Dead Pixels on Phone: Causes, Fixes, and Prevention Measures for Pixel Issues

By SmartHomeBit Staff •  Updated: 07/08/23 •  15 min read

Dead pixels on a phone can be frustrating and impact productivity. In this section, we will explore the explanation of dead pixels and how they are a common occurrence. We will also discuss the impact these pixels can have on the overall productivity of the device.

Explanation of dead pixels

Dead pixels are malfunctioning pixels on a display screen that no longer emit light, creating black spots. These can be found in smartphones, laptops, and monitors. It is essential to understand the causes and effects of dead pixels.

To detect dead pixels, compare stuck and dead pixels. Stuck pixels show one color, while dead pixels look black or unresponsive. To test for dead pixels, use a single color background image or software.

Dead pixels can result from overheating or overcooling of devices, transistor failure within the display panel, overclocking, and high humidity.

For dead pixel solutions, try giving the device a rest. Alternatively, use pixel-fixing software. Or, manually press on the area or apply heat.

If DIY methods don’t work, consider professional help. This could involve repair or replacement of the screen if it’s under warranty. This allows for proper diagnosis and suitable solutions.

Common occurrence and impact on productivity

Dead pixels are common on electronic devices. They can reduce productivity, as they disrupt the display quality. They can appear as black dots or bright spots, causing distraction and blocking a user’s view. This can impede the ability to read text or view images accurately. It can also lead to delays and wasted efforts in industries where time is crucial.

To identify dead pixels, users should look for abnormalities. They can also use software applications that cycle through different colored screens. By testing early, users can take steps to resolve the issue quickly.

How to identify dead pixels

To help you detect dead pixels on your phone screen, let’s dive into understanding the differences between stuck and dead pixels, as well as effective methods to test for their presence. By knowing how to identify these problematic pixels, you can ensure a better visual experience with your device.

Differences between stuck and dead pixels

Stuck and dead pixels can mess up images on screens. Stuck pixels show up as red, green or blue dots. Dead pixels, on the other hand, appear as black spots and don’t light up.

To spot which is which, use software to check pixel performance. Or, look closely at the display in different light. Stuck pixels will stay the same color.

Stuck pixels can sometimes be fixed. Run software to try and revive them. Or, apply heat or press gently on the area.

Dead pixels are tougher. You may need a pro or a new screen.

Put your pixels to the test and see which ones are truly dead or just stuck in pixel purgatory.

Methods to test for dead pixels

Dead pixels are an issue that may appear on electronic devices, especially screens. If individual pixels don’t show the right color or stay black, it can reduce productivity. So, it’s important to recognize dead pixels and take action.

Here’s how to do it:

  1. Use a solid color image or a white background. An image with only a few colors or a white screen works best.
  2. Check the display closely. Keep an eye out for single black or stuck pixels that don’t match the colors around them.
  3. Zoom in and move around. Zooming in and looking at different parts of the screen will help you find all dead pixels.
  4. Repeat the test. Do the test several times in different lighting and with other backgrounds. Dead pixels may not always be visible from far away.

Remember, dead pixels can appear in various forms. With this method, you can easily identify any present on your screen.

Also, automated software tools can detect dead pixels more effectively. They usually run color tests and point out any malfunctioning pixels. This is beneficial for larger screens.

By knowing how to test for dead pixels and using manual and software-based approaches, users can identify and resolve issues with their screen. That way, they can maximize productivity and user experience.

Causes of dead pixels

Dead pixels on a phone can be incredibly frustrating, but understanding the causes behind them can help us prevent and address the issue. In this section, we will explore the various factors that can lead to dead pixels. From overheating and overcooling to transistor failure and overclocking, we’ll uncover the reasons why these pixels become unresponsive. Additionally, we’ll discuss how high humidity levels can also contribute to the occurrence of dead pixels. Stay tuned to learn more about the underlying causes of this common phone problem.


Dead pixels can be caused by overheating or overcooling of a device. These temperature extremes can lead to pixel malfunction, resulting in dead pixels on the screen. Overheating happens when a device becomes too hot, potentially damaging delicate components within the display. On the other hand, overcooling refers to cold temperatures, also affecting pixel functionality.

The effect of extreme heat and cold on dead pixels is important. Damaged pixels may show as black or unresponsive areas on the screen. This worsens the visual quality and reduces productivity.

