What to do if the phone screen is not working

Calibrating the display with third-party programs

The Play Market has applications that can be used to calibrate the touchscreen to improve its performance. It will take too long to review all applications, so we will focus on one of them that received the highest score from users.

4 Ways to Fix iPhone Touch Screen not Working | iPhone Screen not Responding to Touch |iPhone Repair

5 Programmatic Ways to Fix Problems

Broken Android Data Extraction

iSkysoft has developed a program that allows you to save or restore the necessary information from broken phones. To do this, install the Android Data Extraction application on your computer and follow the instructions.

TSP Dot Mode and TSP Grid Mode Tests

To carry out this testing, you need to get into the engineering menu. To do this, dial the service code. It can be different for different manufacturers and phone models, try these options:

  • ###
  • ###
  • #
  • TSP Dot Mode. allows you to check the screen in “dot mode”. A cross should remain in the place where you touch the display.
  • TSP Grid Mode. testing takes place in “grid mode”. The screen is split into several rectangular parts. When a specific rectangle reacts to a touch, its color will change.

This testing will tell you which part of the screen the problem appeared on.

The developers do not advise trying to repair the phone on your own, since this requires certain knowledge and experience.

10 ways to make your sensor work again

If the smartphone screen has stopped working adequately, you can try to solve the problem yourself. First, you should find out what caused the breakdown and what are the options for fixing the problem.

  • Why the touchscreen or touch buttons may not work
  • 5 ways to fix problems programmatically
  • Reboot
  • Removing the memory card and SIM card
  • Through safe mode
  • Hard reset
  • Calibrating the display with third-party programs
  • TouchScreenRepair
  • How to fix if your device is physically damaged
  • TSP Dot Mode and TSP Grid Mode Tests
  • “Tapping” around the perimeter of the screen
  • Dry after getting wet
  • Check loops
  • Sensor replacement
  • How to save data when the display is not working
  • Broken Android Data Extraction
  • Instructions

How to fix if your device is physically damaged

Next, we will analyze how to test the screen and restore it.

Sensor replacement

If your smartphone does not use OGS technology, you can try replacing the sensor yourself. To do this, you will need the following tools and accessories:

  • a set of small curly screwdrivers (available for sale specifically for smartphones);
  • pick, spatula, plastic card;
  • silicone suction cup with ring or loop;
  • regular hair dryer;
  • glue B-7000 or similar;
  • thin rubber gloves.
  • Disassemble your smartphone.
  • Warm up the display with a hairdryer around the entire perimeter to a temperature of about 70-80 degrees. Pick up the heated screen with a suction cup, and pulling it away from the case.
  • Install a new sensor. Prepare it by removing the protective film from the inside. Apply a thin layer of glue over the entire seating surface. Replace the sensor and press down gently. You can put a small and flat object weighing no more than 300 g on top of the screen for better adhesion.
  • You can collect the phone. Connect the loops, fix the internal threaded connections and install the external housing parts.

If you are not sure that you can handle the sensor replacement yourself, take your phone to a service center. If you repair the device yourself, the smartphone warranty expires.

Display (screen) not working in Samsung phone

Remember, if the screen on your Samsung phone is not working, then it’s time to contact a service center. If the mobile body looks completely intact, there are no slightest cracks, there are no smudges on the display, then the reasons may be as follows:

Sometimes the display on a Samsung phone stops working due to the fact that the screen itself, that is, the matrix, is damaged. Most modern smartphones from Samsung (A-series: Galaxy A3, A5, A7; S-series: Galaxy S5, S6, S7, S8; also some J-series models) use amoled matrices, one of the disadvantages of which is fragility. If they are damaged, as a rule, outwardly there may be no signs, since small cracks are under the glass and can only be viewed from a certain angle. The outer glass very often remains completely intact, the phone boots up, makes sounds when touched, you can even pick up the phone from memory for an incoming call, but there is no image or backlight, only the touch buttons at the bottom of the screen next to the home button are lit. Do not try to make repairs yourself: not only is it difficult, but you can also aggravate the breakdown by damaging the loop of the touch buttons, the back glass cover, etc. Remember, our service center will solve your problem in a matter of hours: we always have the right original parts. If even you have the slightest doubt, then do not risk it: immediately take the phone to the masters, because only they will carry out a high-quality replacement.

