How to remove the white bar at the bottom of the screen on Xiaomi phones: 7 proven ways

The white bar at the bottom of the screen on Xiaomi smartphones is a common problem that can occur after a crash, a firmware update, or even for no apparent reason. This horizontal light line not only spoils the appearance of the display, but also interferes with the comfortable use of the device, and in most cases it can be fixed on its own without resorting to expensive repairs.

We have analyzed user feedback, technical forums and service instructions to collect all the working methods of solving the problem. In this article, you will find step-by-step instructions for different scenarios, from software failures to hardware malfunctions. It is important to understand that the causes of the bandwidth can vary depending on the model (Redmi Note 10, POCO X3, Mi 11, etc.), so we will look at universal and specific solutions.

Why does the white bar appear on the screen Xiaomi

Before you start fixing, you need to understand the root of the problem. The white bar at the bottom of the screen is usually associated with one of the following reasons:

• 🔧 Software failure – firmware errors, conflicts after update MIUI or-reset.
• 📱 Trail damage – mechanical impact (hits, falls) or wear over time.
• 🔌 Matrix malfunction – factory defect or damage to pixels at the bottom of the display.
• 🔄 Conflict with the shell MIUI — The latest versions of the system (especially for the MIUI 14 and newer).
• 🔋 Overheating or voltage surges – more common when using non-original chargers.

According to service centers, 60 percent of the time, the white stripe is caused by damage to the display plume after a fall, even if the body is intact. The other 40 percent is due to software errors and factory defects. If the stripe appears suddenly without mechanical stress, try software solutions first.

On some models (Redmi 9A, POCO M3), the problem may be due to the incorrect operation of the Always-on Display function, in which case the band appears only when the lock screen is turned on and disappears after unlocking.

Method 1: Reload and reset the cache

Start with the simplest, forced reboot, which helps in 15-20% of cases where the bandwidth is caused by a temporary failure of the graphics driver.

1. Press the Power + Volume button for 10-15 seconds until the device turns off and starts to restart.
2. If the band is left after the reboot, go to Settings → Applications → Application Management.
3. Click on the three dots in the upper right corner and select Show System Processes.
4. Find MIUI System and Android System, clear the cache for both.

If this method didn’t work, try resetting the cache via Recovery:

1. Turn off the phone.


2.Cut Power + Volume up until the Mi logo appears.




3. From the Recovery menu, select Wipe & Reset → Wipe Cache.




4. Confirm the action and restart the device.

After you reset the cache, check if the lane is still there. If so, proceed to the next method.

Method 2: Update or roll back firmware

White bars may appear after the MIUI update, especially if you are using beta, in which case a rollback to stable firmware or installing the latest official version will help.

Check the current firmware version in Settings → About Phone → MIUI. If the beta version (such as 23.4.1 Beta), it is recommended to roll back to stable:

• 📲 Download the latest stable firmware for your model from the official Xiaomi website.
• 📁 Move the firmware file (.zip format) to the root folder of internal memory.
• 🔄 Go to Settings. → The phone. → Update system, press three points → Select a firmware file.

If the band appeared after the update, and the rollback did not help, try installing the firmware through Fastboot:

1. Download Mi Flash Tool and Fastboot firmware for your model.


2. Connect the phone in Fastboot mode (press Power + Volume Down).




3.In the Mi Flash Tool, select Clean All and start firmware.

Once the firmware is in place, the phone will automatically restart, see if the band has disappeared, and if it hasn't, it's probably hardware.

Method 3: Checking the display plume

If software methods have failed, the most likely cause is damage or disconnection of the plume connecting the display to the motherboard, a problem that often occurs after falls, even minor ones.

To diagnose the plume:

1. Carefully remove the back cover of the phone (a plastic shoulder blade and a hair dryer will be needed to soften the glue).
2. Unplug the battery (required!), then find the display plume – it’s usually located at the top of the board.
3. Check if the plume is tightly inserted into the connector. If it's hanging, gently connect it back.
4. Examine the plume for cracks, tears or darkening - these are signs of damage.

If the plume is damaged, it must be replaced. The cost of a new plume for popular models (Redmi Note 10 Pro, POCO X3 NFC) is 300-800 rubles. You can do the replacement yourself, but if you do not have experience, you better contact the service.

