Samsung smudge appeared on the phone screen

What to do to remove the yellow spot on the smartphone display

Try to fix the problem yourself. Technical glue often appears as yellow spots on the phone screen, which is used to fix the internal elements. You can get rid of the stain by cooling the place of its appearance. You can do it like this: wrap your smartphone with any cloth to prevent the case from getting wet. And put a piece of ice on the spot for a few minutes.

In the event that the reason is software, you will be able to solve this problem by resetting the settings to the factory settings. You can find a description of this process on the website of your device manufacturer. If you have Honor, read this manual.

The main reasons for the appearance of yellow spots on the phone screen

The touch screen of a smartphone can take on different colors in the event of a malfunction: blue, black, gray, white, and even the color of a rainbow. But it turns yellow in a situation if the matrix has been exposed to moisture penetration. Touchscreen phones are made up of several layers: thin plastic, pixels shaped like little bulbs, and a device called an inverter.

Their composition may vary, since there are so many types of touch screens. When water gets into LEDs or light bulbs, they can stick together. In this “watery” place, the light will not scatter correctly. And a white, close to yellow spot will appear.

If the stain appears some time after the purchase, then such a defect can be attributed to a factory defect. Most likely, several mistakes were made during its assembly. Some of the mounting screws for collecting the shield may be oversized in length. This may cause some internal parts to support the screen area. And with certain actions, the stain could appear only after some time. For example, due to the fact that you sat on the phone while it was in the back of your pants.

With a factory defect and technical reasons for the appearance of colored spots on the smartphone screen, they will not move.

No matter how you change the orientation of the body. Try to move the stain in every possible way to be sure of this.

Overheating of the mobile phone case

Yellow spots appear most often due to prolonged and strenuous work of a mobile device. Regardless of the model and brand, the main enemy of phones is high temperatures. Manufacturers are trying to make them more powerful with each new version of the line. But there is no cooling system as such. Since for the user an important parameter is also the compactness of the case. If you often noticed how after several hours of playing or working your smartphone began to get very hot, then the stains appeared on the screen for this reason.

The elements that make up the sensor of your mobile device simply burn out from the high temperature. As a result, yellow-white spots of different size and shade appear. If a yellowish spot appears on the phone screen due to high temperature, then most likely you cannot do without replacing the display module.

But do not immediately contact the technical service. Since we can get a practically serviceable smartphone repaired. But you still have to pay.

A yellow spot appeared on the phone screen. what to do?

With the advent of devices with touch screens, they have become more convenient in terms of viewing the displayed information. But due to the fact that the display area has increased significantly, malfunctions associated with it began to appear more often. In this article, you will learn what to do if a yellow spot suddenly appears on the screen of your mobile phone.

Device screen diagnostics

In addition to the reasons already listed, there are also others, including programmatic reasons. Apps from the Play Market will help you pinpoint the cause of the breakdown. Most smartphones are already equipped with similar utilities that can test the screen. All of these tools are aimed at determining if there are broken (non-working) pixels on the screen of your mobile device. Accordingly, if they are, then the entire touch screen needs to be replaced. Or repairing them.

The built-in utility is invoked from the Recovery menu screen. Or from the engineering menu. Almost all Samsung and Lenovo have similar tools. You can read more about them in the manual for the device.

And we will consider a more versatile way to identify and eliminate dead pixels using mobile applications:

Applications: Purpose:
Screen TestUsed to test for dead pixels.
Treatment of dead pixels and phantomsEliminates pixels or dots of the matrix that do not display colors correctly.

Try to download and install the program from the Screen Test link.

This is a simple and free tool that displays several graphics modes so that we can notice defects on the screen. If any exist.

Touch the screen to switch modes. The app can also be used on tablets. Use healing utilities that can eliminate dead pixels in some cases. Try to install and run the “Dead Pixels and Phantoms” utility. The program checks and immediately removes pixels or dots on the matrix that are not displaying colors correctly. The app can help you figure out what to do if a yellow spot suddenly appears on your phone screen.

A yellow spot appeared on the phone screen. what to do?

With the advent of devices with touch screens, they have become more convenient in terms of viewing the displayed information. But due to the fact that the display area has increased significantly, malfunctions associated with it began to appear more often. In this article, you will learn what to do if a yellow spot suddenly appears on the screen of your mobile phone.

