Why the screen blinks on the Xiaomi smartphone: diagnosis and repair

Screen flickering on Xiaomi smartphones is one of the most annoying malfunctions that can manifest in many ways, from barely noticeable twitching of the image to completely spontaneously turning off the display and then turning on. In 80% of cases, the problem is software-based, but you can not ignore it - constant blinking not only interferes with the use of the phone, but can signal serious damage, such as detachment of the matrix plume or failure of the GPU.

In this article, we will discuss all the possible reasons why your Redmi screen is so popular, POCO Or Mi started blinking, from a simple firmware failure to physical damage, you'll learn how to diagnose the problem yourself (including using Xiaomi's hidden tests), which settings to check first, and when to carry the phone to the service center. We will focus on the models with AMOLED-screens (for example, Xiaomi 13 Pro or POCO F5 Pro), where flickering is often associated with the features of organic LEDs.

1. Software failures: firmware, drivers, and application conflicts

In 60% of cases, screen blinking on Xiaomi is caused by errors in the MIUI operating system or third-party programs, especially for devices that have not been updated for a long time or have been stitched with custom builds.

• 📱 An outdated version MIUI: Bugs in the graphics stack (for example, in the Mali driver) GPU) This can lead to artifacts on the screen, especially after major Android updates.
• 🔄 Conflict after the update: If the blink started immediately after installing a new firmware, the “curve” patch from Xiaomi is to blame (for example, it was with the Redmi Note 10 Pro after upgrading to the new firmware). MIUI 14.0.3).
• 🎮 Gaming or heavy app crashes: Flickering when Genshin Impact is launched, PUBG Mobile or Chrome with a dozen tabs indicates overload GPU.
• 🛠️ Developer Settings: Options included like GPU-acceleration or debugging USB Sometimes conflict with the display drivers.

The first thing you need to do is restart the phone in safe mode, and if the blinking is gone, it's one of the apps you've installed that's to blame to detect it.

1. Press the power button and select Safe Mode.
2. Check the screen for 5-10 minutes.
3. If the problem has disappeared, delete the apps one at a time, starting with the last ones installed.

⚠️ Note: On some models (e.g, POCO X3 Pro) Safe mode is switched on differently - press the power button, then tap and hold the icon Turn off until the dialogue appears.

When running a specific application | After updating MIUI| Constantly, without action binding | Only when the battery is low-->

2. Screen settings: adaptive brightness, refresh rate and color modes

Often users themselves trigger flickering by unconsciously turning on energy-saving features or experimenting with display settings. For example, adaptive brightness on Xiaomi can cause sharp spikes in backlighting if the light sensor is contaminated or not working correctly. Another common case is incompatibility of the refresh rate of the screen with firmware.

Check the following parameters:

• 🌞 Adaptive Brightness: Turn it off in Settings → Display. → Brightness. If the blinking is gone, wipe the light sensor (located next to the front camera).
• 🔄 Frequency of update: On models with 90 Hz/120 Hz (e.g. Redmi Note) 12 Pro+) Try switching to 60 Hz in Settings → Display. → Screen refresh rate.
• 🎨 Color modes: C Settings → Display. → Select the color scheme Standard instead of Saturated or Soft.
• 🌙 Dark subject: On AMOLED-Including dark mode can cause flickering due to aggressive pixel control (try turning it off).

If the blinking has disappeared after changing the settings, but you want to return the usual parameters (for example, 120 Hz), try resetting the display settings to factory:

Settings → System → Reset settings → Reset display settings

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In the models with AMOLED-screens (e.g. Xiaomi 13 Ultra) flickering at low brightness may be due to technology DC Dimming. Try turning it off in Settings. → Display. → Lighting mode (if option is available).

3.Battery and power issues: why the screen blinks at low charge

If the screen flicker only appears when the battery charge drops below 15-20%, the problem is almost certainly due to an unstable power supply.

• 🔋 Battery wear: Over time, the battery capacity decreases, and at high loads (for example, during games), the voltage is lost, causing failures in the display.
• ⚡ Power controller malfunction: The chip responsible for power distribution can fail, leading to sudden voltage spikes.
• 🔌 Poor contact of the charging connector: Oxidation or contamination of contacts USB-C may cause interruption of power.

To diagnose the problem:

1. Check the battery status with the AccuBattery app (see Battery Health option). If the value is below 80%, the battery needs to be replaced.
2. Connect your phone to the charger, and if the blinking goes away, the battery or power supply is the problem.
3. Try using a different cable and adapter, and sometimes cheap accessories don't provide stable voltage.

⚠️ Attention: On models POCO M3, Redmi 9A Xiaomi and other budget smartphones are often found defect of the power controller MT6358, This is the flashing of the screen when it's discharged, and you need to replace the chip at the service center.

