Xiaomi TV slows down and freezes – what to do in 2026?

Your Xiaomi Mi. TV or Redmi Smart TV Have you slowed down to respond to remote commands, got stuck when switching channels, or even thought for minutes when you launch apps? This problem is familiar to many owners of smart TVs of the brand – especially after 1-2 years of active use. In 90% of cases, the brakes are not associated with hardware, but with software failures, system overload or outdated settings.

In this article, we will analyze all possible causes of lags, from banal overheating to hidden firmware errors, and give step-by-step instructions for eliminating each of them. TV 4/5, Redmi X, A, P, Q, including Android devices TV Google TV. If your TV “gluts” after the update or does not respond to buttons at all – here you will find the answer.

Let me warn you right away: not all methods are equally effective. For example, factory resets help 78% of brakes, but require re-tuning all parameters. So we've arranged the ways from the simplest (cleaning the cache) to the most radical (flashing). Start with the first partition and move in order, so you save time.

1. Overheating - the hidden cause of brakes

The first thing to check is whether the TV is overheating. - Xiaomi TV (Especially the diagonal 55"+) They're prone to heat because of the compact housing and the weak cooling system.°C processor begins trottling (forced performance decline), which manifests as "hanging" interface.

How to understand that the problem is overheating:

• 🔥 The TV is very heated in the upper part of the case (where the ventilation holes are located).
• ❄️ Lags are strengthened after 30-60 minutes of work or when watching videos in the video 4K HDR.
• 📉 Settings menu → On TV. → System temperature status CPU 65°C.

Decisions:

• 🪟 Secure clearance 10+ posterior TV If the TV is on the bracket, check if the air vents are blocked.
• 🌬️ Use the external USB-fan (connected to the port) USB 2.0 It's a TV for extra blowing. Any model that's up to the end of the day is fine. 5V/1A.
• ☀️ Avoid direct sunlight on the body. If the TV is facing the window, use curtains or blinds.

⚠️ Attention: Do not use household fans for cooling! The flow of air with dust particles can damage electronic components. USB-Fan with filter (e.g. Arctic Breeze Mobile).

2. Cleaning the cache and application data

The most common cause of brakes is cache-filled system and user applications. Unlike smartphones, Xiaomi TVs don't have an automatic cleaning feature built in, so litter accumulates for months, especially critical for apps:

• YouTube (caches video in the background).
• Netflix/Disney+ (store viewing data).
• Google Play Services (a system process that consumes up to 1-2 GB of cache)

How to clear the cache without losing data:

1. Go to Settings → Applications → Installed Applications.
2. Select an app (such as YouTube) → Warehouse.
3. Click Clear Cache (not “Clear Data”!).
4. Repeat for all heavy applications.

For deep cleaning (if the lags remain):

Clear the cache of all applications manually|Remove unused applications|Disable Auto-Update Apps in Google Play|Restart the TV after cleaning-->

If after cleaning the cache, the TV still slows down when you start apps, try turning off background activity:

1. In the same app store menu, click Battery Management (yes, it's even on the TV!).
2. Choose to limit background activity.
3. Restart the TV (Settings → About TV → Reboot).

⚠️ Note: Do not clear the data of the Google Play Services and Android System WebView applications, this can lead to a system failure.

3. Updating the firmware: automatic and manual methods

Outdated firmware is the second most common cause of lags. Xiaomi regularly releases updates to correct performance errors, but not all TVs get them automatically. TV 4A (2018–2019) often gets stuck on older versions due to update server failures.

How to check the current version of the firmware:

1. Go to Settings. → On TV.
2. Look at the line Version MIUI TV (for example, MIUI TV 2.0.185).
3. Compare this with the latest version on Xiaomi’s official website.

Automatic update:

• 🔄 Go to Settings. → On TV. → Updating the system.
• Click Check for updates.
• If a new version is available, confirm the installation and wait for the reboot (it will take 10-15 minutes).

Manual firmware (if automatic update does not work):

1. Download the latest firmware for your model with mi.tv/update (file extension).
2. Copy it on the empty. USB-storage device FAT32).
3. Connect the flash drive to the TV and go to Settings → About TV → System Update → Update via USB.
4. Select the downloaded file and confirm the installation.

4. Reset to factory settings: when and how to do

If the previous methods didn't work, it's time for a hard reset, which is a radical solution, but it removes all the software errors that have accumulated over time.

• 📺 Set up channels (if you use a TV tuner).
• 🎮 Log in to Google, Netflix, YouTube accounts.
• 🔧 Install applications and configure the interface.

How to reset:

1. Go to Settings → About TV → Reset settings.
2. Select Reset all settings (not “Reset only network settings!”).
3. Enter. PIN-code (by default 0000 or 1234 if you have not changed it).
4. Confirm the action and wait for the reboot (it will take 5-10 minutes).

What to do after the discharge:

• 🔌 Don't connect your TV to the Internet right away! First, set up the basic settings (language, region, Wi-Fi network).
• 📥 Update the firmware to the latest version (see Section 3).
• 🚫 Don’t install all apps at once – add them one at a time to check performance.