Samsung Display Repair Prices

Model Glass replacement (rub.) Display replacement (rub.)
Galaxy A5 2017 (A520f) 3500 from 5500
Galaxy A7 2017 (A720f) 3500 from 5500
Galaxy A6 3500 from 5000
Galaxy A6 3500 from 5500
Galaxy A7 3500 from 5500
Galaxy A8 3500 from 6000
Galaxy A8 3500 from 6500
Galaxy A9 4500 from 6500
Galaxy A10 3500 from 5000
Galaxy A20 3500 from 5000
Galaxy A30 3500 from 5500
Galaxy A40 3500 from 6000
Galaxy A50 3500 from 6000
Galaxy A70 4500 from 7500
Galaxy A80 5500 from 7500
Galaxy S6 Edge 5500 from 6500
Galaxy S7 Edge 6500 from 11000
Galaxy S8 7500 from 11500
Galaxy S8 8500 from 12500
Galaxy Note 8 9000 from 13500
Galaxy S9 9000 from 13500
Galaxy S9 10000 from 14500
Galaxy Note 9 9500 from 13500
Galaxy S10e 9500 from 14000
Galaxy S10 10500 from 16000
Galaxy S10 11000 from 17000
READ  How to remove minor scratches from your phone screen

Often a black screen appears in a Samsung phone: if the microcircuit that is responsible for controlling the screen, or some components in its strapping fail. It is quite difficult to replace them with improvised tools.

In rare cases (one in a thousand), the display does not turn on in a Samsung phone due to the fact that it has recently “landed” on a hard surface and the connector has come off the main PCB. In our center, it can be done in the shortest possible time or even in the presence of the client.

Of course, there may be a completely different kind of problem that can only be identified after a thorough diagnosis.

Moisture and liquid penetration into the phone case

Everyone knows from an early age that there is no place for water in electronics. The ingress of moisture or liquid into the phone contributes to the destruction of the contact board, short circuits and other critical phenomena that interfere with the operation of the device.

Destruction of contacts on the board may require both routine cleaning and replacement of many components. If water gets into the device, it is recommended to immediately contact the service center for assistance. Water entering the mobile phone screen can cause characteristic streaks and stains, which can be corrected by replacing the screen or modules.

First steps and theory

The development of the mobile industry has taken the direction of increasing the size of the display and minimizing the number of mechanical keys. The screen is the main way to control the device, and damage to it can turn your phone into a useless pile of metal. There are many options for disrupting the inoperability of the screen: from the appearance of small spots and defects, to its complete inoperability.

Each breakdown is unique and needs separate consideration. You must be sure of the reason for the inoperability, otherwise dishonest service workers can cash in on you. First of all, you need to make sure that everything is in order with the software part of your device. This requires:

Defective pixels. active dots on the screen that do not change color. The appearance of dead pixels is due to the breakdown of the TFT transistor, which is attached to each pixel on the screen of your phone. It has been proven that the appearance of one dead pixel contributes to their further spread across the screen, but this is not always the case. There is a permissible norm for the factory defect of the screen, which allows the presence of “blind spots” on the device screen. You can diagnose this problem yourself, but for a fix it is better to contact the service center.

The smartphone screen does not respond to any touch. what to do?

If the touchscreen has no physical damage but suddenly stops responding to your touch, it could be caused by a software problem. Here are the main and most effective ways to fix the problems that have arisen:

phone, screen, working

Before delving into any other troubleshooting procedures, restart your phone or tablet to fix software errors that might prevent your device from working.

Reboot any Android touchscreen device as follows:

Press and hold the power button until the screen turns black.

After 1 minute, press the power button again to turn on the device.

In many cases, the phone will respond normally to touch after a reboot.

Sometimes a faulty memory card or SIM card is to blame. Consequently:

  • Turn off the device (hold the power button until it turns off completely if the screen is completely unresponsive).
  • Remove the back cover of the device and battery, remove the memory card and SIM card. For devices with non-removable batteries, simply remove the cards from the appropriate slots.
  • Restart your device and check if the problem is gone.
  • Put your device into safe mode
  • Corrupted or extraneous apps can also cause a touchscreen issue on your phone or tablet.

    In safe mode, all downloaded third-party applications will be disabled, i.e. only standard applications will be loaded that are necessary for the operation of the operating system and maintain the minimum functionality. Therefore, if the display works well in safe mode, you should uninstall some applications, especially those that were installed very recently, before the problem with the touch screen.

    • Turn off your Android device.
    • Next. long press the power button to reboot the device.
    • When you see the phone brand logo, release the power button, press and hold the volume down button.
    • Release the volume down button when the device boots up with the safe mode indicator in the lower left corner.