The main reasons for the appearance of yellow spots on the phone screen

The touch screen of a smartphone can take on different colors in the event of a malfunction: blue, black, gray, white, and even the color of a rainbow. But it turns yellow in a situation if the matrix has been exposed to moisture penetration. Touchscreen phones are made up of several layers: thin plastic, pixels shaped like little bulbs, and a device called an inverter.

samsung, smudge, appeared, phone

Their composition may vary, since there are so many types of touch screens. When water gets into LEDs or light bulbs, they can stick together. In this “watery” place, the light will not scatter correctly. And a white, close to yellow spot will appear.

If the stain appears some time after the purchase, then such a defect can be attributed to a factory defect. Most likely, several mistakes were made during its assembly. Some of the mounting screws for collecting the shield may be oversized in length. This may cause some internal parts to support the screen area. And with certain actions, the stain could appear only after some time. For example, due to the fact that you sat on the phone while it was in the back of your pants.

With a factory defect and technical reasons for the appearance of colored spots on the smartphone screen, they will not move.

No matter how you change the orientation of the body. Try to move the stain in every possible way to be sure of this.

This is interesting: HDR what is it in the phone.

Overheating of the mobile phone case

Yellow spots appear most often due to prolonged and strenuous work of a mobile device. Regardless of the model and brand, the main enemy of phones is high temperatures. Manufacturers are trying to make them more powerful with each new version of the line. But there is no cooling system as such. Since for the user an important parameter is also the compactness of the case. If you often noticed how after several hours of playing or working your smartphone began to get very hot, then the stains appeared on the screen for this reason.

The elements that make up the sensor of your mobile device simply burn out from the high temperature. As a result, yellow-white spots of different size and shade appear. If a yellowish spot appears on the phone screen due to high temperature, then most likely you cannot do without replacing the display module.

But do not immediately contact the technical service. Since we can get a practically serviceable smartphone repaired. But you still have to pay.

What to do to remove the yellow spot on the smartphone display

Try to fix the problem yourself. Technical glue often appears as yellow spots on the phone screen, which is used to fix the internal elements. You can get rid of the stain by cooling the place of its appearance. You can do it like this: wrap your smartphone with any cloth to prevent the case from getting wet. And put a piece of ice on the spot for a few minutes.

In the event that the reason is software, you will be able to solve this problem by resetting the settings to the factory settings. You can find a description of this process on the website of your device manufacturer. If you have Honor, read this manual.

READ  How To Screenshot Screen On iPhone

Device screen diagnostics

In addition to the reasons already listed, there are also others, including programmatic reasons. Apps from the Play Market will help you pinpoint the cause of the breakdown. Most smartphones are already equipped with similar utilities that can test the screen. All of these tools are aimed at determining if there are broken (non-working) pixels on the screen of your mobile device. Accordingly, if they are, then the entire touch screen needs to be replaced. Or repairing them.

The built-in utility is invoked from the Recovery menu screen. Or from the engineering menu. Almost all Samsung and Lenovo have similar tools. You can read more about them in the manual for the device.

And we will consider a more versatile way to identify and eliminate dead pixels using mobile applications:

Applications: Purpose:
Screen TestUsed to test for dead pixels.
Treatment of dead pixels and phantomsEliminates pixels or dots of the matrix that do not display colors correctly.

Try to download and install the program from the Screen Test link.

This is a simple and free tool that displays several graphics modes so that we can notice defects on the screen. If any exist.

Touch the screen to switch modes. The app can also be used on tablets. Use healing utilities that can eliminate dead pixels in some cases. Try to install and run the “Dead Pixels and Phantoms” utility. The program checks and immediately removes pixels or dots on the matrix that are not displaying colors correctly. The app can help you figure out what to do if a yellow spot suddenly appears on your phone screen.

How to remove white spots on your smartphone screen

Here are some simple and effective ways to solve the most common problems:

Reasons for the appearance of white spots on the smartphone screen

Very often, smartphone users notice that white or yellowish spots, irregularly shaped light spots or even vertical white lines appear on the screen.

Such manifestations on the phone are very annoying, especially if you do not know what to do with it and how to fix the problem. White spots can cause a lot of difficulties when controlling the device. in these parts of the screen, the touchscreen may not respond to touches, applications are displayed incorrectly, multitouch may not work (several touches on the screen at the same time), and the general appearance of your phone becomes simply unpleasant.

Small white dots on a smartphone screen are a fairly common complaint from users who actively use the device. The reason may be any damage: falling, falling into water, pressing the screen hard (for example, if you sat on it). If white spots do not cause anything other than a damaged appearance, then this is not a very big problem, much worse if your phone stops displaying running applications normally or certain buttons are not pressed in programs.