It is not only the environment that can lead to overheating or overcooling. Internal device issues, such as transistor failure and overclocking, generate heat which can damage pixels. High humidity levels can create moisture build-up, leading to condensation and pixel damage.

Don’t worry, transistors won’t start a revolution or demand equal rights.

Transistor failure

Transistor failure can lead to dead pixels on electronic devices, due to various reasons like manufacturing defects or wear and tear. Malfunctioning transistors fail to send the necessary electrical signals to individual pixels, making them unresponsive or displaying incorrect colors. It happens in both LCD and OLED screens. Once a transistor fails, it can’t be repaired, and any affected pixel is permanently unresponsive.

In severe cases, multiple dead pixels may appear on the screen, significantly affecting the visual quality and user experience. Transistor failure should be taken into consideration when troubleshooting dead pixel issues. People should look into professional help and consider replacing the screen if needed. Additionally, overclocking may cause pixels to become rebellious troublemakers, so users should reconsider their need for speed.


Overclocking can result in faster speeds and better performance for some tasks. But, it can also cause the device to heat up, possibly leading to overheating. Plus, it can raise power consumption, affecting battery life. If not done cautiously, overclocking can lead to system crashes.

Moreover, overclocking may void the warranty and increase the risk of harm. Weigh the pros and cons before attempting to overclock. Also, use proper cooling measures to prevent overheating and prolong the device’s lifespan.

Can’t decide if high humidity is worse for your hair or those dead pixels?

High humidity

High humidity can cause trouble for electronic devices. It can result in dead pixels on a screen, as well as circuitry malfunctions. Condensation and corrosion are two common issues due to moisture in the air.

Heat dissipation may be hindered by high humidity, which can lead to overheating and dead pixels. It is important to take precautionary measures, like using dehumidifiers or storing devices in controlled environments.

Prevent dead pixels by keeping electronic devices dry and using protective covers. Regularly inspect and clean devices for any signs of corrosion or condensation. This will help maintain the device’s performance, and reduce the chances of dead pixels occurring.

Be proactive to protect your electronic devices from the effects of high humidity. Dead pixels can impact productivity and user experience. Provide an optimal environment and take good care of your electronics to avoid any preventable damage.

Fixing dead pixels

Sometimes, our phones develop those annoying dead pixels that can ruin our viewing experience. In this section, we will explore various methods to fix these dead pixels. From giving the device a rest to using pixel-fixing software, manual pressing or applying heat to the pixel, and even seeking professional assistance or screen replacement options, we’ll cover all the options available to help you get rid of those pesky dead pixels.

Giving the device a rest

Dead pixels on devices can be really annoying and reduce productivity. To tackle this, one way is to give the device a break. Here’s a 5-step guide on how to do it:

  1. Turn off the device.
  2. Unplug any power cables.
  3. Let it cool down for 30 minutes.
  4. Keep it away from extreme heat or cold.
  5. Restart and check for changes in dead pixels.

By following these instructions, you can give your device a chance to recover from dead pixel issues without complicated solutions. It’s important to remember that rest may not always solve the issue, but it can be a first step to fix it.

Using pixel-fixing software

Pixel-fixing software can help repair dead pixels on a device’s screen. Specialized software can be used to try and fix these dead pixels, making the device look better.

Manual pressing or applying heat to the pixel

Apply pressure or heat to the dead pixel with caution. Too much force or heat could damage the screen.

Tap the area lightly with your finger or a cloth. Or, use a hairdryer on low heat from a distance.

These methods may not always work. If nothing happens, it’s time to get professional help.

Say bye to dead pixels. Get expert help or replace the screen for a flawless look.

Professional assistance and screen replacement options

When dead pixels show up, consulting a professional technician is recommended. Manufacturer support or customer service may help guide you to screen replacement options. Check out warranty coverage, repair programs, or extended warranties offered by the device manufacturer too.

Authorized repair centers may provide quality repairs with certified technicians and genuine parts. Local repair shops that specialize in pixel-related issues could be an alternative option. DIY screen replacement is possible if you have the right tools, instructions and confidence. But, it’s important to note that not all dead pixels may be fixable. And, replacing a faulty display may improve overall visual quality and reduce eye strain.

