• The home button on the phone does not work. The bottom buttons on the smartphone do not work

    If we talk about possible reasons why the touch buttons on an Android phone stopped working, the failure is more often on the physical side than the software side. If there are reasons from the first list, most likely you will have to take the device to a service center.

    Physical reasons:

    • A strong blow to a tablet or smartphone, a fall from a height.
    • Prolonged exposure to moisture. Particularly serious damage occurs due to water getting into the area between the screen and the film or under the housing. Contacts are oxidized. After exposure to moisture, action must be taken immediately.
    • Sudden temperature changes. Return the device to room temperature. Sensor performance may improve.
    • Punching the screen. There are no scratches or cracks. The damage is noticeable when pressed - then glare is visible in the damaged parts of the sensor.
    • Replacing the screen with an unsuitable model.
    • Serious contamination. Wipe away dirt, dust, moisture, and fingerprints with special wet wipes from an electronics store or a microfiber cloth.
    • Poorly applied film. In places where air accumulates under the film, parts of the screen will stop working. Remove the film and, if possible, replace it with a new one.

    Software reasons:

    1. The OS is overloaded with applications or some of them are not working correctly.
    2. Changes device settings.
    3. Touchscreen problems are possible if the screen does not recognize touch correctly or poorly. Screen calibration will help here (you can actually do it at home).
    4. Inappropriate or unstable firmware version.

    Why doesn't part of the sensor work on Android? Most likely, the contact has come loose or oxidized.

    On the phone with removable battery remove the cover and take out the battery. Insert it back and turn on the device using the mechanical button.
    If the sensor does not work partially, but not completely, and you can download the application, install Rebooter from Play Market. On Xiaomi, Meizu or Digma, after long pressing the on/off button (20 seconds or longer), the phone will reboot or turn off. For Samsung and Sony, press the Power/Lock, Volume Up, and Volume Down buttons simultaneously. Hold for 7-10 seconds. If that doesn't work, try again, but hold down these three keys longer. If your smartphone is from other manufacturers and has a built-in battery, perhaps the above methods will help. Otherwise, you will have to wait until the battery is completely discharged or take the device to a service center, where they will also sort out problems with the screen. It also happens that a reboot is needed just to get the display to respond again. What to do if the sensor on Android does not work after locking the screen?


    Most often the problem is with the firmware version. To solve this, update the Android version and, if that doesn’t help, reset the settings. How to do this is in paragraphs 2 and 4 of the instructions in the next paragraph of the article. Why don't touch buttons work on an Android phone? Sometimes the problem is the film. If everything was fine before, try to remove it. Sometimes it's even new protective glass, which can also be disconnected independently. Users say that the bottom touch buttons stopped working after calibrating the screen (3rd step following instructions), became sensitive again.

    Common repair options

    These steps will help in many cases of malfunctioning of a phone or tablet running Android OS due to software, so you can apply these tips when you doubt the system is working properly.

    • Reboot your device. Perhaps it was under heavy software load or a minor error occurred. Maybe the application just froze, but the sensor is working?
    • Update the firmware. To do this, go to the following items: “Settings” – “About device” – “System updates” – “Check now”. More often than not, the problem is solved.
    • Reset settings to factory defaults. Save all important data to a memory card, computer or similar storage device. Click “Settings” – “Memory” – “Reset to factory settings” – “Reset settings” – “Erase everything”. If necessary, confirm your choice. Wait a few minutes and the reboot will happen automatically
    • What to do if the screen is glitchy? If it works but is slow, just clean the phone as a whole. Remove extra files and applications and cache (“Settings” – “Applications” – any application from the list – “Clear cache”). For removing other debris and cleaning RAM use CCleaner, Cleaner Master or another application.

    How to fix your device

    It is unlikely that you can fix your phone yourself. You will succeed when the problem is in the software. In this case, read the methods below.

    1. Calibrate your screen. Depending on the manufacturer, there may be a built-in utility for this, or you may have to download the application yourself. There are several ways. For HTC models: “Settings” – “Language and keyboard” – “HTC Sense Input”. On other smartphones: “Settings” – “Display” – “Display” – “Screen calibration”. If desired, you can calibrate the screen via engineering menu. It is used by developers to test and change system components. We do not recommend this method as it can cause problems and takes longer than other methods. A third-party screen calibration application from the Play Market can improve the display's response. For example, Touchscreen Calibration or SGS Touchscreen Booster (you can set parameters manually in it).
    2. The bottom touch buttons on an Android phone do not work, what should I do? You can install an application to create soft buttons with the same functions, but in a different location. We recommend Back Button - it does not require root rights.

      3. Contact the service center. There they will more accurately determine the cause and repair the device.

    The touch screen of a smartphone provides the user with much more control over the phone than regular phone with physical buttons.

    But, unfortunately, refusal touch buttons- the phenomenon is not so rare, and in terms of reliability they are in no way superior regular buttons. Find out what to do if the touch buttons on your smartphone do not work and why this happens.

    The simplest reason is dirt.

    The sensitivity of the sensor in a smartphone directly depends on its cleanliness. If you touch the screen with dirty hands, dirt particles stick to the glass and then reduce the sensitivity of the sensor until it fails completely.