In any case, the problem with white spots or stripes needs to be addressed. But for this it is necessary to determine the reason for their appearance. It is very important to understand the nature of the anomaly on the screen. the actions that you will take with the phone depend on it. Incorrect diagnosis of the cause of the breakdown will only harm the device, since you will not be repairing what you need.

In this article, we will look at the main reasons for the appearance of white and yellow spots on the display of your device and will try to offer as many solutions to this problem as possible.

Reasons for the appearance of stripes on the smartphone screen

  • White lines appear on the display because the display flex cable is damaged or is not seating properly in its connector. Less commonly. the logic board connector itself may be damaged.

There could also be a software issue. This reason is quite rare and unlikely, but it should not be ruled out. We will not go into much of the solution to the problem with the software, since this can be easily solved using the Hard Reset procedure.

Matrix damage is the most common problem that will require sending your device to a service center. But you can replace the screen yourself, we talked about this recently in our other article.

Detachment of the glass from the matrix. this occurs as a result of the fall and subsequent impact of the smartphone. There are several solutions. independent replacement of the adhesive between the glass and the matrix (special transparent glue or double-sided tape) or sending the phone to a service workshop. If the phone is dropped, it may happen that one of the soldered components hit the main board next to the LCD.

The penetration of water / moisture under the glass very often causes a small rainbow spot on the smartphone screen. If the phone has been exposed to moisture, then the reason for the appearance of white spots and lines on the smartphone screen may not only be from the water itself under the glass. Another cause is corrosion, which has damaged the connection pins between the display and logic board.

  • If your smartphone is old, general wear and tear on hardware and software can cause a problem of white spots on the screen.
  • Software problem. during the installation of programs or updates, the device was interrupted, and this may also lead to abnormal functioning of the smartphone screen.
  • Large files and clogged memory can also affect the performance of applications, causing external anomalies on the screen associated with a lack of RAM or internal memory. As a result, the whole system starts to work incorrectly.
  • How to get rid of white spots on the display while using apps

    Very often, anomalies on the screen are usually observed when using a particular application on the device. Smudges or streaks of various shades suddenly appear on the smartphone screen when you launch a certain application. But this problem is very easy to fix by following these steps:

    First, unplug your device. To do this, press the power button for 7-10 seconds and wait until the phone display completely turns off. If this does not turn off the device, remove the battery (only for phones with removable batteries) and leave it in this position for 5-10 minutes. Then insert the battery and turn on the phone.

    Once the device is successfully turned on, you need to do these three things immediately:

    • Clear data and app cache.

    This method helps to combat the problem of white spots on the screen when it is called by a specific application. To clear your cache, click on Settings and select Application Manager. Now tap on the name of the app where the white streaks appear. Then go to “Application Information”, select “Clear Data” and click “Clear Cache”. This method helps to erase any unnecessary data that might be causing the crash.

    • Removing unwanted applications

    By uninstalling unnecessary apps, you get free space on your device. You can do this while you are on the “Application Information” screen as described above by simply clicking “Uninstall”.

    • Move app to internal storage

    Another useful method of solving the problem of how to remove the yellow spot on the smartphone screen while using the application is to move the application from its internal memory to the SD card.

    Click on “Settings” and open “Applications”. Now select the app you want to move. Then under “Application Information” select “Storage” and then click “Move”.

    How to fix white spots after being dropped / damaged.

    Smartphones are constantly falling. Such incidents may not even leave marks on the case, but white spots will appear on the screen. In most cases, upon impact, the LCD display connectors are disconnected, and this leads to the fact that a yellow spot appears on the smartphone screen. If this cable “falls off” constantly, we recommend that you replace it. However, if the connector is simply misaligned by the impact, here’s what you can do:

      Turn off the device completely by pressing the power off button for 10 seconds, and then remove the back cover of the smartphone and take out the battery. You now have access to the internal components of the device.

  • Use a thin and flat tool (usually a small flat-blade screwdriver) to detach the connector tape from the LCD.
  • Carefully check the connector for dust and other debris, then wipe it with alcohol (DO NOT use any solvent) and gently place it back in its original position.
  • Now fix the tape again with the appropriate terminals.
  • Put the battery back in, close the cover and turn on the smartphone.
  • In 90% of cases, such actions will eliminate the problem with white stripes on the smartphone screen.

