The Xiaomi Redmi Note 7 screen suddenly starts to βghostβ?The display remains traces of static interface elements, even when you switch between applications?This is a classic symptom of residual image β a problem that owners of AMOLED-matrix face after long display of the same pixels. Unlike βburnoutβ (permanent damage), residual artifacts are often temporary and can be fixed.
In this article, we will look at all the possible causes of ghosts on the Redmi Note 7 screen, from trivial overheating to graphics driver failures, and give you step-by-step instructions with proven methods, including software tricks and hardware solutions, and how to prevent a defect from reappearing. Importantly, some methods require root rights or special utilities, but weβll start with the safest and most affordable options.
Why is the Redmi Note 7 still a ghost image?
Image persistence is the temporary βrememberingβ of pixels. AMOLED-The Redmi Note 7 is a matrix of previously displayed content. IPS LCD-The problem is less common on the screen than on the AMOLED, But it's possible. The main reasons are:
- π₯ Screen overheating: prolonged work in hot conditions or under direct sunlight accelerates the degradation of liquid crystals.
- β‘ Failures in the graphics driver: errors in firmware MIUI This can cause pixels to work incorrectly.
- π± Static interface elements: watch, notification panel or keyboard displayed by the clock unchanged.
- π Low quality firmware: custom ROM orbeta MIUI Sometimes they contain bugs that affect the display.
- π οΈ Physical damage: Falls or pressure on the screen can disrupt the uniformity of the backlight.
Distinguished from burnout (permanent damage): the residual image disappears after a few minutes or hours, while the burnout remains forever. IPS-The βghostsβ matrix is usually associated with sticking pixels or malfunctions in operation. TFT-transistors, not organic LEDs, as in the case of AMOLED.
Diagnostics: How to distinguish residual image from burnout or broken pixels
Before you start to eliminate, make sure that you have a residual image and not another problem.
- Temporality test: Turn off the screen for 10 to 15 minutes, then turn it on. If the ghost is gone, it's the residual image.
- Broken pixel test: Open a monochromatic image (e.g., a pure white or black background) and the broken pixels will be visible as colored dots.
- Burnout test: Look at the screen at a 45Β° angle. The areas that are burned out will be less bright.
| Symptoms. | Residual image | Burnout | Broken pixels |
|---|---|---|---|
| Time of extinction | Minutes/hours | Never. | Never. |
| Visibility on a monotonous background | No. | Yes (as a shadow) | Yes (colored dots) |
| Reason. | Delayed pixel response | Material degradation | Physical defect |
| Is it possible to eliminate? | Yes. | No. | Sometimes (programmatically) |
If you confirm that the problem is temporary after diagnosis, move to the methods of elimination. Otherwise, you will need to change the screen.
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To quickly check the screen for broken pixels, use the Screen Test app from Google Play. It's free and doesn't require root rights.
Method 1: Software screen reset (without root)
The safest way to eliminate the residual image is to force the display to reset through service codes or settings. On the Redmi Note 7, this can be done without losing data:
Turn off automatic brightness
Close all applications
Connect the charger (minimum 30% charge)
Backup important data (just in case)
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- Method 1: Open the Phone app and enter the code: ##36446337## From the CIT menu, select Single Test β LCD Test. The screen will blink several times to reset the stuck pixels.
- Method 2: Through the developer settings, Activate Developer Mode (7 times click on the MIUI version in Settings β About Phone). Then go to Settings β Additional β For Developers and enable the USB Debugging option. Connect your phone to your PC and follow the command: adb shell dumpsys display This will reboot the graphics subsystem.
β οΈ Warning: Do not use engineering menu codes unless you are sure of their purpose.Incorrect commands can cause network reset or other failures.
Method 2: βTreatβ Sticky Pixels with Video
If the reset didn't work, try stimulating the pixels with special videos, which works by changing colors quickly, which unlocks the sticky elements of the matrix.
- Download the video to restore pixels (for example, replace it with the current link).
- Set the screen brightness to 100%.
- Run the video in full screen mode for 30-60 minutes.
- Check the result: the residual image should weaken or disappear.
For better effect, repeat the procedure 2-3 times intermittently, this method is especially effective if the "ghosts" appeared after a long display of static elements (for example, after playing with the game). HUD-component).
Why does this method work?
Method 3: Hardware reset (reboot of the screen controller)
If the software methods did not work, the residual image may be associated with a malfunction. TCON-In this case, a hard reboot of the display module will help:
- Turn off the phone.
- Press the button combination: Power + Volume Up Hold 15-20 seconds until the screen blinks or the Xiaomi logo appears.
- Release the buttons and wait for the system to load.
This procedure resets the cache of the screen controller and often eliminates artifacts caused by temporary glitches. If the problem persists, move on to the next method.
β οΈ Note: Do not confuse this procedure with hard reset. Here we only reset the screen controller without affecting user data.
Method 4: Update firmware and reset graphics settings
Residual image may appear due to bugs in MIUI firmware, especially if you are using custom or beta.
- π² Update. MIUI Up to the latest stable version via Settings β The phone. β Updating the system.
- π Reset your graphics settings: Go to Settings β Display. Turn off Auto Brightness and Adaptive Color. Go back to Settings. β Annexes β Application management, find the System Interface MIUI and clean the cache.
Reverse to stock firmware
After updating, check the screen for residual images. If the defect remains, the cause may be a hardware malfunction - in which case, contact the service center.
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Updating your firmware eliminates up to 40% of residual image incidents caused by software failures, and always start with this method if the problem has occurred after the MIUI update.
Prevention: How to prevent the appearance of residual images
To avoid the reappearance of ghosts on the Redmi Note 7 screen, follow these guidelines:
- β±οΈ Limit the time of displaying static elements: use dark wallpaper and hide the navigation bar in games.
- π Enable automatic wallpaper change (in Settings) β Wallpaper).
- π‘οΈ Avoid overheating: Do not leave your phone in direct sunlight or use it while charging for resource-intensive tasks.
- π΅ Turn off the screen when simple: set up automatic shutdown after 30 seconds in Settings β Display. β Sleeping mode.
- π Watch the charge level: do not discharge the phone to 0% - this increases the load on the screen controller.
If you play mobile games with static HUDs frequently (like PUBG Mobile or Call of Duty), use Immersive Mode to hide the interface elements, which will reduce the risk of pixels sticking.
When do I contact the service center?
If none of the methods worked, and the residual image became permanent (does not disappear even after a long screen shutdown), this may indicate:
- π₯ The exit TCON-chip (screen controller).
- π Damage to the display plume after falling or impacting.
- π₯ Degradation of the matrix due to prolonged operation in extreme conditions.