A small part of the screen on the phone does not work. The sensor on the phone does not work - what to do? Touch phone repair

Touchscreen mobile phones have recently become one of the most popular phone models, because they are easy to use, and thanks to new technologies, you can significantly increase the size of the screen without increasing the dimensions of the phone. A mobile phone with a touch screen requires careful and careful handling, because any impacts or damage can damage the sensor, causing the phone to stop responding to touch.

If part of the touch screen does not work, you must definitely find out the cause of the failure. Very often, due to impacts and damage, cracks appear on the touchscreen, which can lead to some area of ​​the screen being damaged. In such a case, only replacing the phone's touch screen can help solve this problem. You need to find out which part of the touchscreen is not working. The problem may also be in the phone's cable. When dropped or bumped, it can move away, so the screen contacts are weakly responsive to touch. This is the reason why the phone does not always respond to presses.

If half of the touch screen does not work, it can be said that the touch screen contacts that connect to the main board of the phone have become loose and the signal is not being transmitted correctly. This is why one half of the screen can respond adequately to touches, while the other half only works when you press the touchscreen hard enough. In this case, you need to carefully disassemble the phone and look at the touchscreen contacts. You need to do everything very carefully, since the device contains many small parts, if you lose them you will have to go to a phone repair shop.

The phone's touchscreen may not work because some parts have failed, but such cases are quite rare, since almost always the problem lies in the phone's touchscreen itself. There are also cases when the phone’s touch screen does not work after hypothermia. This happens especially often in winter. There is no need to panic, you just need to wait a little until the phone warms up. After this, the screen will work properly again.

Disassembling the phone is appropriate if dirt or moisture gets into the middle; this can also cause failure of certain parts of the screen. After everything is removed, you need to carefully reassemble the phone - the screen should work correctly. In any case, you should definitely consult with a specialist in this field.

Comments

All of the vertical apps don't work for me and I can never play or download games.

Here's a little about the touchscreen, maybe it will help:

There was a 10mm horizontal strip. I just did it like in the video. I didn’t believe it would work, but kicker #8212 works. Thanks a lot. By the way, a piezo lighter was enough. It’s not clear, but for how long?

Half of the screen doesn't work, the reason is that it broke, thank you very much, I'll just change the glass

What to do if one part of the tablet does not work

Occasionally part of the screen works

The tablet fell. A crack appeared on the screen, now half of the screen does not work completely (((

the screen is not broken, the small horizontal bar in the center of the screen does not work

This is vital, and also its namesake.

Found a solution to the problem?

Ahaha, two problems with the same problem)))

After the tablet hit, a crack appeared on the inner glass. The tablet turns on but the screen is black, only the crack lights up. Please tell me the tablet can be repaired. How to save him?

No, you don’t need to send your tablet or phone for repair if the screen is leaking, because they will replace the glass and nothing will change, and it turns out that you just wasted your money.)

The phone is unbroken, the upper horizontal part on the sensor does not work

The entire phone does not work, the upper horizontal part on the sensor

The phone didn’t fall, the screen just stopped working, the curtain only opens and closes, the buttons rarely work, what can I do?

My screen doesn’t work in the middle and sometimes it doesn’t work in other places, it’s like it’s moving!

HALF OF THE SCREEN IS NOT WORKING WHAT TO DO HELP PLEASE

There is one small crack on the screen. One part works (top) and the other does not. what to do??

Broaaaan the upper part of the sensor does not work

Why is it on the top of the phone (Vertex for 5 k(((() the top doesn’t hurt but the bottom, great!

The sensor was replaced, the touch below didn’t work, and still doesn’t work

I have a phone Umi London trashed the top part but the part below doesn’t work well before robotla so trashed

Hello, help me, my Asus Zenfon 2 has a problem with the upper part of the screen not working stably? Factory settings didn't help, could the cable come loose?

What is the name of the house to go back to the menu?!

Phone LENOVO S720 touchscreen partially does not work. There are greenish spots in places where #8212 does not work. what is the reason?

Tell me #8230I play on a tablet and often in 3D games, the movement and skill controls do not match the placement of buttons on the screen#8230how to solve the problem?

The bottom of the screen does not work, you have to turn the phone over every time. no cracks

The more you paid for your new phone, the greater the fear of waiting for problems with its operation. Unfortunately, sometimes we are not even aware of the sources of problems in technology for various reasons. In most cases, this relates to ignorance of certain features of use, as well as a lack of respect for the technology. For example, after replacing the touchscreen, part of the screen does not work, and you were confident in solving the problem using this method. It is obvious that it will not be possible to solve it if the attitude towards technology remains the same. Therefore, we will look at all possible reasons why part of the touch screen does not work.