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Before reset, take a picture of the screen with the current image settings (Settings) → Picture – this will help you restore brightness, contrast and color profile more quickly after rebooting.

5. Performance optimization: hidden settings

Xiaomi TVs have a few hidden settings that can be configured to speed up work, not documented in official instructions, but are actively used by service centers.

Disabling interface animation:

1. Go to Settings. → On TV.
2. Click 5 times in a row on the line Version MIUI TV, The message is “You became a developer».
3. Return to the main Settings menu and a new section for developers will appear.
4. Turn on Debugging. USB Find the settings: The scale of the window animation → No animation. Scale of transition animation. → No animation, duration of animation. → Off..

Limitation of background processes:

• In the same menu for developers, find the Process Limit.
• Set the process maximum 2 in the background (default is 4).
• Turn off Autosynchronization of data (if you do not use cloud services).

Forced activation GPU-acceleration:

• Enable the option of Forced Use GPU (It can cause artifacts in some applications, but speed up the interface).
• Turn off optimization. MIUI (It is a resource saving feature, but it often conflicts with applications).

⚠️ Warning: Do not turn on the option Do not turn off the screen in the developer menu! This will lead to overheating and accelerated wear of the matrix. To prevent the screen from falling asleep, use the standard sleep settings in the Settings → Screen and sound.

6.Memory problems: how to make room

Xiaomi TVs have a limited amount of internal memory (usually 8-16 GB), and over time it gets clogged with garbage. If less than 1 GB is free, the system begins to slow down. → Warehouse.

How to make room:

• 🗑️ Remove unused apps (especially games and streaming services that cache content).
• 📁 Transfer media files (movies, music) to an external drive (supported) FAT32/exFAT).
• 🧹 Clear Download folder (updates and temporary files are saved there).
• 🔍 Use a file manager (for example, FX File Explorer for large files (.apk,.tmp).

How to connect an external drive:

1. Format a flash drive or hard drive into FAT32 (file-wise < 4 GB) or exFAT (for files) > 4GB).
2. Connect the drive to the port USB 3.0 TV (usually marked in blue).
3. Settings menu → Select the storage to Transfer the data to USB (Not available on all models).

If the TV doesn’t see the external disc:

• 🔌 Try another one. USB-In some models, only one port supports the port. USB 3.0).
• 🔄 Reformat the disk into NTFS (But note that the TV can only read files, recording is not supported).
• 🔋 Check Power: 2.5′′ hard drives may require an additional source (use) USB-feed-in).

7. Hardware problems: when to carry in the service

If none of the software methods worked, the brakes could be caused by hardware malfunctions, and here are the signs that the TV needs to be shown to a specialist:

• 🔥 The TV is turned off spontaneously after 10–30 minutes of operation (overheating or malfunction of the power supply).
• 🖥️ Artifacts appear on the screen (strips, flickers, color distortions) - a problem with the video processor or matrix plume.
• 🔊 Lags are accompanied by extraneous sounds (squeaking, crackling) - malfunction of capacitors on the board.
• 🐢 The TV slows down even in the settings menu (without running applications) - wear of flash memory (eMMC) is possible).

What you can do on your own:

• 🔧 Check the reliability of cable connection (HDMI, Sometimes the lags are caused by poor contact.
• 🔄 Try another power supply (if you have a model with an external PD, for example, Mi). TV 4A 32").
• 🌡️ Measure the temperature of the body with an infrared thermometer (norm: up to 50)°C on the back panel).

Cost of repair (average prices in 2026):

⚠️ Note: If the TV is warranty (usually 12-24 months), do not open the case yourself! this will void warranty obligations.

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If the TV is only sitting when watching the video HDMI (For example, from a console or a PC, the problem may be in the cable. HDMI 2.0 or 2.1 (for 4K@60Hz).

8. Alternative solutions: if nothing has worked

If all methods are exhausted, but the TV still slows down, consider these options:

1. Use the external console:

• Connect Android TV box (such as Xiaomi Mi Box S or Nvidia Shield) to the port HDMI. This will unload the built-in TV system.
• Set the console as the main source of the signal, and use the built-in functions of the TV only for watching on-air TV.

2. Install the light firmware:

• Forums 4PDA There are custom firmware for Xiaomi TV, Optimized for weak iron (for example, LineageOS for Mi) TV).
• ⚠️ Note: Installing unofficial software will void the warranty and may lead to the “bricking” of the device.

Sell/exchange the TV:

• If the model is older than 2019, it may be exhausted.New Xiaomi TVs (e.g. Xiaomi) TV Q2 2026) equipped with MediaTek Pentonic 2000 processors, which are less likely to brake.
• Check the trade-in programs in stores (for example, Svyaznoy or M. Video) - for an old TV you can get a discount of up to 30% on a new one.

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Before selling the TV, perform a full reset and untie all accounts (Settings) → Accounts. → Delete your account. This will protect your data and increase the chances of a successful transaction.

FAQ: Frequent questions about Xiaomi lags TV