vivox9 suddenly black screen can t be turned on

vivo phonesThe black screen won't turn onYesHere's how to solve it

OnePress and hold the power button(Full screen needs to be pressed and held at the same time.")Lock screen key"And".Volume down key30 secondsTry restarting your phone.

2. Press and hold at the same time".Power button"And".Volume + keyWhen the word "vivo" appears, release the power button until it enters recovery mode, select it firstClear data(wipe data factory reset), wait for the interface to jump, and then select ".Reboot”（reboot system now）。

If the above method is stillFailed to solve the problem of turning on the phoneIt is recommended to bring a mobile phoneGo to the local vivo after-sales service center for testing and processing。The address of vivo after-sales service center can be found by entering the vivo official website - service network query, and selecting the province and city where it is located.

Steps:

2. Scroll to the bottom and click ".Service outlets inquiry

3. Select the province or city where you are located.

4. You can query the address of the after-sales service center.

Note: You can call ** first to confirm the after-sales working hours and plan the itinerary reasonably.

The following black screen can be divided into two types and corresponding solutions:

The black screen in use, most of which are caused by your own third-party software, can be subdivided into two types: one is that the software itself has problems, the software itself is unstable, or it does not match the mobile phone system, you can uninstall it; The second is the conflict between software and software, which requires a software to install and uninstall the software in the experiment, and uninstall it when you find it, and the problem can be basically solved.

Standby black screen,The reason is often that the screen triggers the circuit delay reflects,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,The screen is not lit successfully,But the mobile phone system thinks it has been lit,So it causes a black screen,Jinyi take it to the repair shop to test and repair it。

According to the situation of your phone, it is recommended to try the following methods to solve it first:

1. Charge the phone for 20 minutes, then press and hold the power button for 30 seconds.

2. Press and hold the volume up button and the power button at the same time in the phone shutdown state for 3 to 4 seconds, after the vivo phone logo appears, let go of the button to enter recovery mode, press the volume down button to select the system repair mode, press the ON key to confirm **latest version and install Select an available and stable wifi connection The phone will start to detect the latest firmware package After detecting the firmware package, select ** and install it, because the firmware package of the general mobile phone is relatively large, generally above 1GB, you can connect the phone to the charger, And connect to a stable and fast wifi before performing the above operations.

3. Press and hold the lock screen button and the volume plus key at the same time in the shutdown state, release the lock screen key when the vivo interface appears, continue to press and hold the volume plus key, enter recovery mode, press the volume down button to select clear all data, press the ON key to confirm, and wait for the interface to jump, then press the volume down key to select Restart and press the ON key to confirm.

If you still can't solve the problem after following the above methods, you can go to the local after-sales service center for testing and processing, and enter the vivo official website on the computer side - service - service outlets to check the nearest after-sales address and contact**.

If the screen of the mobile phone does not light up and cannot be turned on, it can be handled as follows:

1. After charging for 30 minutes with the standard charger and data cable, press the power button to see if there is a charging screen.

No charging screen: Please replace other chargers and data cables that can charge normally to confirm whether the charger and data cable are abnormal. If there is still no charging screen after replacement, it may be a fault of the mobile phone, it is recommended to bring the mobile phone, charger and data cable, and purchase voucher to the customer service center for testing.

There is a charging screen: Please press and hold the power button to try to turn on, if it can't be turned on, please follow the methods below to continue troubleshooting.

2. Confirm whether the mobile phone has been liquidated or damaged.

Liquid intake of the mobile phone: If the mobile phone has been automatically turned off, please do not try to turn it on, use a paper towel to absorb the liquid, and send it to the local vivo customer service center for testing as soon as possible.

Lost mobile phone: There are unstable factors after the mobile phone is damaged, it is recommended to send the mobile phone to the local vivo customer service center for testing.

3. Press and hold the "Power Button" for more than 12 seconds to force restart the phone.

4. Press the "Power Button" and "Volume Up Button" for about 5 seconds in the shutdown state, then let go, enter the recovery mode--Install the system software--Update the latest version of the network--OK--Connect the available wifi and charger, when the upgrade package is detected, click"** and install"Update the repair system.

5. If the above methods cannot be solved, please back up your mobile phone data in advance and bring your mobile phone to the vivo customer service center for testing and processing. (Vivo customer service center address query method: enter vivo official website vivo**app--my--outlet query or vivo official website web version--scroll bottom--service support--service network query--select the province and city to query the customer service center address).

Tips: It is recommended to bring relevant purchase vouchers (such as: purchase invoice, warranty card, ID card) when you go, and consult the staff of the consultation center in advance to ensure that the staff go again during normal working hours, avoid empty running, and pay attention to safety on the way to and from the service.

It may be caused by software incompatibility, the backup data is double-cleared, or it may be covered by the sensor.

Workaround:1Don't worry after the phone automatically shuts down, press and hold the power button first to see if it can turn on.

