How to Fix LG Q7 Black Screen

LG Q7

What are the causes of a black screen? Hardware reasons and software reasons. The former include a malfunctioning screen, a defective matrix, problems with the power button, etc. The latter include system shell errors, application errors, virus attacks and others. So let's go through the possibilities to fix black screen on the LG Q7.

Basic algorithm

  1. Press the power button. If the screen works, everything is OK.
  2. Restart the phone. Press the power button until it vibrates.
    • If the logo appears during a restart, there is a problem with the phone software or an application.
    • If the logo does not appear, it is a hardware problem. You need to take your phone to a service centre.
  3. After a restart, the screen may or may not work.
    • If the screen works, the problem is most likely due to a bug in an app or shell. Fixes for such errors are often noted in the upgrade logs. You can check these periodically to see what the black screen is all about.
    • If the screen doesn't work but the phone itself does - there's sound, vibrations - then it's probably infected with some kind of virus. For more information on how to rid your device of viruses, see Software Causes.

Resolving problems with the hardware

First charge the mobile phone. If, after a few seconds, a picture appears showing the battery gradually filling up, or a percentage figure with a lightning sign, all is well with the hardware.

Matrix not working

If the screen does not light up and you are sure that the charger is working, the problem may be with the matrix. The malfunction usually occurs when the screen of the mobile phone is damaged. Without disconnecting the phone from the charger, try shaking it in different directions. If the screen lights up or the image appears and then disappears, there is a problem with the sensor.

Also try examining the phone from different sides. If there are chips, cracks or gaps between the screen and the casing, the problem may also be related to the sensor.

There are ways to repair such damage at home. But it is much easier to take the mobile phone to a service centre.

Inoperable power key

Usually, the problem occurs in two situations: when the button starts to stick or when the phone has fallen into water. In the first case, it is sufficient to clean the recess for the button. However, it is not recommended to do this yourself - there is a high probability that the power button will be damaged or break off.

In the second case, the contacts are probably oxidised. It is impossible to repair them at home without special equipment. If the power button does not work, you must take the phone to a service centre.

Light intensity

Many users turn down the brightness of their mobile phone in dark places so that it does not shine in their eyes. This makes sense. However, as the day goes on, they forget to turn it back on. Because of the design of the screen, especially the viewing angle, there can be a black screen effect. Roughly speaking, when it is bright outside and the brightness of the phone is minimal, the image becomes indistinguishable.

This is easy to fix. Just go into a dark room, or shield the phone\'s screen. And turn up the brightness.

Software damage solution

There are dozens of software causes. Let\'s take a look at the most common ones.

Black screen after starting an app

Wait a few minutes. Some apps can take a long time to start. If the screen is still black, try closing the app. Press the Home button on your phone.

Are you using the gesture control feature? Then swipe down from the centre of the screen. If the app has been closed and the screen is working again, do not start it again.

Viruses

The general algorithm for dealing with viruses:

  1. Press and hold the power button on the mobile phone.
  2. When the menu appears, press and hold "Power Off" for a few seconds.
  3. After the notification to switch to safe mode, press "OK".
  4. Turn on the phone in safe mode.
  5. Then there will be a screen. If the screen works, reset the phone to factory settings. This is guaranteed to remove all viruses.

If the screen does not work, connect the phone to the computer with a USB cable. Hopefully, USB debugging is enabled by default. If the computer explorer has seen the connected device, run any antivirus app, scan the phone for viruses and then delete it. If Explorer does not show your phone, take it to the service centre.

Share this page with your friends:

See also:



How to flash LG Q7

How to root LG Q7

Hard reset for LG Q7

How to reboot LG Q7

How to unlock LG Q7

What to do if LG Q7 won't turn on

What to do if LG Q7 doesn't charge

What to do if LG Q7 doesn't connect to PC via USB

How to take a screenshot on LG Q7

How to reset FRP on LG Q7

How to call recording on LG Q7

How to update LG Q7

How to connect LG Q7 to TV

How to clear the cache on LG Q7

How to backup LG Q7

How to disable ads on LG Q7

How to clear storage on LG Q7

How to increase font on LG Q7

How to share internet on LG Q7

How to transfer data to LG Q7

How to unlock bootloader on LG Q7

How to recover photos on LG Q7

How to record the screen on LG Q7

How to find blacklist in LG Q7

How to set up fingerprint on LG Q7

How to block number on LG Q7

How to enable auto-rotate on LG Q7

How to set up or turn off an alarm on LG Q7

How to change ringtone on LG Q7

How to enable battery percentage on LG Q7

How to turn off notifications on LG Q7

How to turn off Google assistant on LG Q7

How to turn off the lock screen on LG Q7

How to delete app on LG Q7

How to recover contacts on LG Q7

Where is the recycle bin on LG Q7

How to install WhatsApp on LG Q7

How to set contact photo in LG Q7

How to scan QR code on LG Q7

How to connect LG Q7 to computer

How to install SD card in LG Q7

How to update Play Store in LG Q7

How to install Google Camera in LG Q7

How to enable USB debugging on LG Q7

How to turn off LG Q7

How to charge LG Q7

How to use the camera on LG Q7

How to find lost LG Q7

How to set password on LG Q7

How to turn on 5g on LG Q7

How to turn on VPN on LG Q7

How to install apps on LG Q7

How to insert a SIM card in LG Q7

How to enable and configure NFC on LG Q7

How to set time on LG Q7

How to connect headphones to LG Q7

How to clear browser history on LG Q7

How to disassemble LG Q7

How to hide an app on LG Q7

How to download YouTube videos on LG Q7

How to unblock a contact on LG Q7

How to turn on the flashlight on LG Q7

How to split the screen on LG Q7

How to turn off the camera sound on LG Q7

How to trim video on LG Q7

How to bypass the Google account on LG Q7

How to change the language on LG Q7

How to open engineering mode in LG Q7

How to open recovery mode in LG Q7

How to find and turn on a voice recorder on LG Q7

How to make video calls on LG Q7

LG Q7 sim card not detected

How to transfer contacts to LG Q7

How to enable/disable «Do not disturb» mode on LG Q7

How to enable/disable answerphone on LG Q7

How to set up face recognition on LG Q7

How to set up voicemail on LG Q7

How to listen to voicemail on LG Q7

How to check the IMEI number in LG Q7

How to turn on fast charging on LG Q7

How to replace the battery on LG Q7

How to update the application on LG Q7

Why the LG Q7 discharges quickly

How to set a password for apps in the LG Q7

How to format LG Q7

How to install TWRP on LG Q7

How to set up call forwarding on LG Q7

How to empty the recycle bin on LG Q7

Where to find the clipboard on LG Q7

How to Fix Black Screen on Another Phones