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Before disassembling the phone, take a picture of the location of all the plumes and screws, which will help to properly assemble the device back and avoid new problems.

If the plume is left behind, the matrix itself may have been damaged, in which case the display will need to be replaced.

Method 4: Screen calibration and resetting

Sometimes the white bar appears due to incorrect calibration of the display or conflict in the display settings.

• 🎨 Reset the screen settings: Settings → Display. → Additional settings → Resetting screen settings.
• 🔍 Turn on and off Adaptive Brightness in the Display Settings.
• 📏 Check the screen resolution: Settings → Display. → Screen resolution – set the recommended value.
• 🔄 Perform a soft reset (without deleting data): Settings → The phone. → Resetting settings → Resetting all settings.

If these manipulations do not help, perform a full reset to factory settings.Be sure to back up the data before doing this, as all files will be deleted:

1. Go to Settings → About Phone → Resetting.


2. Select Delete all data.




3. Confirm the action and wait for the process to be completed (it will take 5-10 minutes).

Once the phone is reset, it will reboot, and if the band is left, it's not the software that's the problem.

Method 5: Factory Marriage Testing

If the white bar appears on the new phone (in the first days of use), the probability of a factory failure of the matrix is high.

1. Check if the band is dead, swipe across the screen, and if the sensor doesn't respond to touches in the band, it confirms a hardware malfunction.
2. Make sure the band is visible in all colors. Open any image with a gradient or a monochromatic background (e.g., in a gallery or browser).
3. Try connecting your phone to an external display via USB-C → HDMI (if the model supports image output).If there is no bandwidth on the external screen, the problem is with the phone's matrix.

For devices purchased less than 14 days ago, the right of refund is valid under the consumer protection law. If the phone is older but the warranty is still valid, contact the Xiaomi service center for a free replacement display.

If the warranty is over, and the band prevents use, only the replacement of the display remains.The cost of the original matrix for flagships (Mi 12, Mi 13) can reach 10-15 thousand rubles, for budget models (Redmi 9A, POCO M4 Pro) - 2-5 thousand.

Method 6: Diagnostics through an engineering menu

Xiaomi phones have a hidden engineering menu that allows you to check the health of the display.

1. Open the Phone app.


2 Enter the code: ##4636##.




3. Go to the section Testing equipment → Display.

In this menu you can:

• 🎨 Check the color calibration (if the band is visible on all colors – a hardware problem).
• 🔍 Identify dead pixels (if the band consists of broken pixels, you will need to replace the matrix).
• 📊 View the status of the display connection (display type errors) IC Error points to problems with the plume).

If the engineering menu displays errors related to DDI (Display Driver IC), this confirms that the display controller is malfunctioning, in which case repair is possible only in the service center.

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The engineering menu is not designed for ordinary users. Don't change settings unless you're sure of their purpose - this can lead to additional crashes!

Method 7: Alternative solutions

If none of the above methods worked, try the following options:

• 🔌 Check the charger. Sometimes the lane appears when using non-original charges with unstable voltage. Try charging the phone from another power supply.
• 🌡️ Cool the phone. Overheating can cause temporary artifacts on the screen. Put the device in a cool place for 30 minutes, then check the lane.
• 🔄 Turn off Always-on Display on some models (Mi 11 Lite, Redmi Note) 10S) This feature conflicts with display drivers.
• 🛠️ Use a magnet for the test. Hold a small magnet to the bottom of the screen. If the strip changes color or disappears, the problem is in the magnetic sensor (recalibration or replacement is required).

If the band appears after moisture is injected, immediately turn off the phone and place it in a silica gel bag for 24-48 hours. Do not turn the device on until it is completely dry! Otherwise, corrosion can damage the plume contacts.

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To check for moisture, use indicators inside the phone (usually white or red dots on the battery and in the tray for the phone). SIM-If they turned red, the device came into contact with liquid.

If all attempts to eliminate the band on their own failed, contact the service center. the average cost of diagnosis in official Xiaomi services is 500-1000 rubles.

Frequently asked questions

If none of the proposed methods worked, leave the diagnosis to the specialists.Modern Xiaomi smartphones have a complex architecture, and unqualified intervention can exacerbate the problem. In official Xiaomi service centers in Russia, the average screen repair time is 3-7 days, and work warranty is provided up to 6 months.