Broken tablet sensor does not work. The screen is cracked on the tablet the sensor does not work what to do. Tablet screen cracked. What to do. Causes of malfunction or incorrect operation of the sensor

First, let's define why the sensor on the tablet does not work?

Tablet sensor not working?

We constantly print, enlarge, draw with our fingers “patterns” of rare “beauty” - all these actions are common to every person, and that's why we buy tablets. But sooner or later we are faced with a problem when the sensor on the tablet stops working, regardless of whether Lenovo at you or Samsung Galaxy Tab, iPad or Prestigio!

The touch display is the primary way of interaction between you and your installed applications and therefore it is a vital component of your tablet. Any damage caused, even the slightest scratch, will degrade component reliability, and through certain time, you will one way or another run into a problem when the sensor on your tablet is no longer working!

What can be done if the sensor does not work on the tablet?

The following advice, in part, will help you solve the responsiveness problems of your tablet's sensor. These tips can be applied to IOS, Android and Windows 8.

1. Need more random access memory

Freeing up RAM on iPad

Probably a process restore the tablet sensor the best place to start is by increasing the amount of available RAM. This may take a while (and may require a reboot in some cases), but it should also give us an idea of how bad our business is. Users Android have many options for freeing up tablet memory, such as clearing the application cache or fully optimizing the device using third party applications, such as Memory booster.

Memory problems on iPad can easily slow down the touch screen response. The best way handle it (in IOS 6 and below) double click Home button to display open in this moment applications, and then press and hold to display the cross in the upper right corner.

If you see improvements in the responsiveness of the tablet senosor while freeing up RAM, then that must be the problem.

If the sensor on the tablet is still not working, or you are sure that the problem is different, let's take a look at the following recommendation.

2. Try restarting your tablet

Among other things, troubleshooting can be facilitated by the usual. When the device restarts, most applications will be closed. For Android users, this shouldn't be a big problem - all you have to do is hold down the power button and select the appropriate “restart” action.

Owners Apple iPad you will need to close all open applications before pressing the Sleep / Wake button.
Windows 8 tablet owners can restart their devices by opening the Charms menu and then clicking Settings> Power> Restart. If the device does not respond, hold Windows button and the power button together for a few seconds until the tablet restarts.

So, if after rebooting your tablet, the sensor does not work, let's move on!

3. Use the native Troubleshooter apps

Often when tablet sensor is not working, this does not mean at all that it does not work entirely! The problem may actually only be in some parts of the display.
Knowing which areas of the touchscreen are not responding can be very helpful in diagnosing your device; the information will certainly come in handy for any tablet repairman.
Applications such as a calculator and maps are useful tools for checking non-working areas of your display.

So, we tried to describe the 3 most effective method elimination of some breakdowns of the tablet sensor that you can use yourself.

However, as you may already be aware, there are problems that are so complex that you may need to have your device serviced. In our service center in Simferopol, specialists are ready to help you even in the most difficult cases.

In some cases, there is nothing serious behind it - it is common for technology to fail for reasons that users do not understand. Therefore, you should not immediately carry the gadget for repair: you can try to "reanimate" it at home. So, what problems can the owner of the device face and what to do if the sensor does not work on the tablet?

