The touch screen is not responsive. The tablet screen does not respond to finger touches - what to do
It is running Android. The touchscreen (sensor) works by itself, it works some time after pressing, it tupits, lags, does not work correctly. What to do and how to fix?
Many users face the problem when phone either android tablet starts acting up. It seems that it didn’t fall anywhere and didn’t “water” with anything, but it doesn’t work the way it should.
For example, the device has problems with a touchscreen, i.e. the touch input (“sensor”) does not work correctly. The reason for this may be:
1st: Software failure- i.e. the problem is a software glitch
2nd: hardware failure- i.e. the problem lies in the "hardware" (i.e. - replacement or restoration of spare parts of the gadget is required)
However, do not rush to get upset - in 90% of cases with problems in the work of touch input (touchscreen) smartphone or android tablet is to blame software failure, which you can fix on your own.
Fixing a software bug:
Method 1. Pretty simple - go to "settings", find there "backup and reset" in which you choose full reset settings to delete all data. Be careful, using this method often turns out to be effective, but it entails deleting all photos, contacts, passwords, music, games, videos and, in general, all information stored on your smartphone e or tablet e. Therefore, first save everything you need by connecting the gadget to your computer. If this method does not suit you, or if the problem persists after it, see Method 2.
Method 2.
Based on solving touchscreen problems phone ov and tablets based on Android by introducing additional software. Utilities that control all processes inside gadgets. Today, there are quite a few of them, however, the fewer functions an application contains, the more, as a rule, it is effective. Best of all, it controls the system functions, corrects, and fixes all possible settings and synchronization errors, a small, easy-to-use, free utility for Android devices. You can download the application from Google Play and see its additional options in the description. After installing the application, it remains only to launch it. Further, from you, in principle, nothing more is required. The application will take full control of the device functions. (By the way, among other things, the gadget will start charging 20% faster, and its performance will also increase significantly, which will affect the loading and operation speed of all applications, games, and the system as a whole. On average, after scanning, the system runs on 50% faster.)
Method 3.
Changing the device software, or, as it is also called "re firmware ". This method, as a rule, requires certain skills and is solved by contacting the Service Center. For the independent implementation of this task, you need to contact the manufacturer's website of your device, download the utilities necessary for the firmware and the firmware itself, and then reinstall it on your gadget.
If none of the methods brought results, unfortunately, you will have to contact the Service Center for repair of your tablet a or smartphone a.
The touchscreen (sensor) does not work well on an Android phone or tablet. The touchscreen (sensor) works by itself, it works some time after pressing, it tupits, lags, does not work correctly. What to do and how to fix?
Since a smartphone or tablet computer usually does not have control buttons, if the sensor malfunctions, all functions of the mobile phone are lost immediately. Problems usually appear after the phone is dropped or moisture gets inside the tablet, although sometimes the sensor stops working on its own. In this article, we will consider ways to troubleshoot problems with the touch screen of modern gadgets.
The sensor of the cause of the malfunction does not work |
There are many different reasons that can lead to such a malfunction in modern mobile devices:
The gadget's memory is heavily overloaded and the device simply does not have enough hardware resources to process all the clicks
Over time, any sensor can be covered with a bunch of fatty fingerprints. This leads to a strong deterioration in the sensitivity of the touchscreen. To fix the problem, it is recommended to thoroughly wipe the display with a special cleaning liquid and a cloth
From a sharp temperature drop, the sensor may also stop working, although usually this malfunction goes away by itself, you just need to wait
The cable that provides connection to the touch cover has come loose or damaged. You can fix this problem yourself, but only if the warranty period has expired, otherwise you may lose the last one.
If , the touchscreen may also stop working
If you use the device in a marine climate, over time, oxidation of various contacts will occur in the gadget, this problem can be easily eliminated by careful cleaning
In addition, none of the owners of a smartphone or tablet is immune from software failure, in which case you will need to reflash your mobile phone. To do this, you need to download the software and have the right cable for firmware in your arsenal.
The simplest thing to do is reset your phone or tablet to factory settings, for this you will need to disconnect the battery and pull out the SIM card, while for a number of tablets you need to very carefully remove the cover of the plastic case, while you should be especially careful not to break the plastic clips.
