Why does the sensor not work on. The phone's sensor does not respond to touch - what to do. What to do if the screen works partially on a Redmi smartphone

& nbspIf the iPhone stopped responding to touch, then there are several repair options:

replace the entire module;

replace the touchscreen (for this you need to disassemble the model).

However, there are times when repairs, as such, are not required. Sometimes the sensor stops working as a result of a software glitch, or bad contact loop.

Contact may disappear after a fall, or as a result of poor-quality repairs at a service center. It is impossible to find out the exact cause of the breakdown without disassembling the phone, therefore, in the absence of the necessary skills, you should not deal with this problem on your own. Unless if the software fails, you can try to fix everything yourself by resetting the settings to the factory settings.

You need to reset first. Very often this allows you to solve the problem with the performance of the sensor and avoid going to the service. To reset the device to factory settings, connect it to your computer and perform a reset.

You can do it without connecting to a computer. To do this, press and hold the Power and Home keys. Keep the buttons pressed for 10-20 seconds. After that, the device will reboot. Before resetting, be sure to do backup your phone.

If the reset does not help, then you need to start disassembling. To do this, you need to stock up necessary tool including a star screwdriver, plastic spudgers for disassembling the case and a suction cup for the display. It's not difficult, watch the video on how to disassemble an iPhone.

It is necessary to remove the cover and check how well all the cables are connected. 3 loops come from the display module. One responsible for the sensor, second for display image and third comes from the "Home" button.

Sometimes, after a fall, the loop flies out of its socket, and without good contact, the sensor will not work. It is necessary to install the cable until it clicks and good contact should appear.

After checking the connection of the loop with motherboard check the performance of the sensor. If everything works, then you can safely use the phone, but be prepared for the fact that if you fall, the problem may recur. If it was not possible to restore the operability, then it is necessary to change the sensor.

It is best to repair your smartphone at a service center. With the necessary experience, you can repair your iPhone yourself. The easiest option for this is assembled.

In this case, you need to buy a new module the desired color, disassemble the smartphone and replace the damaged module with a new one. With such a repair, you do not have to worry about the further performance of the iPhone. The new model should work no worse than the new phone.

More complex repairs will be required when replacing only the sensor. In this case, you will have to re-glue the sensor with a complete disassembly of the module. At the same time, it is very easy to damage working elements - loops, display and safety glass which is easy to break by gluing the module.

In some cases, neither the replacement of the entire module, nor its repair, nor the firmware of the smartphone help, for example, if the motherboard or image controller is damaged.

In this case, you can repair the phone only by re-soldering the controller or replacing motherboard... It is better to make such repairs in a service center.

Before starting work, ask the wizard to carry out diagnostics. Only after this will the real reason for the touch screen problems be understood.

Tablet computers have become faithful companions for many people. They allow you to view email, work with documents, play games, listen to music and perform other actions, by analogy with an ordinary computer... An unexpected breakdown of the tablet literally unsettles, forcing users to look for the reasons for its breakdown. My tablet does not respond to touch - what should I do?

If your tablet is not responding to touch, it could mean anything:

The software has hung;
The screen itself is out of order;
Electronics broke.

There are many other reasons for touchscreen breakage as well. For example, some cheap Chinese tablets with resistive screens suffer from loss of sensitivity quite often. And if you happen to buy such a tablet, be prepared for any malfunctions, even if they go beyond the boundaries of logic.

So how do we restore the sensitivity of a resistive touchscreen? First you need to connect a mouse to the tablet and make sure that it moves. This means that the device is not frozen. Next, go to the screen settings and calibrate it - you will find the corresponding item in the settings.

The essence of calibration comes down to pressing the points indicated on the screen (it is best to tap with a stylus or any other not very sharp object). After completing the calibration, the tablet can be restored to work.

Calibration will not be possible if the display itself, which is responsible for the perception of touch, is out of order.

If the device still hangs, you will have to restart it - for this we hold down the power button or press the reset button with a needle (if there is one). After a reboot, the system should recover.... That did not happen? Still not responding to your screen? Then you will have to give the tablet to a repair shop, where specialists will take care of it.