    Attention! If your phone sensor is not responding to touch, lags behind, slows down or responds incorrectly, you can also try using this method.

    When you see a message about restarting your device in safe mode, click OK. Safe Mode is enabled. If no problems are observed, start uninstalling third-party applications by periodically rebooting the device and checking the smartphone’s operation in normal mode.

    If the touchscreen is completely unresponsive, it may need to be restored to factory settings.

    This procedure will erase all data on your device, including downloaded apps, photos, messages, contacts, etc. WITHOUT POSSIBILITY OF RECOVERY. Therefore, use this method as your very last chance. Back up your Google account ahead of time.

    The steps to enter recovery mode are different for many Android models. In other articles, we have already mentioned how to do this, so we will not repeat ourselves and proceed to the next method.

  • Calibrating the touch screen using the app
  • Type “touch screen calibration” in the Play Store search bar and the system will give you quite a few results.

    Read the reviews carefully before downloading any of the applications, give preference to verified authors.

    Phone sensor does not respond to touch. device “first aid” guide

    Very often, the touch screen on a smartphone starts working incorrectly, incorrectly, or simply does not respond to pressing. As a rule, all problems in this case can be divided into 3 groups:

    • The touchscreen has stopped working on the smartphone and is completely unresponsive to any taps.
    • The touch screen does not work properly: when you press “a” you get “b”.
  • Delay when clicking, braking, screen distortion, color swap.
  • Let’s try to figure out the reasons for such breakdowns and try to eliminate them without resorting to specialized services. Regardless of which model or brand of phone you are facing a problem, this guide will help you solve almost any problem.

    Why Touch Phone Screen Doesn’t Work?

    The touchscreen display on any phone can stop working for many reasons. Here are the most common problems that make your smartphone screen unresponsive to touch:

      Physical damage resulting in damage to the touch screen. High temperature, cold, humidity, magnetism, or static electricity can damage the touchscreen on your Android phone.

  • Malicious programs or applications that reduce performance that affect the phone’s system in such a way that the sensor does not respond to touch. (To avoid this, it is recommended to install an antivirus)
  • Android system crash after firmware update, incorrect reboot, insufficient RAM or internal memory.
  • Invalid settings.
  • A “factory reset” (resetting the phone state to factory settings) will help restore the phone to its default settings and eliminate most of the above problems. If the touchscreen just stops working for no clear reason, it is probably caused by a software issue. How to fix a physically damaged touchscreen. later in the article.

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    Physically damaged touchscreen: how to fix it?

    If your phone or tablet has been hit, dropped, or otherwise damaged, the sensor will most likely stop working 90% of the time. Do not rush to run to the service center! Before replacing a new display, try these free tips first:

      Preliminary diagnosis of damage

    What if the touchscreen does not work after a fall? A diagnostic test won’t fix the problem, of course, but it helps determine which areas of the screen are truly unresponsive. To access the diagnostic tool, you need to enter a specific USSD code in the dialing line of the phone number.

    All codes are different for Android devices of different manufacturers, models, OS versions. Here are some tested codes that are commonly used (we DO NOT write the “-” after the “#”):

    #. most Android smartphones, especially Samsung;

    # # #. smartphones of the Sony Xperia series;

    For example, here’s how the test is performed on a Samsung Galaxy S4, Android 4.0:

  • Open the phone dial.
  • Enter # to enter the diagnostic tool menu.
  • Select TSP Dot Mode or TSP Grid Mode which are used for touch screen testing.
  • TSP Dot Mode will show small dots when you tap on the screen, while TSP Grid Mode allows you to test every area of ​​the screen in a grid overlay. Using both of these modes, you can determine which part of the display is most affected.

    Touch screen not working / touch problem / unresponsive touch screen. easy solution / fix

    If the device is dropped, the digitizer cable may be loose (detached) and the touchscreen may not respond. This can be fixed quite easily by tapping lightly on each corner of the touchscreen several times. In 50% of cases, this method helps.

    What to do if the phone display does not work?

    Phone screen not working? Action is urgently needed. The main thing is not to run the problem. You can carry out the initial diagnostics yourself. To do this, you just need to call our consultant and together we will figure out what the problem is. But often it is not possible to determine the breakdown from a distance. Therefore, it is best to bring your mobile phone to our service center and we will carry out a free diagnosis. And this is already the key to a successful repair.

