Many smartphone users are faced with a situation where the display begins to work incorrectly and the system malfunctions. The phrase “update the screen” is often misleading, since it is impossible to physically replace the matrix using software, but you can significantly improve its performance. We are talking about sensor calibration, changing the Hertz refresh rate and installing fresh drivers through updating the operating system. An integrated approach allows you to eliminate “dead zones”, improve the smoothness of animation and correct color distortions.
Before taking radical measures, you need to understand what exactly you are not happy with in the current operation of the device. If the problem lies in the software, then standard tools Android will cope with the problem in a few minutes. In cases where there is physical damage to the matrix or cable, software resuscitation will be useless. This article will analyze in detail all available methods for optimizing the display and system.
Incorrect operation of the touchscreen is often caused by cache accumulation or a conflict of installed applications. Timely firmware updates eliminate many bugs that could affect the responsiveness of the interface. It is important to approach the procedure responsibly, since incorrect software installation can lead to data loss.
Diagnostics of problems with the display and sensor
The first step towards solving the problem is an accurate diagnosis. The user needs to determine whether the problem is hardware or software. To do this, the system has hidden engineering menus and special codes that allow you to test each pixel and area of the sensor layer. Without such a check, any further actions will be in the nature of guesswork.
In most processor-based devices MediaTek or Qualcomm a hidden diagnostic section is available. To get there, you need to enter a special combination of characters in the Phone application. This menu provides access to tests that are not available in the standard settings interface. Here you can check the response to multi-touch, color accuracy and the operation of proximity sensors.
⚠️ Attention: The engineering menu contains settings, changing which can lead to unstable operation of the radio module or complete blocking of the device. Do not change settings unless you are 100% sure of their purpose.
There are several clear signs that your device requires intervention. Ignoring these symptoms can lead to aggravation of the situation, even to the complete inoperability of the touchscreen. Regularly checking the status of the screen helps identify problems at an early stage.
- 📱 The screen responds to touches with a delay or does not respond in certain corners of the display.
- 🎨 Colors are not displayed correctly, there are dead pixels or image artifacts.
- ⚡ The device presses spontaneously buttons or scrolls pages (the effect of “ghost clicks”).
- 🔄 Interface animation works in jerks, even if the system previously functioned smoothly.
Updating the Android operating system
The most effective way to eliminate software errors that affect the operation of the display is to install the latest firmware version. Developers constantly release security and optimization patches that improve the interaction of the system kernel with screen drivers. Often the problem of a “buggy” touchscreen is solved precisely after switching to a new version Android.
The update procedure can be performed in two main ways: through the device settings (OTA) or using a computer. The first method is the most preferable for the average user, as it is automated and minimizes the risk of errors. The system itself will check for a new version, download it and offer to install it.
To start checking for updates, you need to go to the settings menu. The path may differ slightly depending on the manufacturer's shell, but the logic remains the same. In the "About phone" or "System" section there is a button to check for updates. Before starting the process, make sure that the battery level is at least 50-60%.
☑️ Preparing to update the system
If automatic updating does not find a new version, this does not always mean that it is not there. Manufacturers often distribute firmware in waves, so your device may receive an update later. In this case, you can use proprietary PC utilities, such as Samsung Smart Switch, Xiaomi Mi PC Suite or Huawei HiSuite. These apps allow you to forcibly check for updates and install them, bypassing OTA restrictions.
In some cases, manually installing the firmware via mode Recovery is the only way out. This method requires downloading the official system image (a file with a .zip extension) and placing it in the internal memory or microSD card. Then the phone reboots into recovery mode, where the file installation option is selected.
adb reboot recoveryAfter executing this command, the device will reboot into recovery mode if USB debugging is installed on the computer ADB and enabled. This is an advanced method that requires care. An error when selecting a firmware file can lead to a “bricked” smartphone.
What to do if the update is frozen?
If the update process is frozen in one place for more than 15 minutes, do not panic. Try performing a forced reboot by holding down the power and volume down buttons at the same time for 10-15 seconds. If the device boots, check the system version. If not, you will need to flash the firmware via a computer.
Touch screen calibration
When the system is updated, but problems with clicks persist, sensor calibration is required. This procedure allows the system to re-determine the work area boundaries and touch sensitivity. In modern versions Android there is often no built-in calibration function, so you have to resort to third-party solutions or engineering codes.
One of the most reliable ways is to use special applications from the store Google Play. apps like Touch Screen Calibration take the user through a series of tests that involve tapping on dots that appear on different parts of the screen. The application algorithm remembers deviations and makes adjustments to the system configuration file.
There is also a universal engineering code that works on many devices. Entering this combination opens a menu where you can run a touchscreen test. However, it is worth remembering that in pure Android or in shells of new versions, this code may be blocked by the manufacturer.
| Calibration method | Complexity | Efficiency | Risks |
|---|---|---|---|
| Third-party applications | Low | Medium | Minimum |
| Engineering menu (codes) | Medium | High | Medium |
| Reset settings | High | Maximum | Data loss |
| root access (build.prop file) | Very high | High | Critical |
If you decide to use applications, choose those with a high rating and many positive reviews. Do not download dubious software that requires superuser rights unless clearly necessary. After completing the calibration procedure, be sure to reboot the device for the changes to take effect.