Lost sensor cable how to fix, see this video tutorial:
Repair of the cable and touchscreen connector on the example of a Lenovo A369i mobile phone
Replacing the touchscreen (sensor) Huawei G510
Replacing the sensor with a fly after a fall
iPhone 5 touchscreen not working, problem solving
The touchscreen problem arose after a strong impact that shattered the screen and touchpad. They were changed to new ones, but the sensor did not want to show signs of life at all. I decided to look for a "jamb" with a special predilection and started with the connector for connecting the X2502 sensor. I immediately found out that there are no signals on pins 2, 8 and 15. The second and fifteenth pins go to the N2564 touchscreen controller, and one eighth through the R2534 resistor, and the signal went through to the resistor.
On the circuit diagram, the dangling tracks are highlighted in blue.
After I separated the sensor connector, I saw a break in the track on the 2nd contact of the X2502 sensor. We also managed to identify two breaks near the N2564 sensor controller chip itself under the protective shield mounting contacts, which were possibly pulled off the board due to a strong impact.
After the final check of the sensor's performance, the soldering spots of the tracks were filled with epoxy glue for good fixation and protection against accidental short circuits.
Samsung Galaxy phones, especially the Samsung Galaxy S3, S4, and S5, are notorious for having problematic screens. Many users either have a blank screen, black screen even though the phone is fully charged, responsive or unidentified dots on screen screen. If you've just bought one of these models and are thinking, don't worry. In this article, we will let you know the reasons for these crashes, how you can get your data back, and how to fix the screens. The most common problem is Samsung's sensor not working. Let's see how to fix this.
The touch screen of the phone is completely unresponsive to touch. What to do?
Samsung does not manufacture a defective product. But phones are exported long distances around the world. This may affect the operation of the touch screen.
Samsung phones are pretty thin. The touchscreen controllers they use are scaled down in favor of phone size. This can affect their performance and durability.
There could be several reasons that caused the Samsung Galaxy screen problem. Depending on the problem, you may be able to narrow down the causes of the failed touch screen.
I. Blank screen
This is a very common issue for all smartphones, not just Samsung Galaxy phones. This is usually caused by:
An app or feature on your Samsung is frozen, frozen;
There is not enough battery to power the device;
Actual physical damage to the touch screen.
II. Screen not responding to touch
Screen numbness is usually caused by a system failure, be it software or hardware. A software problem will be easier to fix. Here are some of the causes of an unresponsive screen:
Problematic third-party application;
Your Samsung Galaxy phone is frozen, frozen;
There is a bug in one of the hardware inside the device.
III. dead pixel
These unknown spots are caused by dead pixels that were caused by:
The third party app keeps crashing;
Physical damage to the screen in a specific area;
The GPU has issues with a third party application.
The manufacturer's defect, in this case, contact the warranty and they will change the phone for you.
The problem with Samsung sensor not working or freezing problem can be solved by turning off the phone and turning it back on. Press and hold the Power button and Volume Down button for 7 seconds. The phone will be turned off. The issue will most likely be resolved after downloading it. If the phone does not respond, remove the cover and remove the battery, then reinsert and turn on the phone.
Remove SIM Card
Shut down your Galaxy and take out the Sim card. Now re-insert the Sim after a few seconds, turn on the phone and see if anything has changed?
Boot Phone in Safe Mode
This is another helpful step to get rid of touchscreen issues if it is some third party application that is causing the problem. Safe Mode disables all third-party apps temporarily, and if you are not experiencing the issue while in Safe Mode, it must be a third-party app that is causing this problem.
To boot your phone in safe mode, follow these steps:
1. Completely turn off the device
2. Now press the power button for a few seconds until the Samsung Galaxy logo appears
3. Then release the power key and press the volume down button. The phone will restart.
4. Keep holding this button until the phone restarts.
5. It will show safe mode on the bottom left corner of the phone.
Once you're sure it's the third-party apps that are causing this issue, uninstall them by going to settings > App > App Manager > swipe on the downloaded options > select the desired app > Uninstall and finally tap OK. If you have a lot of apps, it can take a long time to uninstall them one by one, so you can perform a factory data reset (explained below).
Clear Phone Cache
Another solution to the problem is deleting the cache. Here's how to do it.
