If suddenly your tablet crashes and does not show video, although there is sound, then there may be problems with the monitor itself, or with the presence or absence of some programs and applications. Let's sort it out in order.
Why is there no image on the tablet, but there is sound
The content of the article
- Why is there no image on the tablet, but there is sound
- What can you do yourself if there is no image on the tablet
If the tablet makes all the usual system sounds when it is turned on, and the screen does not light up, there may be several reasons for this:
- matrix malfunction;
- cracked screen;
- problems with the touch screen loop;
- problems with the video adapter.
In the first two cases, the tablet will have to be carried to a service center. You can try to insert the cable into the connector yourself, only you need to do this very carefully.
To check the health of the video adapter, you need to connect the tablet to any external screen through the video input. If there is no image on it, it means that there is a problem with the video adapter. If this screen shows a picture, the reason is different - in the matrix or hardware failure.
What can you do yourself if there is no image on the tablet
If the tablet works, but for some reason has stopped showing video from the gallery or when watching online, then the reason for this may be:
- either display modifications;
- either overlay.
The first problem occurs when the user changes the color temperature settings (F.lux, Twilight) or turns on the built-in functions in display settings (for example, Live Display in CyanogenMod), as well as "dabbled" with color correction, color inversion or high-contrast flowers. In this case, you should either remove the application or disable these functions. Perhaps after this video will appear.
Some overlays may also result in image loss. These include application blockers (such as CM Locker) or design applications - it happens, that they add controls on top of the main interface and even the parent function control. In this case, you need to try to delete the application data.
Attention! To make sure that one of the applications became the cause of the black screen, you can boot the device in safe mode. If the video in this mode shows without problems, then you need to find the problem application and delete it.
Not all failures can be dealt with at home, but some problems can still be corrected independently:
- Battery off Removing the battery, you will reboot the system, which in some cases will be enough.
- Rollback to factory settings. If the first did not help, you can roll back the tablet settings to the factory settings. Most models have a reset button. How to use it is written in the instruction manual. If there is no reset button, you need to press the power and volume up buttons simultaneously. In the engineering menu on the screen, select "Formatting the system." Resetting is best done by first removing the memory card and SIM card.
- Flashing. If the second method did not help, then it is worthwhile to upgrade the firmware - the most difficult of the methods. It is most effective, but only by an experienced user. The rest is better for this purpose to turn to specialists. Please note that the flashing curve can lead to irreversible consequences.
Important! When you roll back to the factory settings or flashing all the games, photos, music stored on the device will be deleted.
As you can see, there may be several reasons for the black screen on the tablet. If your device is under warranty, then you yourself should not try to fix it yourself - all problems associated with a malfunction, it is better to solve in the service center.
