Screen refresh rates are a key parameter that affects content smoothness, system response, and even device autonomy. Xiaomi devices (especially the flagship Redmi, POCO, and Mi models) often support high frequencies of 90 Hz, 120 Hz, or even 144 Hz, but can default to a standard 60 Hz to save charge. In this article, we will discuss how to check the current frequency, turn on the adaptive mode, force the maximum value and solve typical problems from the gray menu item to overheating.
It is important to understand that not all Xiaomi devices support high frequencies. For example, the budget models of the Redmi 9A or POCO M3 are limited to 60 Hz, while the Xiaomi 13 Ultra or Black Shark 5 Pro offer up to 144 Hz. We will also touch on the settings on Mi TVs (Xiaomi TVs), where the frequency may depend on the signal source (HDMI, embedded applications).
What is the screen refresh rate and why change it?
The refresh rate (measured in hertz, Hz) shows how many times a second the screen updates the image. The higher the value, the smoother the animations, scrolling and games.
- 📱 60Hz is the standard for most smartphones (enough for social networks and video).
- 🎮 90-120 Hz – optimal for games and dynamic content (less blur when moving).
- ⚡ 144 Hz+ — Professional eSports devices (e.g. Black Shark).
However, high frequency has the opposite side: the load on the processor and battery increases. On the POCO F3 at 120 Hz, autonomy can be reduced by 15-20% compared to 60 Hz. Therefore, many users choose adaptive mode, where the system automatically switches the frequency depending on the task (for example, 120 Hz in games and 60 Hz when reading).
On Xiaomi Mi TVs TV high-frequency (120 Hz) relevant for consoles (PS5, Xbox Series X) or watch high-end video FPS. But not all models support 4K@120Hz — It depends on the version. HDMI-port (needed) HDMI 2.1).
How to check the current screen frequency on Xiaomi
Before you change your settings, make sure your device does support high frequencies. There are several ways to check:
- Through system settings: 🔧 Open the Settings. → Display. → Screen refresh rate. 📊 If the point is active, your device supports frequency change. If gray, the frequency is fixed (60 Hz).
- Using applications: 📲 Install DevCheck or AIDA64 Google Play. 🔍 In the Display section, find the Refresh rate bar – there will be the current value.
Smoothness test:
- 🎥 Open the video on YouTube with 60 resolution FPS 120 FPS.
- 👀 If the scroll and animation look ragged, the frequency is lower. FPS video.
- Confirm the selection. Some models (POCO F4 GT) will require a reboot.
On devices with AMOLED-screens (for example, Xiaomi 13 Pro) can be an additional item Adaptive frequency, which automatically reduces the hertz in static images (for example, reading a book).
⚠️ Attention: On some firmware (MIUI 13 and below) after the change of frequency, a bug may appear with a flickering screen at low brightness. DC Dimming in Settings → Display. → Additionally.
Features of settings on Xiaomi TVs (Mi TV)
On Xiaomi TVs (Mi TV Q2, Mi TV P1, Redmi Smart TV) the refresh rate depends on the signal source and resolution. For example, 4K@120Hz requires:
- 📺 Supported TV HDMI 2.1 (check the model characteristics).
- 🎮 Source with 120 Hz output (e.g, PS5, Xbox Series X, PC with a graphics card NVIDIA RTX 30+).
- 🔌 Ultra High Speed Cable HDMI (common HDMI 2.0 snatch 4K@120Hz).
Instructions for setting:
- Connect the device to the HDMI 2.1 port (usually marked on the back of the TV).
- On the Mi TV remote, press Menu → Settings → Image → Additional settings → Update frequency.
- Select 120 Hz (if the point is inactive, check the signal source).
- At a source (e.g., PS5), enable 120Hz output in the display settings.
| Model TV set | Max. frequency. | Support for HDMI 2.1 | Notes |
|---|---|---|---|
| Mi TV Q2 75" | 120 Hz | Yes (2 ports) | Supports 4K@120Hz only with PS5 and Xbox Series X |
| Redmi Smart TV X65 | 60 Hz | No. | Maximum 4K@60Hz even with HDMI 2.0 |
| Mi TV P1 55" | 120 Hz | Yes (1 port) | Requires firmware update for stable operation |
| Mi TV 4S 50" | 60 Hz | No. | Budget model without high frequency support |
Important: On Xiaomi TVs, 120Hz can only work in game mode. For regular apps (YouTube, Netflix), it automatically drops to 60Hz.
Problem Solving: Frequency doesn't change or screen flickers
If the Update Frequency is inactive or artifacts have appeared after the change, try these steps:
1.The menu item is gray (inactive)
- 🔄 Update the firmware: go to Settings → The phone. → Updating the system.
- 📱 Check out the model: some devices (Redmi 9, POCO M2) They don't support frequency change.
- 🔧 Turn on the developer: Tap 7 times on the version MIUI In Settings → About the phone. Go back to Settings. → Additionally. → For developers, find the debugging. USB Allow change of refresh rate (if any).
2.The screen flickers or twitches after the change
- 🌡️ Overheating: High frequency increases load. Let the device cool down or lower brightness.
- 🔋 Resetting: If flickering does not pass, reset the display settings to factory settings (Settings) → Display. → Reset).
- 🛠️ Problem with drivers: on some devices (POCO X3 NFC) Helps to stream through Fastboot.