Part of the screen on the phone does not work

So, experts almost always advise using the method of elimination. The fact is that part of the screen on an iPhone sometimes does not work due to the simplest little things, which can be easily eliminated, and sometimes you have to completely change parts of the equipment.

Part of the touch screen on your phone is probably not working due to one of the following reasons:

1. Sometimes part of the touch screen does not work due to simple memory overload. In our pursuit of greater opportunities and the desire to store as much information as possible, we do not notice how we simply overload our equipment. As a result, there are no more resources left for the touchscreen. And sometimes the equipment system fails, then you have to resort to the so-called deep reboot.
2. Part of the screen does not work after careless handling. When was the last time you cleaned your screen? When traces of dirt and greasy stains accumulate on it, contact becomes worse and sensitivity decreases.
3. The technique cannot tolerate temperature changes. This is one of the reasons why it is not recommended to carry your phone in your jacket pocket in winter. By the way, such changes can lead to condensation, which also leads to problems. The contacts begin to oxidize and the sensor starts acting up. In such a situation, it is enough to wipe the contacts with a cotton swab dipped in alcohol.
4. In a cramped bus or just in sudden movement, you won’t even notice how you damage your phone. Part of the screen on the phone does not work after the smallest cracks appear.
5. It is likely that part of the touchscreen on your phone is not working after a slight shift or partial peeling of the touchscreen itself. Here you can use the heating method with a hairdryer. The fact is that the sensor is fixed with a small layer of glue, which can be heated and set everything in place.

Unlike their ancestors, modern smartphones are controlled using a touchscreen and several auxiliary buttons. Therefore, it is difficult to imagine a situation worse than the one when the screen on the phone does not work.

This manifests itself in its complete inoperability, loss of some important functions, or random triggering of the sensor. It is especially unpleasant when a black phone screen catches the user at the most inopportune time.

There are several reasons why your phone has a black screen:

• the device fell;
• the microcircuit has failed;
• the connecting cable flew out;
• moisture has entered the device.

It is almost impossible to immediately understand why the phone screen does not work. The only exceptions are obvious damage that leads to the appearance of cracks on the display or deformation of the case. But first things first.

The phone fell

To damage the display, just one fall of the gadget from a small height is enough. The greatest risk is a collision with asphalt or rocky soil, when the impact falls on a certain part of the protective glass.

If after this, the user’s display no longer works, the glass on the device could have cracked, resulting in damage to the touchscreen along with the display, or the cable could have popped out. It would be reasonable to take the gadget to a specialist for diagnosis, making sure to note that you dropped it.

Screen control chip failure

Another extremely common occurrence is the failure of the graphics chip. The display stops receiving information from the device and no longer shows images. It is extremely difficult to identify this problem at home. In this case, all components must be completely replaced. This operation will not be possible if the device is smashed to pieces.

Worn or disconnected cable

Compared to most hardware components, the cable can be replaced without additional re-soldering of the device board. Usually, solving such a problem takes several hours, even when the cable is completely broken.

It is possible that the display no longer lights up, not because of a broken cable, but because it was disconnected from the main board as a result of a strong impact. Repair work will take only a few minutes, the cost will vary depending on the complexity of the gadget’s internal structure.

Moisture and liquid getting into the phone case

One of the worst scenarios for why the screen won't light up is if the hardware comes into contact with moisture. Whether it's steam or a few drops of liquid, they can cause destruction of board contacts, cause short circuits, or manifest themselves in a specific way when the sensor does not respond to your touch or divide the image into several zones.

The solution to this problem will depend on the amount of oxide formed. If you delay repairs, thorough cleaning may not be enough and you will have to resort to replacing damaged modules.

Oxide Elimination

It is possible to fight oxide on your own. Immediately after moisture gets into the gadget, it is recommended to completely disassemble the device and check it for the presence of electromechanical corrosion. The affected area is treated with 96% medical alcohol; for the best effect, use a toothbrush soaked in alcohol and dry the board.

It’s worth warning right away that such personal intervention can only worsen the condition of the smartphone. It is better to give the device to the specialists, where they will treat it with a water-repellent solution and provide high-quality washing using an ultrasonic bath. Dry it in a heating cabinet at a certain temperature. It is often impossible to say for sure whether the device can be saved due to extensive damage to the hardware of the board.

Advantages of specialized service centers

The obvious advantage is a complete diagnosis of the device followed by replacement of failed parts. Unlike carrying out these manipulations at home, the risk that the master will touch an important unit through negligence is minimized.

Additionally, you will receive a warranty for the entire device, and not for an individual part that had to be replaced. As replacement parts, only original spare parts are used, without using low-quality Chinese analogues.