Check battery health in AccuBattery |Use original cable and adapter |Use USB-C connector from dust |Test phone on charge |Disable power-hungry apps-->

Hardware malfunctions: plume, matrix, graphics processor

If the software methods didn't work, and the screen keeps blinking, the problem is probably hardware.

• 🔧 Detachment or damage to the display plume: A common cause after falls or bumps. Symptoms - flickering when you press the screen or change the angle of the phone's tilt.
• 🖥️ GPU Fault: On Xiaomi with Snapdragon chips (e.g, POCO X4 Pro) may overheat GPU, resulting in artifacts.
• 📺 Matrix failure: On AMOLED-The screens over time degrade organic LEDs, which manifests as flickering or “broken” pixels.
• 🔌 Motherboard problems: Short circuit or roll-off of components (e.g., capacitors near the display connector).

For self-diagnosis:

1. Check if the screen is responding to physical pressure (light pressing of corners), if the blinking is amplified, the plume is to blame.
2. Run the display test through the engineering menu: ##284## or use the Display Tester app from Google Play.
3. Look at the screen under the magnifying glass – if microcracks or severances are visible, the matrix is damaged.

On AMOLED models (such as the Xiaomi 12T Pro), flickering can be associated with degradation of the organic layer.

• Set the brightness to 100% and look at the screen from an angle – if yellow or green spots are noticeable, the matrix is worn out.
• Turn on Movie Mode in the display settings. If the blinking is increased, the problem is the backlight.

5. MIUI shell conflicts: rollback of updates and resetting of settings

The MIUI shell is known for its bugs, especially in the latest versions. If the screen blinks after the update, try the following steps:

1. Retracement to the previous version MIUI: Download stable firmware for your model from en.miui.com. Go to Settings → The phone. → Update the system, tap the icon ⋮ → Select a firmware file. Select the downloaded file and wait until the process is complete.

Resetting settings to factory

If a rollback is not possible, reset (don’t forget to make a backup!):

Settings → System → Resetting settings → Erase all data

Installation of custom recaveri

For advanced users: Sweep through TWRP and install a clean version of MIUI or LineageOS.

On some models (for example, Redmi Note 11 Pro+), the screen blinking after upgrading to MIUI 14 is associated with a bug in the Mali-G68 driver.

Settings → About Phone → MIUI version (shap 7 times to turn on the developer mode)


Settings → Additional → For developers → Disable hardware acceleration

⚠️ Note: Xiaomi with a blocked bootloader (Redmi) 10C, POCO M4 Pro, etc.) Firmware rollback may result in the device being locked.Unlock bootloader via Mi Unlock Tool before the procedure.

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If the blink started after the update and does not disappear even after the reset, most likely, the fault in the firmware, in which case only a rollback to the previous version or waiting for a patch from Xiaomi will help.

6.Overheating and thermal throttling: why the screen blinks during games

Screen flickering at high loads (games, 4K video, multitasking) is often associated with overheating. Xiaomi with Snapdragon processors (such as POCO F4 GT) or MediaTek (such as Redmi Note 12) triggers thermal throttling, which can cause:

• 🔥 A sharp decrease in the brightness of the screen.
• 🖼️ Artifacts or flickering due to frequency drawdown GPU.
• ⚡ Unintentional shutdown of the display for cooling.

How to check and eliminate:

1. Install the CPU Monitor or AIDA64 app to monitor the temperature.
2. If the temperature is above 60°C, clean the phone of dust (especially the charging and speaker connector).
3. Turn off background apps and reduce graphical settings in games.
4. Remove the cover - it can block the heat sink.

On active-cooled models (such as the Black Shark 5 Pro), check the fan's performance. If it gets clogged with dust, the screen will blink even under moderate loads.

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On Xiaomi AMOLED-Overheating can cause not only flickering but also constant afterglow of pixels (burn-in effect). To avoid this, do not hold static images (for example, navigation in games) for too long.

7.When to contact the service: signs of serious breakdowns

If none of these methods worked and the screen continues to blink, it is likely a hardware problem.

• 💥 Morgania is accompanied by extraneous sounds (squeaking, crackling) - this may indicate a short circuit.
• 🔥 The phone is very hot even in simple.
• 📉 The screen goes completely off for a few seconds and then switches on again.
• 🛠️ Physical damage is visible on the screen (cracks, divorces, broken pixels).
• 🔌 Morgania appears only when connecting the charging - this is a sign of a malfunction of the power controller.

The cost of repair depends on the diagnosis:

Before the service visit:

• Make a backup copy of the data (if the phone is still turned on).
• Record a video demonstrating the problem - this will help the master to make a diagnosis faster.
• Check if the service center has original parts for your model.

FAQ: Frequent questions about screen blinking on Xiaomi