The dual-screen problem on Xiaomi devices is one of the most annoying malfunctions faced by users of both smartphones and TVs of the brand. The picture can bifurcate horizontally, vertically or even create a โghostโ duplication effect, making it almost impossible to use the gadget. In most cases, the reason is not a physical failure of the matrix, but software failures, incorrect settings or conflicts of hardware components.
In this article, we will analyze all possible causes of dual image on Xiaomi screens, from banal user errors to serious hardware defects. You will learn how to diagnose the problem yourself, which settings to check first, and when to really contact the service center. TV, Redmi Note, POCO And other popular models. All the instructions are for firmware. MIUI 14/15 hyperos.
The reasons for the appearance of dual screen on Xiaomi
Before we start to correct, it's important to understand why the image splits, and the reasons can be divided into three big groups:
- ๐ฑ Software failures: firmware errors, application conflicts, incorrect display settings (especially after updates).
- ๐ Hardware problems: damage to the plume of the display, malfunction of the graphics processor, overheating of the chipset.
- ๐ External factors: magnetic interference, incompatible cables (for TVs), physical damage to the matrix.
On Xiaomi devices, the most common dual screen occurs after:
- ๐ Firmware updates (especially "over the air" without resetting settings).
- ๐ฎ Connecting to external monitors or TVs through HDMI/Type-C.
- ๐ฑ Custom themes or launchers (for example, Nova Launcher on the MIUI).
- ๐ Strong battery discharge (below 5%) followed by charging.
I wonder what Mi's on TVs are. TV The problem is often related to the regime. 3D, It is activated accidentally via the remote, or with the wrong refresh rate (for example, 120 Hz instead of 60 Hz). On smartphones, the culprit is often a graphics driver that โflysโ after overheating or falling.
Diagnosis of the problem: how to determine the cause
Before you try to eliminate the dual screen, make a quick diagnosis, which will save time and avoid unnecessary actions.
Step 1: Checking for hardware damage
If the screen splits physically (even visible on the screensaver or in Fastboot), the problem is most likely:
- ๐ง Display plume (often after falling or disassembling the device).
- ๐ฅ๏ธ Graphic chip (overheating, factory marriage).
- ๐ Power controller (if the split appears at low charge).
๐น Test: Connect the device to an external monitor via HDMI or USB-C. If the outside screen is normal, the problem is in the matrix or plume of your device. If the split remains, the GPU is to blame.
Step 2: Checking for software failures
If the dual screen only appears in the system (for example, in menus or apps, but not on the screensaver), the software is to blame.
Restart the device in safe mode (hold power). + Volume up when switched on)
Check if the problem disappears in Guest mode (on TVs)
Disable all third-party themes and launchers
Update the firmware to the latest version-->
๐น Important: If the dual screen goes missing in Safe Mode, the problem is in one of the installed applications. Uninstall the last installed programs or reset settings.
โ ๏ธ Attention: On Mi TVs TV With PatchWall firmware, a double image may appear due to a failure in the service com.droidlogic.app. ADB Team: Adb logcat | grep -i "display"
Method 1: Reset display settings (for smartphones)
The easiest and most effective way to use smartphones is to reset the screen to factory settings, which helps in 60% of cases when the problem is caused by incorrect display parameters.
๐ Instructions:
- Open the Settings โ Display.
- Select Additional Settings โ Resetting display settings.
- Confirm the action (a password may be required).
- Reset the device.
If the item "Reset display settings" is not (relevant for older versions) MIUI), Use an alternative method:
- Go to Settings โ About Phone โ MIUI version.
- Tap 7 times on the inscription MIUI version to activate the Developer Mode.
- Back to Settings โ Additionally. โ For developers.
- Find the WindowManager Reset option and apply it.
๐ก
If after reset the image became blurry, check the zoom settings in Settings โ Special facilities โ Font size and display. Scale down to 100%.
Method 2: Update or roll back firmware
Double screens often appear after updates MIUI or HyperOS, especially if the firmware was installed "over the air" without fully clearing the cache, in which case either a rollback to a stable version or a forced firmware reflashing will help.
Option A: Update via Recovery
If the problem occurs after the update, try reinstalling the same firmware version, but with a full cleanup:
- Download the official firmware for your model from the Xiaomi Firmware website.
- Rename the file to update.zip and transfer it to the root of internal memory.
- Press Power + Volume Up to Enter Recovery.
- Select Install update.zip โ Reboot.
Option B: Reverse to a stable version
If the bifurcation appears after the HyperOS beta update, go back to the last stable firmware:
- ๐ Download the archive with firmware (for example, V14.0.5.0.TKHCNXM For the Redmi Note 12).
- ๐ Use the Mi Flash Tool to Fastboot Firmware (instruction below).
- โ ๏ธ Important: When rolling back, do Clean All, otherwise the problem will remain.