If the sensor does not work on the tablet: ways to solve problems

Cleaning the display. Simple, banal, but often very efficient way. There are slight contaminants on the screen that impede the reaction of the sensor, or the protective film is poorly applied. All of this is easy to fix. It is best to use a special lint-free cloth (such as microfiber) and liquid to clean your monitors.
Return to factory settings. Tablets of different brands have their own Hard-reset features. In most cases, you need to simultaneously press two keys - "home" and "volume up", then - "power" (screen lock button). A message will appear on the screen stating that the information is being cleared. After that, the device will automatically reboot. But you need to remember that, unlike a standard reboot of the tablet, this method entails deleting system information. But sometimes you don't have to choose. If you are performing this procedure as a preventive measure, it will be useful to take care of creating a backup copy of the existing files. This method can help solve the problem of the sensor not working if the failure is caused by a virus. Also, it is not uncommon for the tablet's memory to be overloaded, as a result of which the device starts to freeze, and the user mistakenly associates the problem with sensor malfunctions.
"Emergency help". Problems with the touchscreen are often the fault of the users. So, for example, if you spill water on the device, you need to disassemble and dry the gadget as soon as possible. If the cause of the breakdown is another liquid (juice, sparkling water or, even worse, gasoline - you will hardly be able to do without the help of a specialist. Note: you cannot put the tablet (or rather, its parts) on the battery, you cannot dry it with a hairdryer. ways to solve this problem will be to "immerse" the parts in rice groats, which should collect excess moisture. Here you should not rush - it is recommended to try to turn on the tablet again after 3-4 days, not earlier.
Replacing the sensor. Unfortunately, the touchscreen can malfunction without the ability to return it to a working state - not a single tablet is insured against this, regardless of its price category. There are both factory defects and "secondary" defects caused by the negligent use of the device.

Buying a new sensor is not a cheap pleasure. In addition to the fact that the price of a new sensor itself can reach half the price of a tablet, you will need to "fork out" for the services of a master. But in some cases, you can try to repair the gadget yourself.

There are many visual video tutorials on this topic on the net. In reality, replacing the sensor is not that difficult. First you need to disassemble the tablet, after removing all the screws and other small parts. It is important to remember the sequence of disassembling the device.

Next, you need to disconnect the sensor. Most often it is attached with glue. To avoid damage to the device, exposure to high temperatures (about 60 ° C) is required. Due to the lack of special devices, you can start with a hairdryer.

After disassembling all parts, perform the internal "cleaning" of the device (if necessary). Then attach the new sensor "in place" using special double-sided tape or glue.

If the home repair is successful, calibrate the touchscreen using the appropriate settings.

Favorite things are an important attribute of our comfort. For a modern person, such a thing is a tablet, and it is very unpleasant when a breakdown occurs. What to do if it doesn't work touch screen on a tablet? Let's figure it out.

The touch screen is the main control for your tablet

The thing is functional, but very sensitive. Its work is based on the principle of sensitivity: special electrodes are located at the corners of the screen, which supply a not too large permanent voltage to the sensor layer. This layer, in turn, is a conductor. When touched with a finger, a "current leakage" occurs, this is recorded by special sensors, then transmitted to the controller, which determines the points of contact. The work of the sensor is built in this way: the closer you bring your fingers to the screen, the greater the current strength and the overall sensitivity of the display. If the surface of the screen is covered with a certain substance, which, by definition, should not be there (for example, dirt or an air gap between the display and an inaccurately glued film), this disrupts its operation.

Breakdown reasons

The main troubleshooting step is to find out why the touchscreen on your tablet is not working. There can be many of them, let's highlight the main ones:

The first and most commonplace reason is mechanical: You have splashed or dropped the tablet. Many users cannot imagine their morning without a cup of coffee and reading news on the Internet. Liquid can spill from one careless movement, and, as a result, the touch screen on the tablet, or even the entire system, does not work. If you drop your "pet", the sensor may break. In such a situation, it must be replaced;

The touch screen does not work because it is covered with a layer of plaque, scratches, protective film glued poorly... This picture happens with tablets that have been in use for a long time, and the warranty period has already expired.

The quality of the film sticker may affect the performance of the touch screen.

In the rhythm of modern life, even if it is neat and it is impossible to avoid small (and possibly large) scratches, dust, plaque formation and other mechanical influences. The longer we use a thing, the more it wears out. Often, to protect the display, we glue a film on it, but if this is done incorrectly, air bubbles form between the touch screen and the film, and the display's sensitivity is lost;

Simple solutions to complex problems

First aid should be given to your device in any situation. Based on the reasons given above, we can significantly improve, and even eliminate the unpleasant situation.

Many tablets have screen problems. To begin with, the touchscreen is the main means of controlling the gadget. Due to its structure and sensitivity, various problems, so today we will consider the question of why the sensor on the tablet does not work.