So, seek professional assistance and consider screen replacement options when dealing with dead pixels. It’s time for some pixel therapy!


Understanding and addressing dead pixels on phones is crucial to ensure optimal display performance. In this conclusion, we’ll provide final recommendations for troubleshooting dead pixels and emphasize the importance of dealing with these pixel anomalies. With solid strategies and informed solutions, we can mitigate the impact of dead pixels and enhance our overall phone usage experience.

Importance of understanding and addressing dead pixels

Addressing dead pixels is essential for good performance and functioning of electronic devices, particularly screens. Dead pixels refer to single pixels that don’t respond or work. These pixels can affect the image quality and user experience, causing reduced productivity and unhappiness. It’s vital to spot and take care of dead pixels quickly to stop further harm to the display.

We can tell stuck and dead pixels apart. Stuck pixels can be fixed with various methods, but dead pixels can’t be brought back to life. To test for dead pixels, we can use pixel tests or look at the screen with different background colors. Knowing how to locate dead pixels appropriately lets users deal with them effectively.

Dead pixels can be caused by many things such as overheating or cooling of the device, transistor failure, overclocking, and high humidity levels. These factors can cause pixel damage, leading to dead pixels. Knowing the reasons behind dead pixel formation allows us to put preventive measures in place and reduce future occurrences.

When dead pixels have been identified, there are a few ways to fix them. Turning the device off for a period can sometimes solve the issue. Pixel-fixing software can also be used to try and stimulate the affected pixel. Manual pressing or applying heat to the problem pixel might work in some cases. Lastly, we can get professional help or consider replacing the screen for persistent dead pixel issues.

Final recommendations for troubleshooting dead pixels on phones

Dead pixels on phones can be a real bummer. To keep a device running optimally, troubleshoot and address these pixels. Here are the steps:

  1. Find ’em: Dead pixels come in two types. Stuck pixels show one color that won’t change. Completely dead pixels show no light. To identify them, pixel testing software and online tools help.
  2. Try self-repair: If you have dead pixels, there’s self-repair methods to try. Turn off the device for a few hours. Pixel-fixing software or manually pushing and applying heat to the area may fix it.
  3. Professional help: If it doesn’t work, professional technicians can help. They have the equipment & skills to diagnose and repair. They can also give tailored solutions.

Troubleshooting dead pixels is important for a good user experience. By following these recommendations, users can keep their device running without compromising performance.

FAQs about Dead Pixels On Phone

How can I fix dead pixels on my Android phone?

To fix dead pixels on your Android phone, start by removing the phone case and restarting the device to check if the display is working properly. If the issue persists, try removing the SIM card and battery, waiting for a minute, and then reinserting them to see if the dead spots are still present. Another option is to enable Safe Mode and uninstall suspicious apps that may be causing the problem. If none of these solutions work, it is recommended to take the device to an authorized repair shop.

What are stuck pixels and dead pixels?

Stuck pixels appear as a dot in the same place and have one particular color, while dead pixels appear as a persistent small rectangle of black or white color. Stuck pixels always receive power and become defective when they display incomplete information, resulting in only one color being displayed. Dead pixels do not receive power for all their subpixels, causing them to be off and appearing as black or white rectangles.

How can I test for stuck and dead pixels on my device?

You can test for stuck and dead pixels by using the camera LCD or testing the camera sensor on your device. There are also special checker tools like the Dead Pixels Test Website, Eizo Monitor Test, and Online Monitor Test that can be used to test for defective pixels.

What are the main causes of stuck and dead pixels?

The main causes of stuck and dead pixels include overheating or overcooling, transistor failure, overclocking, and high humidity.

How can I fix stuck and dead pixels on my device?

To fix stuck and dead pixels, you can give your gadget a rest, use pixel-fixing software, or manually press or apply heat to the defective pixel. If the pixels are not fixed, it may be necessary to take the gadget to a service center for screen replacement, depending on the warranty.

How can I contact Samsung Support regarding dead pixels on my Galaxy phone?

You can contact Samsung Support by tapping on the “SMSCARE” link and texting it to “62913” for 24/7 live support. You can also reach out to Samsung through online chat or by calling 1-800-SAMSUNG. For faster response, it is recommended to use Live Chat as email support is no longer available.

SmartHomeBit Staff