The top of the screen does not work on the phone. Simple tips for those whose phone sensor does not work

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Unlike their ancestors, modern smartphones controlled using a touchscreen and several auxiliary buttons. Therefore, it is difficult to imagine a situation worse than the one when the screen on the phone does not work.

This manifests itself in its complete inoperability, loss of some important functions, or random triggering of the sensor. It is especially unpleasant when a black phone screen catches the user at the most inopportune time.

There are several reasons why your phone has a black screen:

the device fell;
the microcircuit has failed;
the connecting cable flew out;
moisture has entered the device.

It is almost impossible to immediately understand why the phone screen does not work. The only exceptions are obvious damage that leads to the appearance of cracks on the display or deformation of the case. But first things first.

The phone fell

To damage the display, just one fall of the gadget from a small height is enough. The greatest risk is a collision with asphalt or rocky soil, when the impact falls on a certain part of the protective glass.

If after this, the user’s display no longer works, the glass on the device could have cracked, resulting in damage to the touchscreen along with the display, or the cable could have popped out. It would be wise to take the gadget to a specialist for diagnostics, making sure to note that you dropped it.

Screen control chip failure

Another extremely common occurrence is the failure of the graphics chip. The display stops receiving information from the device and no longer shows images. It is extremely difficult to identify this problem at home. IN in this case, all components must be completely replaced. This operation will not be possible if the device is smashed to pieces.

Worn or disconnected cable

Compared to most hardware components, the cable can be replaced without additional re-soldering of the device board. Usually, solving such a problem takes several hours, even when the cable is completely broken.

It is possible that the display no longer lights up, not because of a broken cable, but because it was disconnected from the main board as a result of a strong impact. Repair work will take only a few minutes, the cost varies depending on the complexity internal device gadget.

Moisture and liquid entering the phone body

One of the worst scenarios for why the screen won't light up is if the hardware comes into contact with moisture. Whether it is steam or a few drops of liquid, they can cause destruction of the board contacts, causing short circuits or express yourself in a specific way when the sensor does not respond to your touch or divide the image into several zones.

The solution to this problem will depend on the amount of oxide formed. If you delay repairs, thorough cleaning may not be enough and you will have to resort to replacing damaged modules.

Oxide Elimination

It is possible to fight oxide on your own. Immediately after moisture gets into the gadget, it is recommended to completely disassemble the device and check it for the presence of electromechanical corrosion. The affected area is treated with 96% medical alcohol to better effect use a toothbrush soaked in alcohol and dry the board.

It’s worth warning right away that such personal intervention can only worsen the condition of the smartphone. It is better to give the device to the specialists, where they will treat it with a water-repellent solution and provide high-quality washing using an ultrasonic bath. Dry it in a heating cabinet at a certain temperature. It is often impossible to say for sure whether the device can be saved due to extensive damage to the hardware of the board.

Advantages of specialized service centers

Has an obvious advantage full diagnostics device with subsequent replacement of failed parts. Unlike carrying out these manipulations at home, the risk that the master will touch important node by negligence is reduced to a minimum.

Additionally, you will receive a warranty for the entire device, and not for separate part, which had to be replaced. As replacement parts, use only original spare parts without using low quality Chinese analogues.

Rather than try to fix the problem yourself, it is better to immediately contact specialists who have experience in restoring mobile devices and the necessary tools for this. This is especially true for those who need an urgent screen replacement.

Conclusion

The display of a mobile device is very fragile and can be damaged not only due to a strong impact, but also due to moisture getting into it. It becomes almost impossible to save your device without the use of special tools, and in the vast majority of cases, intervention inexperienced user, leads to complete damage to the hardware board or individual modules.

Video

Good afternoon, dear reader!

Today I will tell you a story from my life. This is not just a story, this is practical advice. It’s not for nothing that this article is located in the “Everyday Affairs” section.

I have several phones. Yesterday on one of them the touchskin (or touch screen) is a touch screen that completely replaces the physical keyboard.

As usual, he “died” partially, but this was quite enough to completely paralyze all work.

light spot

The sensitivity on the narrow strip on the right has disappeared. The phone was turned off at night, and in the morning I tried to turn it on. This procedure is accompanied by entering a password. And I need this narrow stripe on the right, since I will use the number located there.