    Solving other problems

    • If spots appear on the smartphone screen after water, then there are several solutions:
    • Water got between the matrix and the glass of the screen. the service center will help you to fix the problem. On your own, of course, you can try to disassemble the phone, but you risk damaging the matrix without the necessary experience.
  • Moisture has oxidized the contacts of the matrix connection loop to the logic board. If the connection connector is under the battery, you can remove and clean it yourself. If the cable is hidden inside the case, contact the service center.
  • If a stain appears on the smartphone screen under a protective glass, you will need to remove it, wipe it dry and reinstall it. But protective glasses, as a rule, cannot be glued again, you will have to buy a new one.
    • Vertical, even stripes of white or yellowish color. hardware problems, it is also better to contact the service center.
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  • Yellow spots that change size when you press the screen are glue or double tape peeling off. The problem is solved very simply: you need to re-glue the glass of the smartphone screen.
  • Broken display

    After falling or hitting some part of the screen, the image disappeared. this is a sign of a broken display. A spot of this origin most often has an irregular shape, cracks can diverge from it, and if you press on it, its size can increase, the shape can also change.

    Reasons for the appearance of stains on the screens of smartphones and tablets

    Have you ever noticed strange spots on the screen of your smartphone or tablet? The appearance of any stains or streaks on the screen of the device signals a malfunction of the display module. Today we will tell you about the reasons for their appearance.

    Sticking display and touchscreen

    Today, the problem of sticking the display with the sensor mainly occurs in budget smartphones.

    In inexpensive models, there is an air gap between the display and the sensor. When the space between the display and the sensor is reduced, they can stick together and remain in this state for a long time.

    The adhesive stain can be easily recognized. It is noticeable when the display is off and may partially disappear when the backlight is on. It looks like a liquid sandwiched between glasses. When faced with such a problem, users often think that water has entered the device. It is possible to eliminate such a stain, but for this you need to re-glue the touch screen.

    Display malfunctions

    Defective pixels

    If a small dot of red, blue or green appears on a solid black or white background of the screen, it means that there are dead pixels.

    A broken pixel is a separate element that loses the ability to change its color.

    Often, manufacturers indicate the quality class of monitors, guided by the permissible number of dead pixels.

    Ⅰ. there are practically no dead pixels. In the event of a broken pixel, the manufacturer undertakes to repair under the terms of the warranty or replace the display;
    Ⅱ. the presence of 2 defective pixels (white or black) is allowed;
    Ⅲ. the presence of 5 white, 15 black and 50 color dead pixels is allowed;
    Ⅳ. 50 white, 150 black and up to 500 color dead pixels are allowed.

    It should be noted that the quality class of the display directly affects the price of the spare part. The higher the quality, the more expensive the display is.

    Manufacturing defects

    A stain resulting from a manufacturing defect occurs during assembly of the display and very often resembles a stain caused by moisture ingress. The manufacturer may choose the wrong length of the screws, because of which they rest against the reverse side of the display and lead to squeezing of the films together.

    Such a spot has an oval shape and does not change it at different angles of inclination. By the same principle, stains are formed from the ingress of third-party objects, for example, sand.

    Moisture

    Quite often, moisture penetration into the device causes a stain to appear. The backlight of LCD displays consists of films, an inverter and lamps. LEDs shine on the side of the plate, and the films scatter the light, forming a uniform backlight on the screen.

    If liquid penetrates between the layers of the film, they stick together. Where they touch, light is refracted at the wrong angle and a spot appears on the screen.

    The “wet spot” is usually irregular and brighter. At different angles of inclination, the stain will change its shape or will not be noticeable at all.

    If your device has an AMOLED display, then you have no cause for concern. Such screens have a different technology for the structure of the backlight. If a small amount of liquid gets inside the device, the stain will not appear.

    If you’re having problems with your iPhone’s backlight, you can replace it. Purchase the new display backlight here.

    Display controller does not work

    With the help of this microcircuit, which is located on the cable, the transfer of the image to the display is controlled. The controller breaks down from mechanical impact, that is, from a strong fall or impact. It can also be damaged by liquid.

    If the controller is damaged, the image may disappear altogether: the screen becomes completely white or black. But more often than not, when the controller breaks down, multi-colored vertical stripes appear. If you press on the screen, the stripe configuration will change.

    It happens that the image can disappear only in one place on the display. Such a spot will have clear boundaries, and a normal picture will be displayed on the rest of the screen.

    Note! If the backlight disappears both on the screen and on the buttons, the problem is most likely with the board.