Before starting calibration, wipe the screen with microfiber and remove the protective glass if it is damaged or incorrectly glued. Dirt and air bubbles can distort the test results.
Adjusting the refresh rate and hertz rate
Modern smartphones are equipped with displays that support higher refresh rates, for example, 90 Hz, 120 Hz or even 144 Hz. This feature makes feed scrolling and transition animations incredibly smooth. However, sometimes users want to change this setting to save battery power or, conversely, enable it if it was accidentally disabled.
Controlling the refresh rate is usually found in the display settings section. Manufacturers call this feature differently: “Smooth Motion”, “Refresh Rate”, “High Refresh Rate”. Switching to High or Auto Select mode can dramatically change how the interface feels. If this option is not in the menu, it can be activated through the developer menu.
To access hidden settings, you must activate developer mode. To do this, you need to quickly click on the build number seven times in the “About phone” section. After this, a new item “For Developers” will appear in the main settings menu. There you can find a parameter smallest_width or forced refresh rate, although the latest versions Android often hide the ability to manually change the Hertz.
Changing the refresh rate affects not only smoothness, but also energy consumption. A display running at 120Hz consumes significantly more power than a standard 60Hz screen. Therefore, many manufacturers are introducing adaptive technologies that dynamically change the frequency depending on the content on the screen.
⚠️ Attention: The settings interface may differ depending on the version of Android and the manufacturer’s shell (MIUI, OneUI, ColorOS). If you do not find the item you need, check the official documentation for your specific smartphone model.
In some cases, forcing the maximum frequency through third-party utilities can lead to overheating of the device or unstable operation of the graphics accelerator. Use these features with caution and only if the default settings do not meet your needs.
Adaptive refresh rate mode is the best choice for most users, as it balances smoothness with battery life.
Factory reset
If neither a system update nor calibration solved the problem screen, the last software method remains - a complete reset (Hard Reset). This procedure returns the device to the state it was in when you purchased it, erasing all user data, apps, and settings. This is a radical, but often the only sure way to get rid of deep software conflicts.
Before performing a reset, it is critical to create a backup copy of all important data. Photos, contacts, correspondence and documents will be permanently deleted from the internal memory. It is recommended to use cloud services Google Drive or save the data to your computer. Ignoring this step may lead to the loss of valuable information.
You can perform a reset through the settings menu or through the mode Recovery. In the settings, the path usually looks like System → Reset → Delete all data. The device will ask you to confirm and enter a PIN code or pattern. After confirmation, the cleaning process will begin, which can take from several minutes to half an hour.
- 🔒 Make sure you remember the password for your Google account, since after the reset you will need authorization (FRP protection).
- 🔋 Connect your phone to the charger during the entire reset process.
- 💾 Check that all important files are copied to external storage or to the cloud.
After the reset is complete, the phone will reboot and start the initial setup. At this stage, it is important not to restore all applications from a backup copy at once, but to check the screen operation on a “clean” system. If the problem disappears, then some third-party application or settings conflict was to blame.
adb reboot bootloader
fastboot -w
This command is intended for advanced users who perform a reset through a computer in bootloader mode. The parameter -w means wipe (clear) data and cache. Using the command line requires installed drivers and utilities ADB/Fastboot on the PC.
What is FRP protection?
Factory Reset Protection (FRP) is Google's security system. If you reset your phone without logging out of your account, the first time you set it up, the device will require you to enter the password for the last synced Google account. This is anti-theft protection, but it can be a problem if you have forgotten the password.
Frequently asked questions (FAQ)
Is it possible to physically replace the screen with a software update?
No, a software update cannot replace a physically broken matrix or cable. If the screen has cracks, black spots or streaks caused by impact or pressure, only replacing the part at a service center will help. apps can only optimize the operation of working equipment.
Is it safe to use applications for screen calibration?
Most popular applications from the official store Google Play are safe. They do not require root access and run in user space. However, avoid apps that ask for strange permissions or are downloaded from dubious sites, as they may contain malicious code.
Why did the screen work worse after updating Android?
Sometimes the new firmware contains errors or is not optimized for a specific device model. You may also need to clear the partition cache after the update. Try resetting the settings or wait for the next security patch from the manufacturer.
How to enable developer mode if the item is not in the menu?
Go to Settings → About phone. Find "Build Number" and quickly click on it 7 times in a row. A message will appear stating that you have become a developer, and a corresponding section will appear in the main settings menu.
Does the protective glass affect the operation of the sensor?
Yes, poor-quality, too thick or incorrectly glued protective glass can reduce the sensitivity of the sensor and create "dead zones". If you have problems with pressing, try temporarily removing the glass and checking the screen operation without it.