Vertical lines on a smartphone screen. Streaks on the (phone) tablet screen after a fall (what to do?) cable came off repair

Stripes and ripples appear on the screen of your tablet or phone - what to do? There are several reasons why stripes may appear on your device's display. Using the example of N8000 repair, stripes in the image (artifacts)
channel channel Ivan Voronin - https://goo.gl/0tob3D In some cases, the problem can be fixed on our own, in the rest it will only help service center. The most important thing is to find the root cause, the source of the ripples and stripes.

Out of order, or the cable has come loose

If stripes or ripples appear on the tablet after an impact or fall, there is a possibility that the cable connecting system board device and display jumped out of the connector. At the same time, the tablet itself is visually intact, there are no permanent black spots on the display or cracks. In this case, the device user can try to fix the problem themselves. To do this, you will need to carefully disassemble the tablet and insert the cable back into the socket on the system board.

In the event that you know that the tablet 100% did not fall, but the stripes still appeared on their own, you will probably have to take the tablet to a service center to replace the cable. Unfortunately, it tends to “wear out” over time.

Mechanical damage to the matrix

If ripples, stripes or spots on the display appear due to shocks, falls, and other physical influences, this may indicate damage to the matrix. This type of failure can be distinguished from the previous one by the presence of a crack under the touchscreen, or by the presence of dark spots of various sizes, which retain their constant position when the display is turned on. Self-repair You can only do it if you have experience in replacing the display, and also have a new display in stock. Otherwise, you need to take the device to a workshop. Replacement costs vary depending on the tablet model and display size.
Video driver failure

Sometimes the reason for the inappropriate behavior of the image on the display can be caused by software glitch. How to distinguish problems in the system from problems with the loop? If the tablet has not been subjected to mechanical stress, but the image changes color on its own, or duplication or overlaying of images occurs, try resetting the tablet to factory settings. If this does not work, you can try to reflash the tablet. And only if these manipulations do not solve the problem, can we assume that the culprit of the malfunction is the cable.

Cooling problem

With some budget tablets Chinese-made products may have problems associated with overheating and lack of cooling. The tablet may work quite normally, but after heavy load (for example, after playing games), it may freeze and streaks will appear on the display. After some time, the stripes disappear on their own and the tablet works again. Such symptoms clearly indicate poor-quality cooling, or even its absence. At home, you can organize a cooling system only if you have knowledge and skills in this area. In other words, may the service center help us.

Tablet screen flickering
When a tablet screen flickers, it is quite difficult to determine the cause. Let's look at how this happens. The first option is software, that is, you just need to update the firmware. It’s unlikely, although users often fixed the problem by adjusting the power application, sometimes the reason was in a specific energy saving profile.

Tablet screen flickering

The second option is hardware. Here it all again comes down to poor contact between the display cable and its connector. More precisely, this is something that can be checked. If the loop does not help, then you only need a specialist to diagnose and, as a rule, you will not achieve anything.

The fact is that the tablet screen also flickers in cases of low-quality capacitors. They must be made of silicon, but Chinese manufacturers often try to save money on this. Sometimes a group of capacitors is not completely soldered. You can solder them personally, although this happens extremely rarely.

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