As a result, I couldn’t even turn on the phone. As usual, calls began to service centers and answers: “Leave your phone number - we will call you back once we check whether we have such a touchscreen or not.” As a rule, everyone promised to call “today or tomorrow.” What should I do right now?

In general, there was only one bright spot in this whole story - the Internet. Why light? Because you will always find answers to 99% of your questions on the Internet! I found the answer too.

Which? I'll tell you now.

Where can I get it?

If the touchscreen on your phone is “covered with a copper basin,” you will need a piezoelectric element to “resurrect” it. Where can I get it? Of course, in a piezo lighter. But I don’t have a piezo lighter at home: with a handle, on a wire or a battery - there’s no such thing.

But there is a piezoelectric element. It is installed on the hob of my gas stove. Turning the burner knob, I open the gas. At the same time, I press the handle down and turn on the piezoelectric element. This is how I light the burner.

In general, I need a piezoelectric element, but I don’t need gas. I turned off the gas valve. Turned off my phone. I brought it with the screen to the piezoelectric element: the place where my touchscreen “died”. I turned on the piezoelectric element and moved the screen for a few seconds so that the spark covered the “dead” area of the touchscreen.

After that, I turned on the phone, and - lo and behold! – the touchskin is working! He really recovered! He became fully operational!

The effect lasts...

Various sources on the Internet report that the effect of such resuscitation lasts from several days to one month. Today is my second day since the touchscreen “came to its senses” - everything works perfectly.

Of course, it is necessary to replace the touchscreen, but resuscitation from a piezoelectric element as an immediate method is simply great!

If my solution helps you, I will be only glad! Have you ever experienced a sudden “death” of your touchscreen at the most inopportune time? How did you solve this problem?

Modern gadgets have become an integral part of our lives. The telephone is the most common gadget. Almost every person has it. Unfortunately, even the most reliable phones can break due to shock, water, or software glitches. The most common problem that many mobile device users face is that the sensor does not respond to touch. If the device is still under warranty, then you should immediately contact service center. Otherwise, there is no need to rush, because there are cases when the problem can be easily and quickly fixed. The sensor does not respond to touch, what should I do in this case? Let's look at all aspects of this problem.

Phone screen repair

Before solving the problem, you need to make sure what is causing your display to break down. It could be mechanical damage, liquid getting inside the device or software glitch. If you are sure that you did not drop the phone or spill liquid on it, then we can assume that this is a software glitch.

Cleaning your mobile phone screen

First, you can simply clean the display of your device. You will not harm the phone in any way, but improve the connection and perhaps the problem will be solved. This method may help if the sensor does not respond to touch. What to do?

Take a suitable cloth and liquid to clean the screen. It is better to use lint-free or any other natural fabric. To clean the display, we will need a glass or monitor cleaner.

If this method does not help, then you should move on to next steps. Of course, they may not help either. Only a professional can determine the true cause of the breakdown, but even he cannot solve every problem.

Software glitch that caused the display to break

If the display of your mobile device reacts to your touch in some places, then you can try to make it Hard Reset system, This full reset settings. But it’s worth remembering that this can only help if the sensor glitches from time to time. After resetting the settings, install applications that can clean system registry. This will eliminate errors caused by RAM. Recommended applications are WinFixer and Cleaner4. Unfortunately, the second utility is paid, but has good functionality. The first program is suitable for you if you are not sure of the reason why the display does not respond well to touch, and you are not going to spend money.

All actions should be performed without a memory card. It may contain viruses that cause system malfunctions. After resetting the settings and cleaning the registry, you need to put the SD card in place and scan the device with an antivirus. Select full check devices and wait. But even after these actions, the sensor does not respond to touch. What to do? In this case, it is necessary to proceed to replacing the sensor, since the reason is not caused by a software glitch.

Mobile phone display replacement

The sensor does not respond to touch - what should I do? If the previous methods did not help, then you need to replace the damaged display. Most often, this needs to be done when the device has been dropped, cracks have appeared, or moisture has entered. In the latter case, you may not even notice how liquid got into the phone, as this can happen due to temperature changes. So, condensate that accumulates in mobile device, will interfere normal operation phone. At first, black spots may appear when working with the gadget, and later the sensor itself will stop responding to touches. In this case, you will need to change the screen.

