The phone automatically turns black and on from time to time, what s going on

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.

Envoy. Most of the black screens in use are caused by their own third-party software, and this situation rarely occurs with the built-in machine. It can also be subdivided into two types: one is that the software itself has problems, the software itself is unstable, or it is in hand.

Machine system mismatch and the like, this is easy to solve, 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.

problems. 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.

If you are using a vivo phone and the screen does not turn off automatically, please check the following methods to troubleshoot:

1. The folding screen model does not automatically turn off the screen after closing the screen, you can enter Settings - Display and Brightness - turn on "Turn off the screen after closing the screen";

2. Go to Settings - Quick & Assist - Intelligent Somatosensory - Smart Screen Off to confirm whether "Smart Keep Screen On" is turned on, and if so, turn it off;

3. Go to Settings - Display and Brightness - Auto Lock Screen, and confirm whether the automatic lock time is set for too long;

4. Restart the device and try again.

5. You can enter the Settings--System Management--Backup & Reset--Restore All Settings--Restore, Restore Settings option. This operation will not delete the ** file, it will cancel the password, restore all settings, including: set wallpaper, unlock style, wifi, default open program, etc., and the logged in software account also needs to be logged in again.

Note: Go to Cloud Service - Device Cloud Backup - Backup Data Type - System Data - Return - Back to Back Up Now to back up some system settings and desktop layout; Cloud service--Data synchronization--Turn on WLAN, Bluetooth, etc. to synchronize data to cloud service.

Step 1 6

The first thing you need to do is find and open Settings on your phone.

Step 2 6 Then in the settings, find Screen Off & Lock Screen and tap on it.

Step 3 6 Then we see in the screen off and lock screen interface to see if the "lift the screen" and "double click the screen and off the screen" switch is on, open and off, these two functions are turned on, you usually use the mobile phone may often automatically turn on the screen.

Step 4 6 Then tap on Auto Lock Screen.

Step 5 6 Then we set the automatic lock screen time, this everyone sets according to their own situation, and it is best not to set the time too long.

Step 6 6 and then go back to the screen off and lock screen scroll down to find the anti-accidental touch mode and turn on the switch at the back.

It should be a problem with the phone setting,There are a few seconds to turn off the screen,And then there are 30 seconds a minute, etc.,You may set it to be always-on,So it won't turn off the screen.,Go and take a look.,Then change it.,If it's not a problem with the settings.,It's a problem with the phone.,You can only go to repair.。

If you have a problem with the phone setting, open the settings, there is a bright screen time setting in it, and if you set the time, you can automatically turn off the screen.

Set up a questionSet up a question.

Summary. Hello! The screen of the mobile phone will be black and bright for a while, which is caused by the automatic brightness adjustment turned on, and the function can be turned off. It is divided into 2 steps in total, and the specific steps:

1.Turn on Settings Display and Brightness.

2.Open Settings and go to the Display & Brightness page.

3.Turn off auto-adjustment.

4.Just turn off auto-adjustment.

What's the matter with the phone suddenly the screen goes black and lights up again.

Hello! Or take the mobile phone screen to be dark and bright for a while, which is caused by the automatic brightness adjustment turned on, and you can turn off the function. It is divided into 2 steps in total, and the specific steps:

1.Turn on Settings Display & Brightness2Open Settings and go to the Display & Brightness page.

3.Close the self-hand group shed dynamic adjustment 4After closing, it can be automatically adjusted.

I asked the number to dig to talk about vivonex rear fingerprint, that is, the phone suddenly went black from time to time, no response, and then judged that it was slipped and touched for a few minutes or more than ten minutes and used normally.

It's just that the screen suddenly went black and kept pressing the boot button, and I didn't respond to the envy, but after a few minutes or ten minutes, the screen turned on again, and after two or three hours of normal use, what is the situation of Shi Ling?

If it's not a setup issue. Then it could be a battery issue. Method 1: Press and hold the power button to restart the phone; 2. Go to Settings - System Upgrade or Settings - My Settings to detect the latest version; 3. Replace the system theme application; 4. After the operation, it is still the same, in order not to affect the normal use, Jianwan Pure Proposal to bring the buried letter to the vivo customer center in Dangtansui for testing and processing, this situation has anything to do with the use of vivo's origin system.

If you have updated the system, it is not excluded that the phone memory is insufficient. Because the software will run out of memory and the screen will also go black.

But there are still 80 g in the memory of the mobile phone, will this have anything to do with the hardware in the mobile phone, because I bought a second-hand mobile phone.

Out of memory refers to running memory. It's different from the capacity of a mobile phone... It's about the same as a computer's memory module.

It is the running space when working with software programs.

The 80g you said is the storage space.

This is 6 128g, which may be a bit related, because I am running at the same time as King and Peace Elite without cleaning the background.

Then you set the background running program permissions. Could be a little better.

Okay, thank you ha.

The reasons for the automatic black screen and bright screen of the mobile phone include poor screen contact, battery problems, etc.

1. Poor screen contact.

It is the loosening of the contact of the mobile phone screen, which is usually caused by the mobile phone being bumped.

2. Battery problems.

It is common for many mobile phones to have repeated black screens after using them for a long time, and the main reason is that the effective use time of the mobile phone battery is 1 year, and excessive use has led to the aging of the mobile phone's battery and insufficient voltage.

The dangers of mobile phones to the body are as follows:

1. Impaired eyesight.

Playing with mobile phones for a long time can cause the eyes to be in a state of excessive fatigue, which can easily cause visual impairment and lead to vision loss. When playing with a mobile phone, improper posture, such as lying down and playing with the mobile phone, can also affect vision and produce adverse consequences such as myopia.

2. Cause cervical spondylosis.

The vast majority of group members are in a state of bowing their heads when playing with their mobile phones, which is easy to cause degeneration and hyperplasia of the cervical spine, resulting in an increase in the probability of cervical spondylosis.

3. Deformation of little knuckle.

If you use your phone in one position for a long time, your finger joints may be uncomfortable, stiff, and painful, and the muscles and fascia near your joints may become inflamed. If left uncontrolled, inflammation may lead to deformity of the little knuckles. <>