    If the phone display does not work, this happens, as a rule, for several reasons. First of all, examine the display. Are there any cracks, scratches or smudges on it? If everything is in order here, then the reason is as follows:

    Why the screen on the phone does not work?

    in 40% of cases, the screen on the phone does not work if the screen itself is damaged. You can resume work only after replacing the component. We have a huge spare parts warehouse. You can purchase any part here and try to make a replacement yourself. But we do not recommend doing this, as this is a difficult task. Our masters will do everything quickly and efficiently, after which they will issue a guarantee for the entire device;

    30% of the screen control chip is faulty. If it fails, then only the replacement of the component will help. You can hardly do it on your own. Our craftsmen have vast experience and will always be happy to help you;

    the phone fell and why the screen does not work? In 20% of cases, the screen suffers from mechanical damage. Impact could cause the display to detach from the printed circuit board. Then you just need to insert the cable back. This is often in the presence of the client and does not take much time.

    in 10% of cases there may be other problems, they can be identified only after diagnosis.

    and more users prefer mobile devices with a touch screen. It is quite easy to operate. But it is not so difficult to disable it. Why is the touchscreen phone screen not working? As a rule, it breaks down from negative mechanical influences. If the touchscreen does not work, then only replacement will help in this case. We strongly advise against doing this at home. Since the execution of such a complex work is within the power of only qualified craftsmen. It happens when the floor of the screen has stopped and does not work. Part of the touch screen does not work when sensitivity is lost in a specific area. In any case, if the touchscreen does not work, you should not repair it yourself.

    It is not uncommon for the screen backlight to not work. If the display backlight disappears, this means that the problem must be looked for in the backlight circuit. As a rule, the phone screen does not light up if moisture has entered the device. Also, the reason that the phone screen went out and goes out may be the display itself, and then it will have to be replaced.

    In any case, whatever problem you face, please contact our service center for help. We employ only highly qualified specialists who will cope with any problem quickly, efficiently and at an affordable price.

    The young man accidentally dropped his cell phone on the tile, after which it turned blue and did not react anymore. In our service center, they made a diagnosis and found it. the display control microcircuit is damaged, it was replaced within 2 hours. Then they tested and gave the client a guarantee for the entire device.

    We have:

    Stock! Until the end of the month, for any repair, ultrasonic cleaning is free.

    The best conditions of service only in our service!

    What to do if the phone is broken and the sensor does not work? Why is broken glass dangerous? Official service centers

    Even the toughest tempered glass screen can crack. The user needs to know what to do with a broken phone. Using a broken smartphone can aggravate the situation or make repairs impossible. What to do with a broken phone? In order not to turn your smartphone into a “brick”, read the procedure for a breakdown.

    What is the danger of broken glass

    Can I use a broken phone? Many owners of broken phones do not seek repair for a long time. However, because of this, the gadget often fails and cannot be repaired. A broken phone can fail at any time. It is dangerous for the owner, you can cut yourself.

    What should be done in the service

    If the smartphone has a modular display, it is completely changed. Less often, the touchscreen and the matrix are not glued together. However, it is better to do the whole replacement, because the screen wears out over time. For example, if due to damaged glass the sensor began to work worse, but the picture on the broken phone screen looks the same, this does not mean that all the pixels are working. Damage to 1 point is not noticeable to the eye, but later the matrix begins to collapse, due to which the picture gradually disappears. If the display deteriorates after replacing the sensor, the unit will have to be replaced completely.

    READ  How to remove a circle on the phone screen

    The screen will stop responding to taps

    Broken phone screen may stop working. Since the sensor is always installed on top, it is he who suffers first. The module will not respond to touch if damaged. This can only be fixed by replacing it. If the glass on the phone is broken, the sensor may be triggered randomly. Long-term use of such a smartphone will lead to wear of parts, so instead of replacing the display, you will have to buy a new phone.

    How to fix it yourself

    This can only be done as a last resort. If the module is installed incorrectly or the case is not carefully disassembled, the microcircuits can be damaged. Then not only will the repair be more difficult, but the cost of the parts will also be higher. When ordering a module, it is better to choose native parts. If you install low-quality hardware, you can provoke overheating, due to which all the insides of the smartphone suffer.

    Sometimes a part for models produced with a difference in a year is named almost the same. However, a difference of even 1 character may mean incompatibility with a smartphone. Therefore, make sure the selected module is suitable.

    Complex technical devices cannot be returned. In case of an error, the purchase will not be returned.