Repairing a phone screen is not a very complicated process, the main thing is care and accuracy. Anyone can do this. The sensor does not respond to touch - what should I do? First you need to disassemble your device, but you should remember the sequence of actions so that there are no problems with assembly in the future. All plugs and latches are removed using a thin object. You will need to carefully remove all elements from the latches with this object.

After disassembling your smartphone, you need to remove the display. It is necessary to check how the display is attached to the matrix. This can be done in two ways: monolithic or separate. This is very important, since when ordering a new screen, this aspect will need to be specified.

The sensor can also be connected to printed circuit board different ways. There is a contact method, in which the sensor is simply disconnected, and a wired one. In the latter case, you should be very careful.

If you need to detach the matrix from the sensor, you must follow these recommendations:

First, heat the surface to 60 degrees. This can be done using a regular hair dryer. It should be heated evenly so that the glass does not crack and the glue heats up.
Next, you need to find a flat and thin object to easily disconnect the sensor from the matrix. To do this, simply pry the edges and carefully lift them up.

All that remains is to connect new sensor. How to do it? The kit should include the sensor itself and glue. First we apply special glue, and then carefully attach the sensor.

Cost of a new display

How much does it cost? Of course different models For smartphones, the cost of the screen will vary. On average, to change the display on phones with a diagonal of 4.5 or 5 inches, you will need to pay about 700 rubles.

If you don’t want to disassemble the phone yourself, you can contact a specialist. The master will ask about 2000 rubles. Although this procedure is not very complicated and you can change the screen yourself. You just need to approach this carefully and carefully.

Touch buttons don't work

Lower touch buttons directly relate to the screen and in the event of their failure, it is necessary to perform all the actions that we have already considered. If the touch buttons do not work, you should first do a full reset. Next, clean the system registry and scan your device for viruses. Unfortunately, if the steps taken do not help, you will need to change the screen.

Touch mobile phone in Lately has become one of the most popular models phone, because it is easy to use, and thanks to new technologies, you can significantly increase the size of the screen without increasing the dimensions of the phone. Mobile phone with a touch screen requires careful and careful attitude, because any impacts or damage can damage the sensor, causing the phone to stop responding to touch.

If a part doesn't work touch screen, it is necessary to find out the cause of the breakdown. Very often, due to impacts and damage, cracks appear on the touchscreen, which can lead to some area of the screen being damaged. In such a case, only replacing the phone's touch screen can help solve this problem. You need to find out which part of the touchscreen is not working. The problem may also be in the phone's cable. When dropped or bumped, it can move away, so the screen contacts are weakly responsive to touch. This is the reason why the phone does not always respond to presses.

If half of the touch screen does not work, we can say that the touch screen contacts that connect to the main board of the phone have come loose and the signal is not being transmitted correctly. This is why one half of the screen can respond adequately to touches, while the other half only works when you press the touchscreen hard enough. In this case, you need to carefully disassemble the phone and look at the touchscreen contacts. You need to do everything very carefully, since the device contains many small parts, if you lose them you will have to go to a phone repair shop.

The phone's touchscreen may not work because some parts have failed, but such cases are quite rare, since almost always the problem lies in the phone's touchscreen itself. There are also cases when the phone’s touch screen does not work after hypothermia. This happens especially often in winter. There is no need to panic, you just need to wait a little until the phone warms up. After this, the screen will work properly again.

Disassembling the phone is appropriate if dirt or moisture gets into the middle; this can also cause failure of certain parts of the screen. After everything is removed, you need to carefully reassemble the phone - the screen should work correctly. In any case, you should definitely consult with a specialist in this field.

Comments

All of the vertical applications do not work for me and I can never play or download games.

Here's a little about the touchscreen, maybe it will help:

There was a 10mm horizontal strip. I just did it like in the video. I didn’t believe it would work, but kicker #8212 works. Thanks a lot. By the way, a piezo lighter was enough. It’s not clear, but for how long?

Half of the screen doesn't work, the reason is that it broke, thank you very much, I'll just change the glass

What to do if one part of the tablet does not work

Occasionally part of the screen works

The tablet fell. A crack appeared on the screen, now half of the screen does not work completely (((

the screen is not broken, small does not work horizontal stripe in the center of the screen

This is vital, and also its namesake.