2.If that doesn't work, then press and hold the power button and the volume button at the same time and don't let go until you open and reboot the phone, select reboot system now, and restart the phone.

3.After booting up, clean up the phone software and junk and it's OK.

4.If it still doesn't work, it is recommended to send it directly to the repair phone shop for repair, or contact the after-sales service for repair.

The reasons for vivox90 black screen are as follows:

If the system of the mobile phone is faulty, press and hold the power button (for the full screen, you need to press and hold the "Power" button and the "Volume down" button at the same time) to restart the phone for 30 seconds.

Full screen: Press and hold the "Power" button and the "Volume Down" button at the same time for 30 seconds to restart the phone, please click to enter **Description. After the phone is restarted and restored, you can pull up the shortcut bar at the bottom of the screen and click "One-click Acceleration" to clean up the background running memory of the phone.

If the phone system is not the latest version, you can go to Settings System Upgrade to detect the new version and update it to the latest version of the phone.

Reasons and solutions for the black screen of your phone:

The black screen of the mobile phone may be a problem with the connection cable between the mobile phone screen and the motherboard, it may be that the contact is a little bad after falling, and sometimes it can be recovered, but if there is a slightly more violent shaking or a long time with the screen (such as looking at **) that causes the contact line to overheat, it may be a bad contact, so it is a little unstable. If it is detected that there is indeed a problem with the contact line, it is recommended that you repay the mobile phone directly, because it is generally more expensive to replace the mobile phone screen, manual costs and material costs, and it is not as good as the original after repair, and it is easier to break, so it is better to directly replace it with a new mobile phone. <>

Here's what you can try:

1. Press and hold"Power button"Force restart the phone for more than 12 seconds to see if it resumes use, and check whether the power button and volume button are stuck in the case.

2. Enter the system upgrade interface to check the update to the latest version.

3. Go to Settings - System Management - Backup & Reset - Restore all settings, and follow the on-screen prompts.

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

It is recommended to close the background running software of the mobile phone first, and then enter the i Butler - Space Management to clean it up, and then restart the mobile phone to use it.

Please also go to the mobile phone settings - system upgrade to detect the update to try, the system upgrade is mainly for the previous version to optimize and function fine-tuning, improve system compatibility, optimize system performance.

If this phenomenon still occurs, it is recommended to enter the phone settings - more settings - factory reset - restore all settings to try, restore all settings will not clear the important data in the phone, but will exit WeChat, in order to avoid misoperation, it is recommended to back up the important data in the phone before operating this step.

1. Find the settings icon in the desktop of the phone to enter the settings interface.

<>4. Tap All in the app.

Here's <> steps to restore all settings:

1. Find the settings icon in the desktop of the phone to enter the settings interface.

<>4. Click Reset All Settings in Factory Reset to try.

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.

FunTouch OS and later models: Press and hold the "Power button" and "Volume Down button" at the same time for more than 10 seconds;

Press and hold the top round button for more than 10 seconds to force restart the phone (applicable to NEX 3 NEX 3S);

FunTouch OS previous models: Press and hold the "Power Button" for more than 12 seconds.

2. Upgrade the system version (skip this step if the screen is completely black and cannot be restored).

Please upgrade your phone to the latest version to view.

3. Reset all settings (skip this step if the screen is completely black and the display cannot be restored).

Backup: Go to Cloud Service - Device Cloud Backup - Backup Data Type - System Data - Return - Back to Backup 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.

Note: This operation will not delete files or software, it will cancel the password and restore all settings, including: set wallpaper, unlock style, wifi, default open program, etc.

4. Service center testing.

If the above methods do not solve the problem, please back up your mobile phone data in advance, and bring your mobile phone and purchase voucher to the vivo customer service center.

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Note: In order to save valuable time, it is recommended that you call the service center in advance** to confirm the service center business hours, whether the spare parts inventory is sufficient, etc.

[Other black screen scenes].

1. There is too much software running in the background, and the startup software has a black screen.

Multiple applications running in the background will occupy too much memory or other resources, and the phone may be overloaded and may cause abnormalities, so it is recommended"One-click acceleration"Clean up background apps.

2. The screen will go black when the set auto-lock time is reached.

Go to Settings - Display & Brightness - Auto Lock Screen to adjust the lock screen time to a longer time.

3. Double-click the screen to go black.

This is to turn on the double-click screen-off function, enter Settings - Quick and Assist - Intelligent Somatosensory - Smart Screen Off - Double-click to turn off the screen or Enter Settings - Intelligent Somatosensory - Smart Screen Off - Double-click to turn off the screen and turn off the function.

4. Use third-party software to have a black screen.

5. The screen is black during the call.

In order to avoid accidentally touching the screen, during a call, when the infrared sensor is blocked, the phone will automatically turn off the screen, and the screen will turn on when it is far away.