1. Turn off your smartphone completely
2. Press and hold the Home button and the Volume Down button, and then press the Power button
3. Keep holding the buttons and when the Samsung logo appears, release the power button but keep the home button and the volume down button
4. When you see the Android logo, release the other two buttons
5. The message "Installing system update" will appear, followed by the recovery screen
6. To highlight "Wipe cache partition", use the volume down key and press the power button to select it.
7. When it's done, use the volume down key again to highlight the "Reboot system now" option and select it with the "Power" button.
Let Your Phone Relax
Samsung Galaxy touch screen malfunction can be stopped by preventing overload. The phone tends to freeze if it's overworked, unlike other phones that quickly heat up or drain the battery. It just hangs. Most users mistakenly accept the solution to the touch screen problem, when in fact, most of the internal parts of the phone are at a standstill. This can happen if you play games or make videos for a very long time. Wait a while before using your phone again.
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Faulty GPU. If you're using your Galaxy for gaming, your graphics processing unit (GPU) may be stretched to its limits. To clear those dead pixels, you need to clear the RAM cache, close all running apps, and restart your phone.
Perform a Hard Reset
If you find that all the steps above fail to fix the problem - Samsung sensor not working, try performing a hard reset. It will remove all files and apps from your Galaxy and reset your phone to factory settings. Below are the steps to perform a hard reset:
1. Press the volume up, power and home buttons and hold until you see the Galaxy screen.
2. Now leave the power button, but keep holding the other two buttons.
3. Release the two buttons when you see the Android recovery screen.
4. Use the volume up and down buttons to highlight options and the power button to select.
5. Select factory resets which will wipe everything from the device and then reboot the system.
Sensor Not Working on Samsung – Hardware Issues
The Samsung Galaxy is relatively new in the market, but there are still many complaints regarding the Galaxy Touch Screen as many people are facing such issues. It's certainly very annoying if your touch gives you a slow response time or doesn't work at all.
The following are some of the Samsung Galaxy touch screen issues that its users are facing:
Problems:
- Click "Stop Application"
- Slow response
- The sensor does not work on some sections of the screen.
Causes of problems:
- Phone cache is almost full.
- There has been some physical damage to your display screen that has partially or completely broken the phone's touch screen function.
- A low charge sometimes also causes a slow touch response.
Temporary solution:
1. Reset your phone.
2. Remove and reinsert the battery (after switching off). Be sure to allow a delay of at least 5 seconds before inserting the battery.
The hardware solution for Samsung Galaxy is divided into two sections:
- Touch screen problem
- Problem with Button Touch
Touch screen problem
1. Disconnect the connectors and check the display connectors.
2. Now clean the onboard connector and the display connector. After cleaning.
3. Re-solder each pin of the built-in connector
4. Using the Multi Meter, check each component of the connector. Reheat faulty connectors. If they still don't work, replace them. Check Again
5. If it still doesn't work, check any other good LCD as sometimes the problem is with the whole LCD screen not just when you touch your phone.
Problem with Button Touch
- Connector for connecting a functional button and a connector for charging. Now check.
- If it still doesn't work, check the charging connector if that's problematic. Change it as there is nothing you can do in this case.
The above steps will surely help you fix the touch screen problem from your Samsung Galaxy in the most efficient way. If your touch screen is giving you problems, then your phone has become a complete crippler as you won't be able to do anything on your phone (don't even unlock your phone in any way).
I replaced the display on the phone and now the Samsung sensor does not work!
1. If you have a white or all black display, start by performing a soft reset on your device. If your screen still won't work after a reset...
2. Retry the repair from the beginning. In the step where you connect the shield to your main board, check the original shield to make sure it still works.
3. Blockage on your display, this is a sign of too much pressure on the screen caused by shipping or during installation. Open the device again and make sure none of your internal components are causing pressure.
4. If you see lines down your display or only partially working touch features, then you may have a defective or broken part.
Samsung Galaxy screen not working is a preventable problem. Here are some helpful tips to protect your Samsung:
To properly protect your Samsung Galaxy display panel, use a really good protective case. This will prevent the screen from being damaged, cracked or scratched after being dropped.
Sometimes your phone has manufacturing faults. So to keep your phone and you protected, make sure you keep your warranty until it expires. This ensures that you get the support you need from Samsung if the problem is not caused by your negligence.
Install reliable antivirus software to protect your system from malicious attacks.