Rather than try to fix the problem yourself, it is better to immediately contact specialists who have experience in restoring mobile devices and the necessary tools for this. This is especially true for those who need an urgent screen replacement.

Conclusion

The display of a mobile device is very fragile and can be damaged not only due to a strong impact, but also due to moisture getting into it. It becomes almost impossible to save your device without using special tools, and in the vast majority of cases, the intervention of an inexperienced user leads to complete damage to the hardware board or individual modules.

Video

What should you do if your phone falls and part of the screen does not work, although everything looks intact on the outside? Let's look at an example of repair on the MEIZU M2 mini phone model. A possible reason is that a microcrack has formed on the display (the owner of the phone immediately said “it fell, now the sensor doesn’t work”). To confirm your guess, you need to diagnose the display module by disassembling the device and checking everything thoroughly.

In the photo below we show that a small part of the screen does not respond to finger touch.

Let's start repairing a non-working display

1. The first thing you need to do is disassemble the phone. To do this, we take out the SIM holder and remove the back cover using a special plastic tool.

2. Carefully open the back of the phone (you must use a plastic tool so as not to scratch the phone), disconnect all cables.

3. Then it is necessary to heat the device using special equipment so that the glue becomes soft and elastic and we can easily remove the display module. We set the temperature from 90 to 100 degrees.

4. Apply glue and fasten with special holders so that the components fit together as tightly as possible. Leave in this position for 30 minutes.

5. Then we check the operation of the phone, assemble it and give it to the happy client.

The result of our work: we eliminated the cause of the bottom part of the screen on the phone not working.

And how much does it cost?

The cost of the work was 2,500 rubles, and half a day of time was spent by us on troubleshooting. Agree, it’s not expensive compared to buying a new mobile phone.

To find out the cost of repairing a non-working display after your device model has fallen, call us or write a letter. We provide repair services for phones of any manufacturer and any level of complexity; we have both talented craftsmen and the necessary professional equipment for this. (3500)

Phone screen?

Electronic device components may be damaged if used carelessly. If part of the touch screen on your phone is not working, it could be due to either operating temperature or mechanical damage.

Repairing a smartphone or tablet with an insensitive touch screen will help solve serious problems. Sometimes simple cleaning combined with disassembling the case helps. However, if after all the user's actions the device does not turn on, it must be transferred to a service and this may result in additional costs.

Causes of the fault

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There are the following reasons why part of the screen does not work:

1. Oxidation of contacts due to condensation. Moisture that has entered the device may cause to complete or partial loss of performance. Oxidized contacts stop responding to processor commands and transfer them to the screen. To eliminate the consequences of liquid ingress, it is necessary to disassemble the device and clean the internal components. To do this, you can use alcohol applied to a cotton swab or swab. After this procedure, the phone should turn on as usual.
2. Cracks on the surface of the screen. Due to microdamage to the sensor, it stops responding to pressure. There are such damages due to falling or impacts on the screen. You can identify cracks in the display by carefully examining its surface. If part touch screen covered with cracks, you can restore functionality by replacing the device's touch screen.
3. Disconnect the touch screen contacts due to misalignment. This usually doesn't work on the bottom or top half of the screen. To diagnose contact misalignment, you need to disassemble the device and check whether the visual order of symmetry of the components is broken. If you see misaligned contacts, you can try to correct them with tweezers. In addition, some elements are attached with adhesive, which can melt at high temperatures and displace the contact. In order for the top to return to its place, you need to heat the holder with a hairdryer and return the component to its original position.

What to do if any sensory screen not working?

Part of the touch screen is not working? There is an exit! using a piezoelectric element from a lighter that we are restoring.

The sensor does not work at some points on the PRESTIGIO MULTIPAD tablet

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Does not work at some points tablet PRESTIGIO MULTIPAD Electronics repair in Taganrog, etc.

Features of electronic devices

In addition to these failures, electronic devices may begin to fail due to the internal architecture. Limiting the size of components affects power dissipation if the tablet screen does not respond to touch - this may be due to the device being overloaded with a large number of resource-intensive applications. To prevent this, you need to start the task manager. Find out what's hogging your CPU and disable unnecessary apps.

Electronic devices have increased the sensitivity of screen sensors. The situation when screen tablet or phone does not work, may be due to simple contamination. The attachment of grease and dust to the surface causes the tablet to become unresponsive to touch.

If the screen does not work on the screen, the best solution is to send it to a diagnostic service center. Most models come with a very long warranty, allowing you to replace your device at no cost, no defects, no refunds. If the deal isn't guaranteed, you can probably just buy a new gadget and worry about it later.