The black, gray or color bar at the bottom of the Xiaomi Redmi Note 10 screen is a common problem that can occur after a crash, firmware update, or even for no apparent reason. In 80% of cases, it can be fixed on its own without resorting to the services of a service center. But first you need to understand what exactly you are faced with: a software failure (for example, a navigation bar display error), a hardware defect (damage of a plume or matrix), or a feature of the firmware (as in the case of immersive screen mode).
In this article, we will discuss all possible causes of the band, from the simplest (interface settings) to complex (physical damage), you will learn how to diagnose the problem, what actions will help return normal display, and in some cases, you can not do without a visit to the service. We will pay special attention to the Redmi Note 10 and its modifications (Note 10 Pro, Note). 10S), Because their screens have a specific architecture with a flexible plume, which often becomes a source of problems.
1.Diagnosis: what stripe on the screen and why it appeared
Before you try to remove the strip, determine the type of strip, which will help you choose the right way to solve:
- π± Black bar β most often indicates damage to the matrix (cracks, latching) or failure of the graphics driver. If the lane appeared after a fall, it is almost certainly a hardware problem.
- π¨ Colored stripe (red, green, blue) - a sign of damage to pixels or a failure of the plume. MIUI.
- βοΈ Gray or translucent bar β can be a navigation bar that was accidentally activated in the settings, or an artifact after a firmware update.
- π Shimmering streak β usually associated with application conflict or CPU overheating (especially if it appears during games).
Do a quick test:
- Reboot your smartphone. If the band is gone, it's a software problem.
- Try to sway the screen (gently press the bottom part) If the strip changes color or disappears, the plume is to blame.
- Connect the phone to your computer and check if the bar is displayed on your PC screen (via Mi Screen Mirroring).
Critical point: if the band appeared after a fall or moisture, do not try to solve the problem programmatically. In 95% of cases, it is physical damage, and any manipulation of the settings will only take time.
Programming methods: settings MIUI and
So let's start with the simplest solutions that don't require disassembling the phone, and often the bar at the bottom of the screen isn't a defect, but a feature of the interface or a firmware bug.
Disconnection of the navigation panel
V MIUI 12/13/14 The bottom bar could be a virtual navigation bar that was accidentally turned on to remove it:
- Open the Settings β Display.
- Select Full Screen Mode.
- Install gestures or navigation buttons (hidden).
- Reboot the phone.
If the band is left, try changing the subject:
- Click the empty space on the main screen β Topics.
- Select a standard theme (e.g. MIUI Default).
- Apply and restart the device.
Resetting screen settings
Sometimes the display settings fail, and you can bring them back to the factory settings like this:
- Go to Settings β System β Resetting settings.
- Select Reset Display Settings (not to be confused with a full reset!).
- Confirm the action.
If this method does not help, try to clear the cache of the system:
- Turn off the phone.
- Press Volume Up + Power before the Mi logo appears.
- From the Recovery menu, select the Wipe cache partition.
- Confirm and restart the device.
βοΈ Checklist before resetting settings
Updating or rolling back firmware
If the band appeared after the update MIUI, two possibilities:
- π Reverse to the previous version (if you know that the update is to blame).
- π Update to the latest stable firmware (sometimes bugs are fixed in the following patches).
To update the firmware:
- Open Settings β About the phone β System update.
- Click Check for updates.
- If a new version is available, install it.
To roll back, you'll need to unlock the bootloader and install the firmware through Fastboot. It's a risky process -- if you're not sure, you better contact the service.
How do I check the MIUI version?
3. Hardware causes: plume, matrix, contacts
If the software methods didn't work, the problem is probably the hardware. Redmi Note 10 most often fails:
- π The display plume is a thin flexible cable that connects the matrix to the motherboard, and over time it wears out or moves away from the connector.
- πΊ Screen matrix β can crack even without visible damage (microcracks).
- π Contacts on boards β oxidized or contaminated, leading to artifacts.
You can try it yourself:
3.1. Reconnect the plume.
This is the simplest hardware repair, but it requires accuracy and special tools (plastic blade, tweezers, hair dryer).
- Turn off the phone and remove it. SIM-map.
- Heat the back cover with a hair dryer (temperature) ~60Β°C) and gently pull it.
- Unscrew the screws that hold the metal frame of the screen.
- Disconnect the display plume (usually it is at the bottom) and reconnect.