    What to do if the screen and sensor are not working

    You need to contact the Xiaomi service center. It will not work to fix the sensor breakage by flashing Android or other manipulations. Trying to fix broken glass on your phone yourself can cause serious damage.

    Hard reset

    This is a full factory reset of the device.

    • go to the “Settings” section;
    • select “Restore, reset”;
    • find “Factory data reset”.

    Before you reset your phone to factory settings, be sure to back up any important data stored on your device.

    Display replacement

    We have considered the simplest and most budgetary faults. If the reason for the breakdown is the screen control board, or the display itself is to be replaced, you need to think about the advisability of such a repair, since its cost is often comparable to the cost of the smartphone itself. Judging by the numerous videos, the process of peeling off the touchscreen from the glass for subsequent replacement does not seem difficult and it may seem that everyone can do it. But the statistics of service centers suggest the opposite. too many new faults arise after home repairs.

    If simple measures to restore the smartphone screen did not give a positive result, in order to avoid additional costs, it is recommended to contact a specialized service.

    With the advent of touchscreen smartphones, display failure has become a fairly common case. Depending on the cause of the breakdown, we can eliminate it ourselves or contact the service. Going to a specialist is usually the last resort. In this article, you will learn what you can do if your phone goes black, but the phone itself works.

    Check loops

    The problem with the loop can be determined without even disassembling the phone. Sensor malfunctions are one of the signs of such a problem. Pay attention to the following signs:

    • the smartphone began to “slow down” during operation;
    • the device turns off when you release the lock;
    • camera malfunctions.

    If, in addition to the problems with the sensor, the above appeared, then there is definitely a problem with the loop. But it’s not worth repairing it yourself, since this requires a good understanding of the smartphone device.


    If the sensor does not work partially, download the Rebooter app to help you quickly reboot your device. If the sensor is completely unresponsive, and the smartphone has a removable battery, just remove the battery for a couple of minutes.

    Devices that have a non-removable battery installed should be treated slightly differently.

    Owners of Xiaomi, Meizu or Digma devices can hold the on / off button for 20 seconds or longer and the smartphone will restart or shut down. If you have a Samsung or Sony, press and hold the Power / Lock and Volume buttons at the same time for 7-10 seconds. If that doesn’t work the first time, try again, but hold down the buttons longer. Other brands with a built-in battery should also try the above options.

    If pressing the buttons did not give any result, wait until the battery is completely discharged and take the device for repair.

    The display does not turn on, but the phone works

    In such cases, the smartphone can even receive incoming calls. This malfunction also occurs for many reasons, but it is unlikely that it will be possible to eliminate it at home on your own. The fact is that such symptoms indicate serious and deep problems.

    One of the possible reasons is problems with the display cable. The ribbon cable is a flexible strip with conductive paths that connect the display to the screen control chip. Sometimes, due to a fall or shock, the cable simply disconnects. in this case, it is enough to put it back in place. Often moisture or dirt gets under the loop contacts. cleaning the contacts can solve this problem. If the cable is damaged, then it must be replaced.

    Sensor replacement

    If your smartphone does not use OGS technology, you can try replacing the sensor yourself. To do this, you will need the following tools and accessories:

    • a set of small curly screwdrivers (available for sale specifically for smartphones);
    • pick, spatula, plastic card;
    • silicone suction cup with ring or loop;
    • regular hair dryer;
    • glue B-7000 or similar;
    • thin rubber gloves.
    • Disassemble your smartphone.
    • Warm up the display with a hairdryer around the entire perimeter to a temperature of about 70-80 degrees. Pick up the heated screen with a suction cup, and pulling it away from the case.
    • Install a new sensor. Prepare it by removing the protective film from the inside. Apply a thin layer of glue over the entire seating surface. Replace the sensor and press down gently. You can put a small and flat object weighing no more than 300 g on top of the screen for better adhesion.
    • You can collect the phone. Connect the loops, fix the internal threaded connections and install the external housing parts.

    If you are not sure that you can handle the sensor replacement yourself, take your phone to a service center. If you repair the device yourself, the smartphone warranty expires.

    Through safe mode

    Disconnect the device completely. Then press the power button, and do not release it until the smartphone logo appears on the screen. Then release and press the volume down button. Release it when the device boots up, and “Safe mode” appears on the bottom left of the screen.

    If in safe mode no problems with the sensor are detected, then the matter is in one of the applications that must be removed or updated to the latest version.

    How to fix if your device is physically damaged

    Next, we will analyze how to test the screen and restore it.

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