Do not try to repair tablet PCs yourself without proper knowledge and tools. Even if you manage to disassemble the tablet, you may not see any traces of damage inside - it is better to entrust the repair to specialists.

Recovering tablets with capacitive screens

If your tablet's screen isn't responding to touch, it's likely that it just hangs. The device just needs to be rebooted by holding down the power button- after a while it will reboot, even without confirmation. If this did not help, you should figure it out, after which this trouble appeared.

For example, an unexpected loss of sensitivity can occur due to some software that was installed shortly before the breakdown. We can do the following:

Try to connect the mouse and remove the last software, then send the device to reboot;
Restart the tablet in safe mode when only system utilities, drivers and programs.

Removed the last installed programs and the screen is working again? This is possible when certain applications enter into conflicts in the system. To prevent the malfunction from reoccurring, do not install remote programs or try to find their analogues.

Please note that support for external input devices such as wired and wireless keyboards, mice, joysticks and gamepads are not available in all tablet PCs. Instructions for putting tablet PCs into safe mode you can find it on our website - we have already done a review on this issue.

If the tablet stops responding to touch, you can try to remove from the screen protective film... Some films, having a significant thickness, become an obstacle to the functioning of capacitive screens. The use of such films should be avoided despite the serious protection they provide to the display.

Does the tablet screen stop responding to touch after being hit or dropped off the table? Take the device to a repair shop to be examined by an experienced technician - an independent repair is not possible here.

Did you fill your tablet with water, juice, milk, or any other liquid? This is another reason to visit the service center - here the tablet will be washed, cleaned and returned to its former working capacity. The most exotic repair method is to turn off the tablet and wait a few hours. Oddly enough, but it sometimes helps.

It is possible that the fault is some kind of software malfunction or overheating of the electronics. If the manifestation of this malfunction is regular, try contacting a service center where professionals will take care of the tablet.

The last resort to count on the restoration of touchscreen functionality is full reset which can be done via Recovery Mode(we have already explored ways to enter this mode in our reviews).

Articles and Life Hacks

Most modern phones are sensor controlled. Information is displayed on them. The era of push-button monoblocks and clamshells has already passed.

In this regard, they come to the repairmen of mobile phones with the problem that the screen touch phone does not respond to touch. However, before going to the masters, you can try several actions yourself.

Causes of the problem

There can be many reasons. Let's describe the most common ones:

the phone's RAM is overloaded to such an extent that the smartphone does not have enough resources to process clicks;
the board is oxidized or heavily soiled, as a result of which pressing signals simply do not reach the processor;
damaged or loose cable;
the most serious and costly to repair is the display is broken / broken / flooded with liquids.

What can be done at home to restore working capacity

First of all, check the charge level and charge the phone at least up to 40%. Then clean the screen from contaminants. The next step is cleaning random access memory and stopping resource-intensive applications.

You should try to restart your mobile device. When the restart fails, we just pull out battery, we wait a couple of seconds and put it in place, after which we turn on the smartphone in the hope of success.

This is the very first thing to do. If this does not help, then look below.

Further actions are best done after you know exactly where and what is attached to the board in your phone. Read the forums, look for articles on the topic "Parsing ... the phone model at home."

We shoot back cover, be sure to take out the battery and carefully disassemble your device.
We put all the screws in a separate container, so that later we do not look for them somewhere on the floor.
We look where the train goes and look for damage. There is no damage - great, then we just disconnect the display from the board and reconnect it.
Since the device has already been disassembled, we will also wipe the contacts on the board with a cotton swab and alcohol. We put everything in place, twist it and turn it on.

Nothing helped? Now you definitely can't do without a wizard or a service center. We go to the workshop and describe in more detail the problems and all the actions that you performed with the phone. This can significantly speed up the repair time.

There are often cases when a problem is created with the wrong or incorrect work... In most cases, all faults can be divided into several categories:

the sensor does not work at any press;

wrong job touch screen - when you press some keys, others are triggered;

the sensor on the phone is buggy when you go outside;

delay when pressed, distortion on the screen;

replacement of colors.