    To return the touch buttons to their normal state, just wipe the screen with a damp cloth designed specifically for cleaning monitors. You can prevent frequent screen contamination by using protective film, which will not only protect against unwanted substances sticking to it, but also protect against scratches and small cracks.

    Inaccurately applied film

    Applying a protective film is not an easy task. There should be no air bubbles remaining under it, otherwise some touch buttons will not be able to fully function.

    Many phone owners undertake to stick the film on their own, but subsequently are forced to contact service specialists, because due to poorly glued film, the sensitivity of the sensor deteriorates and the buttons do not work.

    Temperature imbalance

    Failures of touch buttons due to inappropriate temperature are most common in winter, when the thermometer drops below 10-15 degrees below zero. The phone's LCD screen is sensitive to low temperatures and if overcooled, it may stop functioning as required.

    If the exposure to low temperatures was short-lived, after warming up the phone itself will quickly return to normal operating performance.

    The touchscreen has moved or is peeling off

    If the phone is used in hard mode, and its owner constantly exposes delicate equipment to various negative influences, touchpad, or touchscreen, may peel off from the screen in some places. If this happens at the bottom of the smartphone screen, the functional touch buttons may stop working.


    To get rid of this problem, you should warm up the touchpad with hot air to soften the special glue that attaches it to the screen. It is better not to try to do this yourself, so as not to worsen the situation even further. Contact specialists from service center who have experience and necessary equipment for such manipulations.

    Software glitch

    If the touchpad is sparkling clean, and even the most careful inspection does not show any damage, but the touch buttons still do not work, the smartphone software may have malfunctioned. Reboot operating system by turning off the phone and then turning it on again.

    This simple step usually eliminates occasional errors. If this does not happen, remember - perhaps before the touch buttons failed, you installed a new application or updated one of the already installed applications. Sensor failure can be caused by a software conflict between old and newly installed utilities. Uninstall the new application and restart your smartphone - it is possible that the touch buttons will restore functionality.

    Viral infection

    The widespread use of smartphones has forced hackers who write viruses to pay attention to this segment of software. Today, antivirus on a smartphone is the same essential piece of software as on a regular computer.

    If you don't have antivirus protection, it is possible that the failure of the touch buttons is caused by actions malware. Download good antivirus and scan your phone, then mercilessly delete all files that seem suspicious.

    Reset settings

    If none of the above measures work, you are left to try the last available remedy ordinary user. Reset your phone to factory settings.


    If the failure of the touch buttons was caused by any software reasons, as a result of the reset all errors will be reset along with your personal settings, application updates, and even the applications themselves installed while using the phone. After the reset, the functioning of all elements of the phone resumes in the vast majority of cases.

    Custom firmware

    If you have installed the so-called custom firmware, then you should be aware that from now on the manufacturer is not responsible for its performance.

    Often the consequence of such actions is failure of some functions. What’s most offensive is that you don’t even have anyone to file a complaint with. The only way out is to return to the factory firmware, which can be downloaded from the website of your phone manufacturer.

    Phones Samsung Galaxy, especially the Samsung Galaxy S3, S4 and S5, are known for their problematic screens. Many users either have a blank screen, black screen despite the phone being fully charged, or unidentified dots stuck on the screen. If you just bought one of these models and are wondering, don't worry. In this article, we will tell you the reasons for these crashes, how you can get your data back, and how to fix the screens. The most common problem is that the Samsung sensor does not work. Let's figure out how to fix this.

    The phone's touch screen does not respond to touch at all. What to do?

    Samsung does not manufacture a defective product. But phones are exported to long distances all over the world. This may affect the operation of the touch screen.

    Samsung phones are quite thin. The touchscreen controllers they use are scaled down in favor of phone size. This may affect their performance and durability.

    There could be several reasons that caused the Samsung Galaxy screen problem. Depending on the problem, you can narrow down the causes of a faulty touchscreen.

    I. Blank screen

    This is a very common problem for all smartphones, not just Samsung Galaxy phones. This is usually caused by the following:

    An application or function in your Samsung is frozen or frozen;

    There is not enough battery to power the device;

    Actual physical damage to the touch screen.

    II. The screen does not respond to touches

    Screen insensitivity is usually caused by system failure, be it software or hardware. The software problem will be easier to fix. Here are some of the reasons for an unresponsive screen:

    Problematic third-party application;

    Your samsung phone Galaxy froze, hovered;

    There is an error in one of the hardware inside the device.

    III. Dead pixel

    These unknown spots are caused by dead pixels, which were caused by:

    Third party app keeps crashing;

    Physical damage to the screen in a specific area;

    The GPU is having problems with a third party application.

    The manufacturer is defective, in this case, contact the warranty and they will replace your phone.

    Samsung sensor not working problem or freezing problem can be solved by turning off the phone and turning it on again. Press and hold the Power button and Volume Down button for 7 seconds. The phone will be switched off. The problem will most likely be resolved after downloading it. If the phone does not respond, remove the cover and battery, then reinsert and turn on the phone.