    Varieties and nature of spots on the computer

    There are many different types of screen malfunctions on PCs that cause various stains. Let’s consider some of their colors and understand the reasons for their appearance:

    • Yellow. If a yellow mark appears on the computer, it means that water has entered the device or the screen is peeling. A modern monitor consists of three layers that are interconnected with a special material. When the display peels off, the screen takes on a yellowish tint.
    • Colored or red. In this case, the screen is most likely exposed to strong magnetic waves. Most often, it takes on this shade after a thunderstorm or power surges. It is very easy to remove such spots on the monitor: you just need to disconnect the device from the mains for several hours. In addition, the reason may be a breakdown of the system unit or matrix assembly.
    • Black color. The nature of this spot should be examined in more detail.

    Important! In our separate publication, you will learn about the causes of the appearance and methods of troubleshooting such a problem as a vertical stripe on the monitor.

    What to do if the black dot appears again after pressing

    You used a suction cup to get rid of the stain on your smartphone screen. But after a while or immediately after pressing it, it appeared again. This happens when the touchscreen from the inside can press on either the insulation elements (if the smartphone has already been repaired). Or in the event that the battery of the smartphone has increased as a result of long work. There are two ways out of this situation: either you try to fix the malfunction yourself, replacing the battery or insulation inside, or send it to the service for repair.

    Another way to eliminate black streaks on the display of a mobile gadget

    Very often, the spots on the smartphone screen are black and do not change color under any circumstances. They can appear even without damage and without moisture ingress. As a result of the failure of some of the pixels. Most likely, such a device has been used for a long time. And in these cases it is difficult, if not impossible, to get rid of them. But it’s worth trying. Black spots can disappear partially or completely under pressure. Try pressing down on the formation with your finger. If there is progress for the better, then your case is not hopeless.

    Try to get rid of it by applying pressure to different areas of the stain. You can also try to warm it up before applying pressure. In this case, you can use warm air from a hair dryer. The service centers are trying to eliminate such stains with a pressure chamber. If you have this device, use it. But before placing the smartphone in the camera, you need to remove the back cover and battery.

    Or demand a refund, depending on the conditions described in the warranty card. Blotches on the screen with a factory defect are usually multi-colored, like gasoline that fell into a puddle of the street. This also means the poor quality of the adhesive that holds the touch panel and display together.

    Caring for your monitor

    The surface of the screen is the vulnerability of an LCD monitor. It should be protected from scratches, impacts and strong pressure. The outer surface of the LCD panel is a polarizer with an anti-reflective coating applied to it. The polarizer and antiglare are made as a single sheet and cannot be replaced in case of damage. Therefore, a scratch left on the screen by the claws of a cat or a playful child will be irreparable. There are monitors with a special protective glass installed over the top of the screen (for example, some Neovo models). It is worth distinguishing between monitors with protective glass from monitors with a glossy screen coating (such as CrystalBrite for some Acer monitors or OptiClear for NEC). Outwardly, such a coating looks like glass, but it has no protective functions.

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    Impact or strong pressure on the screen surface may cause permanent stains. These spots are darker in color than the rest of the surface. They are formed due to the deformation of the relief of the internal structure of the panel located between its glasses. As a result, in the deformed region, the angle of rotation of the plane of polarization of the transmitted light changes and at the output it gives a different luminosity.

    Do not use a cloth that is heavily moistened with liquid to wipe the screen. The front bezel of the case always has a gap with the surface of the LCD panel, through which excess liquid can enter directly into the monitor. Also, the bezel of the LCD panel itself ?? metal, subject to elementary corrosion. If you contact a service center with traces of corrosion, you will most likely be issued a warranty refusal due to violations of operating conditions.

    A summary of the recommendations of various monitor manufacturers for screen cleaning looks like this:

    • be sure to turn off the monitor and unplug the power cord from the outlet;
    • use a soft cloth or soft lint-free wipes for wiping;
    • to remove stains, fingerprints, it is recommended to use special aerosol cleaning agents for the screen, and the agent should be applied to a cloth or napkin, and not directly to the screen;
    • the use of solvents, acetone, products with m ammonia, etc. is not allowed;
    • when wiping the screen, avoid strong pressure on its surface.

    If your computer works around the clock, or often stays on overnight (for example, to download files from peer-to-peer networks), it makes sense to turn off the display in the display properties settings (Display ?? Properties ?? Screensaver ?? Power ?? Power schemes ?? Display off). It is not worth setting too short a time, otherwise the monitor will go into hibernation with minimal interruptions in work. If there are no significant interruptions in work, turning off the display does not make sense.