You can fix the presented breakdowns yourself, without asking for help from specialized service centers. Regardless of the model or brand of the phone, using detailed instructions becomes possible solution almost any task.

Loss of screen functionality

There are many reasons why the touchscreen does not work in some places. Among the most common problems of the lack of response of the screen to pressing, experts call:

physical damage that caused damage to the touch screen;

temperature extremes, increased humidity coefficient, magnet action or static electricity can cause the bottom of the sensor to not work;

the fall mobile phone;

impact malware or applications due to which there is a decrease in the performance of the smartphone;

incorrect firmware, reboot or insufficient amount of operational or internal memory;

incorrect settings.

If the phone has completely stopped responding to touches, you should adhere to a certain algorithm of actions. First of all, the problem can be solved by restoring the phone to factory settings. If this helped to solve the problem, then most likely the failure is directly related to software, which is why interference is created for the operation of the sensor.

Physical damage to the sensor

Before using the services of specialized service centers, the best option would be to carry out a preliminary diagnosis of damage. Most likely, after the diagnostic test, the problem will not disappear anywhere, but due to this, it will be possible to identify non-working areas of the screen. To gain access to the tools, you will need to enter a specific USSD code. This code is different for each phone.

In TSP Dot mode, when you press touch screen small dots may appear on the mobile phone. Due to the special functionality, it becomes possible to determine the most affected part of the display with a touchscreen. Another reason for the breakdown may be associated with the fall of the device. In this situation, the digitizer cable is weakened and there is no reaction from the touch screen. In most cases, the problem is fixed quickly enough: if you lightly knock on each corner of the screen, then the breakdown can be solved in this way.

Other causes of faulty sensor status

If half of the touch screen is inoperative, the cause of the breakdown may be due to the partial separation of the touchscreen contacts and in accordance with the incorrect signal transmission. In this situation, you will need to carefully analyze the phone and evaluate the touchscreen contacts. This procedure should be carried out with special care, since there are many small parts at the heart of the device.

The functionality of the touchscreen may be lost if some parts fail. Hypothermia or overheating of the device can play a significant role. The latter malfunctions are resolved by restoring normal temperature conditions. Sensor repair is most often necessary when dirt or moisture gets inside the phone. After cleaning the contacts, you should carefully assemble the phone and check the performance of the screen.

While doing self repair touch screen, you will need to strictly adhere to a certain algorithm of actions. At the same time, one cannot do without the use of special equipment and high-quality materials. In particular, you will need to purchase various, including.

Good day, dear reader!

Today I will tell you a story from my life. It's not just a story, it's like that practical advice... It is not for nothing that this article is placed under the heading "Everyday matters."

I have several phones. Yesterday on one of them the touchscreen (or touch screen) "died" - a touch screen that completely replaces the physical keyboard.

As usual, he partially "died", but this was enough to completely paralyze all the work.

Light spot

Sensitivity has disappeared on the narrow strip on the right. The phone was turned off at night, and in the morning I tried to turn it on. This procedure is accompanied by a password entry. And I need this narrow strip on the right, since I'm using the number located there.

As a result, I could not even turn on the phone. As usual, calls started on service centers and answers: "Leave your phone number - we will call you back and check if we have such a touchscreen or not." As a rule, everyone promised to call "today or tomorrow." What should I do right now?

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

Which? I'll tell you now.

Where to get it

If the touchscreen is “covered with a copper basin” on your phone, you will need a piezoelectric element to “resurrect” it. Where can I get it? Of course, in a piezo lighter. But I don't have a piezo lighter at home: with a handle, on a wire or on a battery - there is none.

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

In general, I need a piezoelectric element, but no gas is needed. I turned off the gas tap. Turned off my phone. I brought it to the piezoelectric element with the screen: the place in which my touchscreen "died". I switched on the piezoelectric element and moved the screen for a few seconds so that the spark covered the “dead” area of the touchscreen.

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

The effect lasts ...

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

Of course, it is imperative to replace the touchscreen, but reanimation from a piezoelectric element as a momentary method is just great!

If my solution will help you, I will only be glad! Have you had a sudden "death" of the touchscreen at the most inopportune time? How did you solve this problem?