Mechanical aspect

The tablet has been dropped or liquid has been spilled onto it. In this case, not only the sensor can fly, but the entire system as well. Also, the sensor may break, then it needs to be replaced. The screen can be scratched, covered with plaque, etc., then you need to change the film or protective glass... The fault can be rectified simply by clearing the display. To clean the screen, you need a lint-free microfiber cloth. You will also need a cleaning fluid (except for water and based on ethyl compounds). As a last resort, it is worth calibrating the screen, provided that there is a reaction on the tablet, and the data is not displayed correctly. Alternatively, you can simply reboot the device.

Software glitch

In the event that the reasons are related to software glitch, you need to try to do “ hard reset". Then you need to reboot the device. It is advisable to run cleaning programs system registry(example: WinFixer, Cleaner4), fixes for "RAM" errors. Don't forget to clear the tablet cache, which is also loading memory. And at the same time, check your tablet for viruses using antivirus software since often we can download applications and games with viruses, which can affect the operation of the sensor. Perhaps you need to install a more functional antivirus.

Lack of RAM

Lack of RAM, its load also negatively affects the work. Therefore, it is worth keeping an eye on its volume. For example, once again it is worth freeing it by deleting extra files and applications, or transfer them to another medium.

Loaded processor

The processor on your tablet shouldn't be heavily loaded either. Especially if you have a not very powerful chipset preinstalled, and you downloaded “heavy” games and programs to your device. In this case, it may start to "slow down" operating system, there will be application failures, incorrect system operation, and then the touch screen will start to slow down. To prevent this from happening, you need to track the volume of downloaded games.

In most cases, you can fix the problem yourself, but you can always take your tablet to a service center.

Today, almost every family has such a multimedia gadget as a tablet. It is bought for children and adults for games, leisure and even work. But this wonderful device has one unpleasant feature - it is quite fragile. And especially vulnerable it is enough big screen... And since the tablet is mobile device, then he experiences vibrations, shaking, shocks in public transport, on the street, shopping centers and other places of dense gathering of people. Leaving your tablet on an armchair or couch runs the risk of someone sitting on it. Delicate microcircuits inside often suffer from falling to the floor or when liquid gets on the tablet, if you or your household accidentally spills juice, tea, etc. on it. In general, there are many breakdown options, but the most common problem is the screen glass. The glass on the tablet cracked - what to do and how to replace it at home? Let's figure it out.

Causes of screen problems

How do I change or restore glass on my phone? In fact, the situation is quite common - the device is thin and light, and therefore fragile. Damaging your tablet screen is as easy as shelling pears different ways... Let's list the most common situations in which this happens:

The fall. This is the most common option. You didn’t have time to get used to the size and weight of the device, and you let go. Your family and friends can do the same, we also add pets here.
Pressure. Also a fairly common cause of screen problems. There are many options - they can sit on the tablet, the screen can be broken by pushing it into a tightly packed bag or backpack, when packing somewhere, it can get hurt in a bus full of people, etc.
Incorrect operation. A crack may appear from a sharp temperature drop, for example, you brought a tablet from a frosty street into a very warm room. In this case, not only the screen may suffer, the electronic filling is also sensitive to temperature changes. We also include screens broken in a collision with heavy objects - it is unlikely that a dumbbell falling onto the screen can be called its correct operation.

Important! This is not the entire list of reasons why your device's display may crack or break. However, these are the most common causes of tablet glass breakage, according to service centers.

Does it make sense to carry out repairs yourself?

How to fix a crack on the screen mobile phone? If you are not tech-savvy enough and your tablet screen is cracked, what should you do? Take it to the service center! Especially if the device is still under warranty. Trying to repair it on their own, you will definitely lose your eligibility for warranty repairs.

Of course, a broken display is rarely recognized as a warranty case, but you, according to at least, there will be insurance in case of other breakdowns. The procedure for replacing a new display differs even within the lineup one brand, not to mention different. In addition, this process is not as simple as it might seem at first glance.

