninstall incompatible software.

If you have installed the software through a non-app store, it may be incompatible and cause the phone to shut down or restart, it is recommended to back up the app data and uninstall the software before trying.

6. Check whether the storage space is sufficient.

It is recommended to use iManager to clean up the storage space of the mobile phone in time, and uninstall the software that is not commonly used to keep the remaining storage space at more than 20%.

7. 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 re-logged in, please confirm that it does not affect the use of the software before operating, important data can be backed up in advance;

8. Repair the system.

Enter"System Repair Mode", and then tap"Install the system software"Enter"Networking updates to the latest version", click"OK"(It is recommended to connect the charger) - Connect to the available wifi, when the upgrade package is detected, tap"** and install"Update your phone's system.

Ways to enter System Repair Mode:

Models released before September 2017 (models before x20): Press Shutdown status"Power button"with"Volume up key"Enter recovery mode;

Models released after September 2017 and new models (X20 and later): Press Shutdown status"Power button"with"Volume up key"Enter fastboot mode, then enter recovery mode through the menu selection, select: install system software, and then select:

Networking updates to the latest version

NEX 3 NEX 3S: Press and hold the top round button for about a second in the shutdown state, then press and hold the volume up button to enter fastboot mode, press the volume down button to move to"Go to Recovery", press the power button to confirm to enter recovery mode.

9. Service center testing.

If the above methods fail to solve your problem, you can back up your mobile phone data in advance, bring your mobile phone and purchase voucher to the vivo customer service center for testing, pay attention to WeChat***"vivo" or "vivo customer service" to inquire about the service center address**, it is recommended to contact before going to ensure that there is a staff to receive and then go over, so as to avoid delaying precious time and running in vain.

1.The protection circuit in the lithium battery is overly sensitive, so the current will be cut off as soon as it is large. 2.

The battery itself is aged. 3.There is dirt on the metal sheet in the contact area of the battery, which causes poor contact with the power supply.

4.The joint between the battery and the phone is prone to loosening. 5.

Hope it helps.

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The phone is charged but always turns off automatically? The reasons for the general automatic shutdown may be as follows: 1

The protection circuit in the lithium battery is overly sensitive, so the current will be cut off as soon as it is large. 2 The battery itself is aged. 3. There is dirt on the metal sheet at the contact point of the battery, which causes poor contact with the power supply.

4 The joint between the battery and the mobile phone is prone to loosening. Use star cards to enjoy traffic multiplication; The more the traffic is used, the more you swipe the **, play the whole network, easier and more free, you can log in to the Guangxi Telecom online business hall to view. Customer service number 156 will answer for you.

Then this phone is a problem with the motherboard

This is the mobile phone battery life has arrived, the number of charging times is too much, or often playing with mobile phone charging, resulting in a shortened battery life, or the weather is cold and there is a lot of power to shut down, replacing the battery is the only option, or the battery bulge will damage the motherboard, must be dealt with in time, otherwise it will be a big loss.

You can first clean up the memory of the mobile phone whether it is caused by too much garbage and poor operation, and then whether it is infected with a virus can be disinfected, if it is really not alleviated, you must find a professional maintenance personnel for maintenance.

Optimize the system. Or send it for repair. Either the battery is aging. Get a new battery.

That's a problem with the phone, it's time to change.

The phone can be turned on again after a while, turned off again after a while, turned on again, and turned on again after an hour, and there is still electricity, and there is 100%.

What happens when the phone has power, but it keeps turning off automatically?

1. Please confirm whether the power button has been touched by mistake. Press and hold the power button for more than 10 seconds, and the phone will shut down and restart. 2. Please keep your phone fully charged.

The battery will automatically shut down when it is low to a certain extent. 3. Please confirm whether the timer switch function is turned on. Please click "Timer Power On" to check whether the "Timer Power On" and "Timer Power Off" switches are turned off.

4. Overheating of the mobile phone will also cause automatic shutdown. Huawei phones have built-in thermal protection, which automatically shuts down if the motherboard temperature is higher than a certain level after using a high-load program for a period of time. 5. If the ambient temperature of your mobile phone is too low, it may also cause the chemical activity of the battery to deteriorate, and the battery will not be durable, and it will easily shut down automatically under low power.

6. Some third-party apps may restart the phone due to their own design problems or compatibility issues, so it is recommended to uninstall suspicious apps and third-party butler apps. If the problem persists, it is recommended to factory reset your phone after backing up important data. 7. If none of the above is true, it is possible that the battery is aging, and the battery aging may occur more frequently when the power display is still left, and it will automatically shut down.

1. The battery is dead, but the phone will retain 10%.

One or two batteries, but once used, it will automatically shut down.

2. The battery is loose, and a slight collision will cause the battery to have poor contact with the hand wax machine.

3. The system memory is insufficient, resulting in a crash.

4. It may be a virus. You can use the mobile phone security guard to scan and disinfect the mobile phone first, and clean it up.

5. Conflict between the software and the mobile phone program. Accompany stupidity.

6. The software is not compatible with the current version of the wheel system.

7. In the process of use, the system file was deleted by mistake.

The reasons for the general automatic shutdown may be as follows:

1.The protection circuit in the lithium battery is overly sensitive, so the current will be cut off as soon as it is large.

2 The battery itself is aged.

3. There is dirt on the metal sheet at the contact point of the battery, which causes poor contact with the power supply.

4 The joint between the battery and the mobile phone is prone to loosening.

1. Check whether you have touched the power button and volume button by mistake, if the power button and volume button are stuck by the protective case, or if the rubber is squeezed in the pocket for more than 12 seconds, it may cause the phone to restart, pay attention to avoid squeezing the button. 2. Go to Settings - Quick & Auxiliary More Settings - Timing Tasks - Timing Switching on and Off to see if the timing switching task is set. 3. Whether the equipment is in an environment where the temperature is too high or too low

If the temperature is too low or too high, the temperature protection function will be triggered, resulting in an automatic shutdown or restart. It is recommended to keep the phone at an ambient temperature of 0 35 as much as possible. 4. Uninstall incompatible software.

If you install the software through a non-app store, it may be incompatible and cause the phone to be turned off or reopened, it is recommended to back up the app data and uninstall the software before trying.