Before downloading any apps, make sure you read the reviews. This is a great way to find out if an app is viral and will cause problems for your Samsung Galaxy. The best way to do this is to filter reviews according to reviewers who use the same device.
Try not to play games with too large graphics, as this will expand the capabilities of your device. Either play one game at a time or play in a small amount of time.
Do not overcharge your battery at the same time - this will increase the chance of your phone overheating, which can damage your phone's components.
While there can be multiple causes for Samsung Galaxy screen problem, there are an equal number of ways to counteract them. Therefore, there is no need to panic - this article is a great example for solving your problems.
If you do not solve the problem - Samsung sensor does not work, please let us know in the comments, we will help.
Modern gadgets have become an integral part of our lives. The phone 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 the service center. Otherwise, do not rush, because there are times 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 the cause of your display failure. This can be mechanical damage, liquid getting inside the device, or a software failure. If you are sure that you did not drop your phone or spill liquid on it, then you can assume that this is a software glitch.
Mobile phone screen cleaning
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 can help if the sensor does not respond to touch. What to do?
We take a suitable cloth and liquid to clean the screen. It is better to use a lint-free or any other natural fabric. To clean the display, we need an eyeglass or monitor cleaner.
If this method does not help, then you should proceed to the next steps. Of course, they can't help either. The true cause of the breakdown can only be established by a professional, but he can not solve every problem.
A software glitch that caused the display to break
If the display of the mobile device sometimes reacts to your touches, then you can try to make a Hard Reset of the system, this is a complete reset. But it is worth remembering that this can only help if the sensor is buggy from time to time. After resetting the settings, install applications that can clean the 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 for you if you are not sure about 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 back in place and check the device with an antivirus. Select full device scan and wait. But even after the actions taken, the sensor does not respond to touch. What to do? In this case, it is necessary to proceed to the replacement of the sensor, since the cause is not caused by a software failure.
Mobile phone display replacement
The sensor does not respond to touch - what to do? If the previous methods did not help, then you need to change the damaged display. Most often, this should be done when the device has fallen, cracks have appeared, or moisture has got in. In the latter case, you may not even notice how liquid got into the phone, as this can happen due to temperature changes. So, the condensate that accumulates in a mobile device will interfere with the normal operation of the phone. At first, black spots may appear when working with the gadget, and later the sensor itself will stop responding to touch. In this case, you will need to change the screen.
Repairing a phone screen is not a very complicated process, the main thing is attentiveness and accuracy. This can be done by anyone. The sensor does not respond to touch - what to 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 with a thin object. You will need to carefully remove all the 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, because when ordering a new screen, this aspect will need to be specified.
The sensor can also be connected to the PCB in a variety of ways. There is a contact method, while the sensor is simply disconnected, and wired. 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 with 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 detach the sensor from the matrix. To do this, simply pry the edges and gently lift.
It remains only to attach a 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.
The cost of a new display
How much it costs Of course, the cost of the screen will differ for different models of smartphones. 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 do not want to disassemble the phone yourself, then you can contact a specialist. For the master will ask about 2000 rubles. Although this procedure is not very complicated and you can change the screen yourself. Only this will need to be approached carefully and carefully.
Touch buttons not working
The lower touch buttons are directly related to the screen and in case of their failure, it is necessary to do 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 check your device for viruses. Unfortunately, if the steps taken do not help, then it will be necessary to change the screen.
Push-button phones have been replaced by touch devices. What has changed after this technology has firmly entered our lives? Almost everything that is in any way related to the functioning of the device. That is why the situation in which the sensor stops working requires immediate resolution. And in many cases, a person has almost every chance to restore his device. We'll talk about this in more detail later.
Why did the sensor stop working?
There are quite a few reasons why the sensor on the phone does not work (what to do is described below). Given the manufacturability of the touchscreen, as a rule, most often this control is rather fragile and finicky. Its performance is most dependent on weather conditions, damage, and liquid ingress.
If there was a software failure or a spontaneous failure of the system to work, then there may be problems with the operation of the sensor. These shortcomings, in principle, are conditional, they can be easily avoided. We can seriously say that a person is the most important factor in the performance of a mobile device. It is the actions of the owner that will determine how long the device will be in operation and why the sensor on the phone does not work.