๐ Team for firmware through Fastboot:
fastboot flash all [name file firmware].tgz
fastboot rebootโ ๏ธ Attention: Fastboot firmware erases all data! pre-backup via Mi Cloud or ADB Backup on Mi TVs. TV kickback USB-flash drive in.pkg format.
Method 3: Set Update Frequency and Permissions (for Mi) TV)
On Xiaomi TVs, dual screens are often associated with incorrect display settings, especially for models with support for 120 Hz, 4K Or Dolby Vision.
๐ง What to check:
- Open the Settings. โ Image and sound โ Frequency of update.
- Set a value of 60Hz (even if your TV supports 120Hz).
- Go to Settings. โ Additionally. โ Format HDMI and choose the Auto or RGB (instead of YCbCr).
- Turn off Dolby Vision and HDR10+ picture-setting.
๐ Recommended settings for popular models:
| Model TV set | Frequency of update | HDMI format | Colour mode |
|---|---|---|---|
| Mi TV Q2 75" | 60 Hz | RGB | Standard. |
| Redmi Smart TV X55 | 60 Hz | Automobile | Alive. |
| Mi TV A Pro 55" | 50 Hz | YCbCr 4:4:4 | Customized |
| Mi TV P1 65" | 120 Hz (for games only) | RGB | Dolby Vision is Dark |
If the dual screen has disappeared after the changes, but the image has become dull, perform color calibration:
- Go to Settings. โ Image and sound โ Image settings โ Additionally.
- Select Color Calibration and follow the instructions on the screen.
- Set Contrast at 85%, Brightness at 50%, Saturation at 60%.
What to do if the settings are reset after rebooting?
Method 4: Checking the plume and matrix (hardware repair)
If all the software methods didn't work, the problem is probably physical damage.
- ๐ Display plume (especially after drops or screen replacement).
- ๐ฅ๏ธ Graphic chip (overheating, factory defect).
- ๐ Power controller (if splitting occurs at low charge).
๐ง How to check the plume:
- Carefully remove the back cover of the device (this will require a plastic spatula and hair dryer).
- Disconnect the battery (required!), then disconnect the display plume from the motherboard.
- Check the contacts for oxidation or damage. Clean them with alcohol.
- Connect the plume back and check if the split has disappeared.
๐ Signs of a faulty graphics chip:
- The dual screen only appears when heated (for example, after 10 minutes of play).
- The image is โfloatingโ or distorted when scrolling pages.
- Artifacts are visible even in Fastboot or on the screensaver.
โ ๏ธ Note: If you have no experience in electronics repair, do not try to sell the graphics chip yourself! This requires special equipment (sweeping station, microscope) and can completely disable the device.
๐ก Temporary Smartphone Solution: If the split only appears when heated, try limiting processor performance:
- Activate Developer Mode (7 taps according to MIUI version).
- Go to Settings โ Additional โ For developers.
- Set the background process limit to 2 processes.
- Turn off window animation and transition animation.
Method 5: Alternative methods (if nothing worked)
If the standard methods didnโt work, try these non-obvious solutions:
- ๐ Reset to factory settings (helps in 30% of cases when the problem is in system files). โ The phone. โ Resetting settings.
- ๐ฑ Installation of custom recaveri (e.g, TWRP) And the firmware through it. It's suitable for advanced users.
- ๐ Cable replacement HDMI (Sometimes cheap cables bring artifacts.
- ๐ ๏ธ Updating the graphics driver through ADB: adb shell pm install -r /sdcard/gpu_driver.apk (The driver should be downloaded from the official Qualcomm or Mediatek website for your model).
๐น For Mi TVs, TV: If the double screen only appears when viewed through HDMI, try:
- Connect the source via another port HDMI (for example, HDMI 2.1 instead HDMI 2.0).
- Enable Game Mode in the settings HDMI (Reduces delays and can remove artifacts).
- Shut down. CEC (function of managing multiple devices HDMI).
๐ก
If the dual screen only appears in a particular app (like YouTube or Netflix), the problem is with the codec or the codec. DRM-Try clearing the app cache or installing an alternative version of it (e.g. YouTube Vanced).
Prevention: How to avoid recurrence of the problem
To prevent the dual screen from returning after repair or reset, follow these guidelines:
- ๐ฑ Update your firmware regularly, but donโt install beta versions on your main device.
- ๐ Avoid battery drain (keep the charge above 10%).
- ๐ฎ Do not overheat the device (use cooling stands for games).
- ๐ ๏ธ Do not drop or press the screen (especially vulnerable plumes in the Redmi Note and the POCO).
- ๐ Use original cables to connect to external displays.
๐ For Mi TVs, TV:
- ๐ Reconnect the cables once a month. HDMI (oxidation of contacts - a common cause of artifacts).
๐ก Useful tip: If you often connect your Xiaomi smartphone to your TV via Miracast or HDMI, Set a fixed resolution in the developer settings:
adb shell wm size 1080x2340(substitute 1080x2340 This will prevent automatic scaling, which sometimes causes artifacts.