    Published by kachlife on 27.10.

    The screen of a laptop or personal computer is one of its most important components. It is with its help that the user receives the necessary information and can work on the computer. But sometimes the device breaks down or starts to work incorrectly. Thus, stripes or spots of different colors may appear. There are not very many reasons for the appearance of a defect.

    Image retention

    If the same static image is present on the monitor screen for a long time, the effect of image sticking is possible. It consists in the fact that a light “ghostly” imprint of the same picture remains on the screen.

    The effect of image retention is reversible; to remove the “fingerprint” of the image, you need to turn off the monitor for a long time (no less than that which was on the screen for a static picture). Monitors based on IPS panels are mainly affected by this effect. And in different copies of the same model, it can be different ?? from manifestation in a few hours to almost complete absence. It is recommended to use a screensaver to avoid image retention.

    The phone screen turned yellow. why and what to do

    Yellowness on the smartphone screen appears after 0.5. 1 year from the date of purchase of the device. The main reasons for this: mechanical damage to the display, periodic overheating, due to which the adhesive composition between the sensor film and the screen itself acquires the same yellowish tint. Sometimes such a defect occurs in only one place. Is this breakdown subject to repair, what is the reason for its appearance? And is it a warranty case?

    Why the smartphone screen turns yellow

    • Regular overheating of the gadget. Often the phones of gamers are susceptible to this, which can play when the smartphone is charging. At the same time, the battery and the display warm up to 60. 70 degrees, the matrix is ​​damaged (more precisely, it “burns out” the adhesive between the matrix and the sensor film).
    • Mechanical damage to the display. Often a malfunction occurs in those who carry the phone in their along with keys and coins. Strong pressure on the screen will damage the matrix and create dark spots. Dropping a gadget for a defect to appear is not at all necessary.
    • If moisture or other liquid gets into the display area, one drop is enough, so it is recommended to wear smartphones in flip cases. Laptop screens are subject to a similar defect for the same reason.

    What threatens a yellow spot on the phone screen

    In principle, if the display has turned yellow, then you can use it further. But the stain will not disappear, and over time it may increase in size.

    If a strip appears on one edge of the display, then this indicates a damaged matrix loop. This happens when moisture gets inside (the contacts are oxidized, the signal is not disturbed). As a rule, the entire display module must then be replaced.

    And if the phone screen turns yellow from moisture (the defect is more pronounced on the sides of the screen), then you cannot do without a complete disassembly of the gadget. The presence of moisture inside will lead to oxidation of the contacts on the CPU or memory chips, due to which the device will simply fail.

    How to remove yellowness from the screen

    On the forums there are recommendations on the use of special programs that supposedly will help to eliminate the defect, the only possible option to get rid of yellow spots on the screen is to completely replace the display module (or re-stick the sensor, but this is possible not on all devices and there is a risk of mechanical damage during repair matrix).

    If a yellow spot appears on the phone screen due to moisture, then complete disassembly of the display module and rinsing it in propylene alcohol sometimes helps to get rid of the defect. But in modern smartphones, collapsible displays are a rarity. Craftsmen have to shoot the film literally with a string, but the sensor becomes unusable (it needs to be replaced with a new one).

    If you have any questions. let us know Ask a question

    In general, if a problem occurs, then you cannot do without visiting the service center. Trying to remove stains yourself is not a good idea.

    Is it a warranty case?

    This nuance depends entirely on the manufacturer. For example, Meizu smartphones, in which this defect appeared during the warranty period, are changed to new ones. The same is true for Xiaomi, Huawei. Samsung has long denied the occurrence of a defect due to the manufacturer’s fault, but now they also accept phones for warranty repair (to replace the display module, and not provide a new gadget).

    There is another nuance: in many smartphones, special tags are now installed that allow the manufacturer to establish the fact of excessive heating of the gadget (they are installed inside, they look like litmus paper, which reacts precisely to exceeding the permissible temperature of 70. 80 degrees). And if the fact of overheating is established, then warranty repairs may be refused.

    In total, the appearance of yellow spots on the screen in most cases is associated with mechanical or thermal damage to the sensor film (or its adhesive base). The bug is eliminated only by completely replacing the sensor module with a new one. But even if there is a defect, you can use the device, the sensor will work normally without “ghostly” touches. The defect is of a purely aesthetic nature. How much does it cost to replace a module? It directly depends on the device model. Average (the work of the master is estimated at 2. 5 thousand, the rest is the cost of components).

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