Common Touch Screen Problems
Often, breakdowns are formed due to mechanical damage. If the phone is dropped or deformed, the device will not work properly as a result. Due to impacts or other mechanical influences, various consequences can occur. As a rule, they can be ordinary lid chips at best, or a cracked display at worst. If the deformation of the case does not affect the operation of the gadget in most cases, then the screen will need to be replaced. If the sensor stops working, then you need to pay attention to the components of the mobile device. If there is a body part slightly moving away from the display and you can notice a gap, then you should immediately carry the phone for repair.
Sometimes a smartphone may stop working if liquid gets into it. It is completely incomprehensible to many how water manages to get on the board, but this is a common problem.
Self-Rehabilitation
If the sensor on the phone does not work, what to do is not clear, then you must first go to the device settings. There you need to calibrate the touchscreen. Often this feature can be found in the main settings. These actions can be carried out if the screen is completely in order, the case is intact, there are no signs of deformation or oxidation. If the sensor has a perfectly smooth surface, then it is likely that the touchscreen has simply turned off.
If the forecasts are not entirely optimistic, the sensor on the phone still does not work, what should I do? It is better to start looking for a solution to your problem right away. In order to perform the following actions, you must have certain skills.
Oxide elimination
In order to eliminate the oxide, it is necessary to use a special tool - this is a Phillips and flat screwdriver. An unnecessary plastic card will also work. You should take alcohol, a toothbrush, an eraser and napkins. Before you disassemble your device, you need to watch the video, which describes how to do it. To do this, simply type in the search engine the model of your phone and look at the reviews on it.
Care must be taken when separating the body parts. There is a risk that a person may fly a cable, break wires or break any parts. In order not to get lost with the screws, you need to draw a diagram of the phone and arrange the screws according to the drawing. All accessible places that liquid can get into should be wiped with alcohol, then with an eraser and then blotted with a napkin.
In order to eliminate corrosion of the board, you need to use a toothbrush. Often this is the reason that the phone sensor has failed. Where there is a connection of loops, especially if we are talking about the touch screen connector, you need to treat with alcohol and remove the coating with an eraser. As a result, the surface will be dry and clean.
If there was a peeling or displacement of the screen, then this is probably the problem. Often in such cases, the phone sensor fails. In order to put the screen in place, you must use a hair dryer. You can peel off the touchscreen from the display by simply heating it. The glue will dry, and then it will be easy to move the sensor to the right place.
The device must be assembled carefully and carefully, installation must be sequential. Don't forget to screw in the screws. It is also necessary to put protective cases back on the microcircuits.
Other ways: how to fix the problem
There are many other reasons why a sensor can fail, so human actions will directly depend on the failure. Sometimes you can solve this problem on your own, remembering that repairing touchscreen phones is an expensive service. For example, if the sensor does not work due to surface contamination and does not respond to touch, then it is necessary to wipe the screen with a liquid. You should also use a soft cloth. This is necessary if the question arises of what to do - the sensor on the phone does not work.
If the protective film was installed incorrectly and now the lower part of the sensor on the phone does not work, it is necessary to replace this coating by cleaning the screen from dirt. Often dust and dirt gets under the film. This is what makes it difficult to work with the sensor.
In other cases, a software glitch may be the cause. It is easy to solve such a problem by resetting the settings or flashing the device. In the most urgent cases, contact the service center. We'll talk about this below.
If the sensor on the phone does not work for no apparent reason
If the sensor stopped working for unknown reasons, then it is better to contact the service center and carry out a complete diagnosis of the phone. This is the only way to find out the true cause of the breakdown and eliminate it without harm to yourself and the extra money spent. If the phone is still under warranty, then you can easily replace the sensor or solve the problem itself. As a rule, experts answer the question of why the sensor on the phone does not work quite quickly. This method is the most efficient. If a person does not want to harm his phone, it is best to immediately contact the service center as soon as a breakdown occurs. You should not, if there is no self-confidence, try to solve this problem on your own.
Results
Summing up, it must be said that the phone should be treated with the utmost care. Replacing a sensor on a phone is quite a complicated process and also expensive. Therefore, it is best to provide your device with the most ideal working conditions. No need to throw it or treat it carelessly. Be sure to periodically wipe the screen, change the protective film, only then you can really achieve excellent and long-term operation of the touch screen. If the gadget is under warranty, then replacing the sensor on the phone will be a free service.