    Remove SIM Card

    Shut down your Galaxy and eject Sim card. Now reinsert the Sim after a few seconds, turn on the phone and see if anything has changed?

    Boot your phone into Safe Mode

    This is another useful step to get rid of touch screen problems if it is some third party app that is causing the problem. Safe Mode temporarily disables everything third party applications, and if you are not facing the issue in this mode, it must be a third party application causing this issue.

    To boot your phone into safe mode, follow these steps:

    1. Turn off your device completely

    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. Continue holding this button until the phone restarts.

    5. He will show safe mode in the lower left corner of the phone.

    Once you are sure that it is third party apps that are causing this problem, uninstall them by going to Settings > Application > Application Manager > swipe downloaded options > select the right application> Delete and finally click OK. If you have many apps, deleting them one by one may take a long time, so you may want to perform a factory data reset (explained below).

    Clear Phone Cache

    Another solution to the problem is to delete the cache. Here's how to do it.

    1. Turn off your smartphone completely

    2. Press and hold the Home button and Volume Down button, and then press the Power button

    3. Continue holding the buttons and when the Samsung logo appears, release the Power button but hold the Home button and Volume Down button

    4. When you see Android logo, release the other two buttons

    5. The message “Installing a 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. Once this is done, use the Volume Down key again to highlight the “Reboot system now” option and select it using the Power button.


    Give Your Phone a Rest

    Samsung Galaxy touch screen malfunction can be stopped by preventing overload. The phone tends to freeze if it is overworked, unlike other phones that quickly heat up or drain the battery. It just freezes. Most users mistake the solution to the touch screen problem, when in fact most of the internal parts of the phone are at a dead end. This can happen if you play games or shoot videos for a very long time. Wait a while before using your phone again.

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    Faulty GPU. If you use your Galaxy for gaming, your graphics processing unit (GPU) may be stretched to its limits. To clear these dead pixels, you need to clear the RAM cache, close everything running applications and reboot your phone.

    Perform a Hard Reset

    If you find that all the above steps do not resolve the issue - Samsung sensor not working, please try: 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 until you see the Galaxy screen.

    2. Now leave the Power button but continue to hold 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 data reset, which will erase everything from the device and then reboot the system.

    The sensor does not work on Samsung - Hardware problems

    Samsung Galaxy is relatively new on the market, but there are still many complaints about the Galaxy Touch Screen, as many people face such problems. It is definitely very annoying if your touch gives you slow response time or doesn't work at all.

    Below are some touch problems Samsung screen Galaxy that its users encounter:

    Problems:

    • Click "Stop Application"
    • Slow response
    • The sensor does not work on some sections of the screen.

    Causes of problems:

    • The phone's cache is almost full.
    • There has been some physical damage to your display screen that has partially or completely disrupted the phone's touchscreen function.
    • Low battery sometimes also causes slow touch response.

    Workaround:

    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 feature

    Touch screen problem

    1. Disconnect the connectors and check the display connectors.

    2. Now clean the onboard connector and display connector. After cleaning.

    3. Re-solder each pin of the on-board connector

    4. Using the Multi Meter, check each connector component. Overheat faulty connectors. If they still don't work, replace them. Check again

    5. If it still doesn't work, try any other good LCD screen, as sometimes the problem is with the entire LCD screen not just when touching your phone.

    Problem with Button Touch feature

    • Connector for connecting a function button and a connector for charging. Now check.
    • If it still doesn't work, check the charging port if this is problematic. Change it as there is nothing you can do in this case.

    The above steps will surely help you solve the touch screen problem from your Samsung Galaxy in the most in an efficient way. If your touch screen is giving you problems, then your phone has completely become a crippler as you will not be able to do anything on your phone (not even unlock your phone in any way).

    I replaced the display on my phone and now Samsung's sensor doesn't 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 resetting...

    2. Try the repair again from the very beginning. In the step where you connect the shield to your main board, check original screen to make sure it is still working.

    3. Blockage on your display is a sign of too much pressure on the screen caused by transportation or during installation. Open your device again and make sure that none of your internal components does not cause pressure.

    4. If you see lines down your display or only partially working touch functions, then you may have a faulty or broken part.

    Samsung Galaxy screen not working is a problem that can be prevented. Here are a few useful tips to protect your Samsung:

    For proper protection For Samsung Galaxy display panels, use a really good protective case. This will prevent the screen from being damaged, cracked or scratched after a fall.

    Sometimes your phone has manufacturing faults. So to keep your phone and you protected, make sure you maintain your warranty until it expires. This will ensure that you get the support you need from Samsung unless the problem is caused by your negligence.

    Install reliable antivirus software to protect your system from malicious attacks.

    Make sure you read the reviews before downloading any apps. This great way find out that the application 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 much graphics as this will expand the capabilities of your device. Either play one game at a time or play in a short period of time.

    Do not overcharge the battery at the same time - this will increase the likelihood of your phone overheating, which can damage your phone's components.

    Although a Samsung Galaxy screen problem can be caused by several reasons, there are an equal number of ways to counteract them. Therefore, there is no need to panic - this article is a great example for solutions to your problems.

    If you have not solved the problem - Samsung sensor does not work, please let us know in the comments, we will help.

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