However, if you still dare to repair the broken tablet screen yourself, the following main pitfalls may await you:

Lack of experience in repairing a device of this class. The replacement process is quite complicated.
Spare parts availability. Especially if your device is not the most popular on the market and you are not in a large city.

Important! If it turns out that the repair is still impractical, then take temporary conservation measures working condition your gadget in one of the following ways. In the meantime, pick up another model for yourself. Our reviews will help you here:

Device

So, can the tablet be repaired if the screen is cracked? First, let's figure out what a tablet screen (display) is and what it consists of.

A display is a signaling component to display visual information, so it cannot be self-contained. And at the same time, it can work by itself, that is, it can be connected to a variety of other devices. Although, in some multimedia devices, the screen is made as a monoblock. In most other wearable devices, it is completely collapsible.

These are mainly the following components:

Protective glass or plastic.
Touch panel (touch screen).
Matrix, as well as a backlight panel.

Diagnostics

First you need to understand which of the above components is out of order:

The easiest option is a broken glass, it is also the cheapest.
Matrix problems are the most expensive option. You can order the required component on many resources, and even with the matrix and sensors there are no problems.

Important! Not only identical matrices can be ordered on Chinese tablets. As a rule, they are all universal, and differ only in the way of installation. It is necessary to re-glue the rubber seals, and also take into account the location of the ribbon connectors.

When only the glass is broken, the sensor usually works. Often people continue to use such a tablet until it is completely out of service. In a situation where the glass is intact, and the sensor does not work, everything is somewhat worse. Let's say you dropped your gadget or something fell on it. It is not necessary to assume that the sensor is broken. Disassemble the tablet and check if the cable is pulled out.

Important! The matrix needs to be changed only when it is partially or completely out of order. But manufacturers often sell screens as complete sets. To save money, we recommend running through service centers or looking for a separate desired component on popular Internet sites.

Debugg

We figured out the diagnostics, now how to fix the tablet screen.

Screen protector and tape

If you can't get your damaged display glass repaired right away, there are some ways you can use your tablet. In other words, if only the glass is broken, the screen continues to show the image and the sensor is working properly, the following method will come in handy:

Wipe the screen from dust and dirt as much as possible.
Place a generous piece of packing tape over the screen and trim off the excess around the tablet. This will allow you to continue using the tablet with a broken screen, slow down the development of cracks and the loss of pieces of glass.

Self-replacement screen

It is difficult but doable. There are many online tutorials and materials online for replacing the display and its components yourself. To do this, you must strictly follow their instructions. Find on the Internet how your device understands. This can be done intuitively, there is nothing difficult about it.

Important! Some devices have their own nuances and tricks, be careful.

Disassembly and repair will require the following:

To open the tablet - a mediator, a plastic card or any thin, flexible plastic object.
Screwdriver.
Tweezers.
New screen.
Technical hairdryer.
Stationery knife.
A piece of soft cloth to wipe the device.

Replacing the tablet display begins with removing the cover and disconnecting the ribbon cable, it contains all the information about the part being replaced. Next, you should proceed in this order:

If there are bolts at the ends of the tablet, unscrew them.
With a plastic card we poke out the case and go along the entire perimeter of the device, after which it will be possible to remove the cover.
We rewrite the marking and all the data from the removed part, which will allow you to purchase a new part for replacement.

To fix the screen, you need to remove it and install new components. This is done as follows:

To remove cracked glass, heat the device case with a hair dryer.
Pry off the edge of the glass with a knife, simultaneously warming up with a hairdryer, gradually move around the entire perimeter of the screen, peeling off the display.
Carefully remove the broken screen, check that small fragments do not remain on the surface of the matrix. To do this, use a cloth or napkin.
After removing the broken part, take a new screen, remove all protective films from it.
Try on the frame and stick a new display onto it.

Important! Carefully check the evenness of the fit, because it is unlikely that it will be possible to reinstall it.

After gluing, gently iron the glass with a cloth. After that, you just have to assemble the tablet.

Video

Now you know how to fix your tablet if the screen is broken. This will save you personal money and time on services. service center which are often immodestly expensive.