The buttons on the Android under the display do not light up. How to enable on-screen buttons if the physical ones no longer work

Samsung Galaxy phones, especially the Samsung Galaxy S3, S4 and S5, are known for having 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 long distances around 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 a system glitch, 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 Galaxy phone is frozen and frozen;

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 remove the 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 all third-party apps and if you are not facing the issue in this mode, it must be a third-party app causing the 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. It will show Safe Mode on the bottom left corner of the phone.

Once you are sure that it is the third party apps that are causing this problem, uninstall them by going to Settings > Application > Application Manager > Swipe down the downloaded options > Select the app you want > Uninstall and finally click OK. If you have a lot of 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 the 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 all running apps and reboot your phone.

Perform a Hard Reset

If you find that all the above steps fail to resolve the Samsung sensor not working problem, try performing a hard reset. It will remove all files and apps from your Galaxy and return 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 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 in the market, but there are still a lot of complaints regarding the Galaxy Touch Screen as many people are facing such issues. It is definitely very annoying if your touch gives you slow response time or doesn't work at all.

Below are some of the Samsung Galaxy touch screen problems faced by its users:

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.

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 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 then check any other good LCD screen as sometimes the problem is with the whole LCD screen not just 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-mentioned steps will surely help you solve the touch screen problem from your Samsung Galaxy in the most effective 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 the original shield to make sure it still works.

3. Blockage on your display is a sign of too much pressure on the screen caused by transportation or during installation. Open the device again and make sure that none of your internal components are causing 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 some useful 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 a fall.

Sometimes your phone has manufacturing defects. 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 is a great way to know that an 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.

Troubleshooting at home

A common cause of failure of all buttons is the smartphone being left in a damp place for a long time or a strong impact. In the first case, the contacts may have oxidized and the problem can be solved by cleaning them. In the second case, you will need to diagnose the device, which we recommend entrusting to the engineers of the HTC smartphone repair center. What to do if you want to fix the problem yourself, and the reasons for its occurrence, read below.

Solutions to the problem

1. Determining the state of the buttons. In order to understand how serious the problem you are facing is, you need to determine whether the bottom buttons respond to touch. To do this, you need to enable a function called “Vibration Confirmation”. To activate it, go to the “Settings” - “Sound” menu, and at the very bottom of the list that appears, check the box next to the “Vibrate confirmation” function.

Your smartphone should now vibrate every time you press the bottom buttons. If this happens, proceed to the next step. If not, try steps 3, 4 or 5 from these instructions.

1. Screen calibration. To do this, go to the “Settings” menu - “Language and keyboard” - “HTC Sense Input”.

Select "Advanced Settings" - "Calibration Tool". After this, a sentence will appear on the screen that must be typed on the keyboard. Follow the green circle.

If you can’t calibrate the keyboard, or you do it incorrectly, then go to “HTC Sense Input” - “Advanced settings” - “Reset calibration”. This will return the screen calibration to factory settings. Then you can perform the calibration again.

1. Software Update. The problem with non-working buttons may be due to outdated software on your smartphone. Update the software, this method often helps.

1. Soft reset to factory settings. Having previously saved all the data from the internal memory of the smartphone to removable media, reset the device settings to factory settings. We recommend performing a reset only for those users who were unable to resolve the problem using the two previous methods. To reset the settings, go to the “Settings” - “Memory” - “Reset to factory settings” menu.

Then a menu will appear in which we select “Reset phone settings” - “Erase everything”.

1. Hard reset to factory settings (this method will be useful for those users whose touch buttons do not work and have similar problems with the touch screen). First save all personal data from your phone to removable media. Now press and hold the Volume Down button. Without releasing it, press and hold the Power button. Release both buttons when the splash screen appears. The menu that appears is controlled using the volume down and up buttons. Pressing the volume down button select “Restore original settings” (“Factory Reset”). To confirm your choice of action, press the Power key.

If the above methods did not help you, make sure that you followed all the steps correctly and sequentially, try each step again. Also remember that often the malfunction of the bottom buttons of HTC smartphones occurs due to a faulty display module or hardware problems of the device.

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

But, unfortunately, failure of touch buttons is not such a rare occurrence, and in terms of reliability they are in no way superior to 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 contamination of the screen by using a protective film, which will not only protect against unwanted substances sticking to it, but will 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 left underneath, otherwise some touch buttons will not be able to fully function.

Many phone owners decide to stick the film on themselves, but are subsequently forced to contact service specialists about this, since due to poorly pasted 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 may stop functioning as required if it gets too cold.

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, the touch panel, 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 the service center who have the 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 your operating system by turning your phone off and then on again.

This simple step usually eliminates occasional errors. If this does not happen, remember - perhaps you installed a new application or updated one of the already installed applications before the touch buttons failed. 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 do not have anti-virus protection, it is possible that the failure of the touch buttons is caused by the actions of a malicious program. Download a good antivirus and scan your phone, then ruthlessly delete all files that seem suspicious.

Reset

If none of the above measures work, you can only try the last remedy available to the average 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 so-called custom firmware on your phone, 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.