Found a solution to the problem?

Ahaha, two problems with the same problem)))

After the tablet was hit, a crack appeared on the inner glass. The tablet turns on but the screen is black, only the crack lights up. Please tell me the tablet can be repaired. How to save him?

No, you don’t need to send your tablet or phone for repair if the screen is leaking, because they will replace the glass and nothing will change, and it turns out that you just wasted your money.)

Unbroken phone does not work top horizontal part on the sensor

The entire phone does not work, the upper horizontal part on the sensor

The phone didn’t fall, the screen just stopped working, the curtain only opens and closes, the buttons rarely work, what can I do?

My screen doesn’t work in the middle and sometimes it doesn’t work in other places, it’s like it’s moving!

HALF OF THE SCREEN IS NOT WORKING WHAT TO DO HELP PLEASE

There is one small crack on the screen. One part works (top) and the other does not. what to do??

Broaaann't working top part sensor

Why is it on the top of the phone (Vertex for 5 k(((() the top doesn’t hurt but the bottom, great!

The sensor was replaced, the touch below did not work, and still does not work

I have a phone Umi London trashed the top part but the part below doesn’t work well before robotla so trashed

Hello, help me, my Asus Zenfon 2 has a problem with the upper part of the screen not working stably? Factory settings didn't help, could the cable come loose?

What is the name of the house to go back to the menu?!

Phone LENOVO S720 touchscreen partially does not work. There are greenish spots in places where #8212 does not work. what is the reason?

Tell me #8230I play on a tablet and often in 3D games, the movement and skill controls do not match the placement of buttons on the screen#8230how to solve the problem?

The bottom of the screen does not work, you have to turn the phone over every time. no cracks

Components electronic devices may break if used carelessly. If part of the touch screen on your phone is not working, it may be caused by: temperature conditions use and mechanical damage.

Competent diagnostics will help you repair a smartphone or tablet screen that does not respond to touch. Sometimes simple cleaning combined with disassembling the case helps. However, if after all the user’s actions the device does not turn on, it will have to be taken to the service, and this may lead to additional costs.

Causes of failure

There are the following reasons why part of the screen does not work:

Oxidation of contacts due to condensation. Moisture trapped inside the device can lead to complete or partial loss of functionality. Oxidized contacts stop responding to processor commands and transmitting them to the screen. To eliminate the consequences of liquid ingress, it is necessary to disassemble the device and clean it internal components. To do this, you can use alcohol applied to a cotton swab or swab. After this procedure, the phone should turn on in normal mode.
Cracks on the surface of the screen. Due to microdamage to the sensor, it stops responding to touches. Such damage occurs due to falls or impacts on the screen. You can identify cracks in the display by carefully examining its surface. If part of the touchscreen is covered with cracks, then it is possible to restore functionality using the device.
Disconnection of touchscreen contacts as a result of displacement. This usually results in the bottom or top half of the screen not working. To diagnose contact displacement, you need to disassemble the device and see if the visual order of the symmetry of the components is broken. If you see misalignment of the contacts, you can try to correct them using tweezers. In addition, some elements are fixed with glue, which can high temperatures melt and dislodge the contact. In order for the upper part to return to its place, you need to heat the mount with a hairdryer and return the component to its original position.

Features of the operation of electronic devices

In addition to the listed breakdowns, electronic devices may begin to malfunction due to the internal architecture. Limiting the size of components affects their power reduction if the tablet screen does not respond to touch - this may be a consequence of overloading the device with a large number of resource-intensive applications. For prevention, you need to start the task manager. Find out what is being loaded CPU devices, and disable unnecessary applications.

Electronic devices have increased sensitivity of screen sensors. A situation where the screen of a tablet or phone does not work may be due to simple contamination. The adhesion of grease and dust to the surface causes the tablet to not respond to touch.

If the screen on the tablet does not work, the most the best solution will take it to a service center for diagnostics. Most models have a very long warranty, which will allow you to replace the device with another device without defects or get your money back at no additional cost. If the case is not under warranty, perhaps you should just buy new gadget and subsequently treat it more carefully.