- Collect your phone and check the results.
π‘
If the screen becomes less sensitive to touch after assembly, check if the plume fits tightly, sometimes helping to put a thin insulating tape under the connector.
Checking the damage matrix
If the band does not disappear even after reconnecting the plume, examine the matrix:
- π Light the flashlight at different angles β sometimes cracks are only visible in oblique light.
- π₯οΈ Connect your phone to an external monitor USB-C β HDMI. If there is no strip on the monitor, the problem is in the matrix.
On the Redmi Note 10, there is a common defect in the βpolarizer detachmentβ β when air enters between the layers of the matrix, which causes colored stripes to appear, in which case only a replacement screen will help.
3.3 When a service centre is needed
Contact a specialist if:
- π§ The strip appeared after water hit (even if the phone turned on).
- π₯ The screen overheats in the lane (this may be a short circuit).
- π οΈ Self-disassembly did not help, and the strip is spreading.
Average cost of repair:
| Type of repair | Cost (β½) | Time (hours) |
|---|---|---|
| Replacement of the display plume | 1 500 β 2 500 | 1β2 |
| Connection soldering matrix | 2 000 β 3 500 | 2β3 |
| Complete screen replacement (original) | 5 000 β 8 000 | 2β4 |
| Cleaning for oxidation | 1 000 β 2 000 | 1 |
π‘
If the lane reappears within a week after the repair, it's a guarantee, and you want to get a free re-repair or a refund.
Alternative solutions: if the lane cannot be removed
If you can't eliminate the band, but the phone is working, you can make it less noticeable:
- π¨ Set a dark theme β the black stripe will merge with the background.
- π± Use immersive mode (hide the navigation bar).
- πΌοΈ Stick a protective glass with a black frame - visually masks the defect.
To activate the immersive mode:
- Go to Settings β Display β Full-screen mode.
- Select Immersive Mode.
- Set up exceptions for apps that need navigation buttons.
If the band interferes with the work, you can turn off its area through ADB:
adb shell wm overscan 0,0,0,-50This command will "shoot" the bottom of the screen on 50 pixels (value) -50 It can be changed. It can be changed:
adb shell wm overscan 0,0,0,0π‘
Before using ADB, enable USB Debugging in Settings β About Phone β MIUI version (click 7 times on the line with the version, then go back to Additional Settings β For Developers).
5. Prevention: How to avoid screen stripes in the future
So the strip doesn't come back:
- π‘οΈ Use a cover with screen protection (for example, with protrusions at the edges).
- π Do not overheat β do not play heavy games when charging.
- π Update your firmware, but donβt install betas unless youβre ready for bugs.
- π« Avoid falls - even from a height of 30 cm can break off the plume.
If the phone falls frequently, consider dampening-layered protective glass (e.g. Spigen Glas.tR) EZ They reduce the load on the matrix when impacted.
Also, keep an eye on humidity: even a slight condensation inside the case can cause contact oxidation. If the phone is wet, don't turn it on, bring it to the service immediately.
6. Frequent repair errors and how to avoid them
Many users make the problem worse by trying to fix the phone themselves.
- π§ Using metal tools β scratches the case and can close the board.
- π₯ Overheating with a hair dryer - melts glue and damages the battery.
- π§² The use of magnets can disrupt the compass and NFC.
- π Incorrect connection of the plume β if you mix the sides, the screen will not work.
If you decide to take the phone down by yourself:
β οΈ Warning: Do not use a knife or screwdriver to lash the lid, only a plastic blade. Metal can pierce the battery, which will lead to a fire.
Another common mistake is the wrong assembly, for example, if you forget to connect the antenna cable, the network will disappear after assembly, and to avoid this, take a picture of each step of the disassembly.
If you have new problems after the repair (the touchscreen is not working, there is no sound), you probably damaged another component, in which case you should contact the service.
Video instructions and useful resources
For clarity, we recommend watching the video with the dismantling of the Redmi Note 10:
- πΉ Disassembly and replacement of the Redmi Note 10 plume (Xiaomi Repair channel).
- πΉ How to remove the black stripe programmatically (channel) MIUI Tips).
Also useful materials:
- π Forum MIUI SU β firmware-fragmentation.
- π οΈ The subject is 4PDA Renovation of the Redmi Note 10.
If you do not find the answer to your question, try to ask it on these resources β there are often experienced users and wizards.