How to Update Xiaomi Mi TV 4S: All Ways + Error Solving

Xiaomi Mi TV 4S regularly receive firmware updates that improve performance, add new features and fix bugs. However, the upgrade process can raise questions — especially if you’re encountering it for the first time. In this article, we’ll take a look at all the available upgrade options, from automatic to manual, and how to avoid typical bugs and what to do if something goes wrong.

It is important to understand that an incorrect update can lead to malfunctions in the TV, so before the procedure, it is recommended to read the instructions and prepare the device.We will consider current methods for the Mi TV 4S 32, 43, 50, 55 and 65 models, and also pay attention to the features of firmware based on Android TV and PatchWall.

If your TV is slow, doesn't support new apps, or it's buggy, it's likely to need an update, and then you'll find step-by-step guides for each method, along with tips for diagnosing problems.

1. How to check the current firmware version on Xiaomi TV 4S

Before updating, you need to know which version of the software is installed on your TV, which will help determine whether the firmware is relevant and avoid re-installing the same version.

To check the version:

1. Turn on the TV and press the Settings button on the remote.
2. Go to About TV or About (depending on the version of the interface).
3. Find the Software version or Build number.
4. Take a picture or take a picture of this information, which you will need to find updates.

For example, if you have MIUI TV 2.0.123, it means that the firmware is based on MIUI TV, not pure Android TV.

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If the menu does not have an “About TV” item, try pressing the OK button on the remote for 5 seconds – this will cause a hidden menu with advanced information.

2. Automatic update via the Internet (recommended method)

The simplest and safest method is an over-the-air update (OTA) that will find and install the latest firmware when connected to the Internet, and that is suitable for most users and doesn't require any additional devices.

Instructions:

• 🔌 Connect your TV to Wi-Fi or Ethernet (wired connection is more reliable).
• 📱 Open the Settings menu → System system → Update of the PO.
• 🔍 Click Check for Updates (Check for Updates).
• 📥 If an update is found, confirm the download and wait until it is completed.
• 🔄 After downloading the TV will suggest restarting - agree.

The process can take anywhere from 10 to 30 minutes depending on the speed of the internet and the file size.Do not turn off the power to the TV during installation - this can damage system files.

Check the stability of the Internet connection | The remote must be at least 50% | Close all applications | Do not plan to use TV for 30-40 minutes

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⚠️ Warning: If the TV has been stuck on the Xiaomi logo for more than 10 minutes after the upgrade, do not try to turn it off with the power button. wait for the process to be completed or perform a hard reboot (press the power button for 15 seconds).

3. Update through USB-a flash drive (if there is no internet or OTA doesn't work)

If automatic updates are not available (for example, due to slow internet or locking Xiaomi servers in your area), you can install firmware manually through the Internet. USB-This method is also useful if the TV doesn't see the update through the OTA.

You'll need:

• 💾 USB-flash drive of at least 4 GB (formatted in FAT32).
• 🖥️ Computer with Internet access for downloading firmware.
• 🔗 Official firmware for your model (you can download it on the Xiaomi support website).

Step-by-step:

1. Download the firmware archive for your model (for example, mi_tv_4s_55_v2.0.123.zip).
2. Unpack the archive and copy the update.zip file to the root of the flash drive (not to the folder!).
3. Put the flash drive in. USB-TV port (preferably to port) USB 2.0 if there are several).
4. Go to Settings → System → Local Update.
5. Select the update.zip file and confirm the installation.

The TV will restart and start the update process, and if the firmware file is corrupted or doesn't fit your model, E:Footer is wrong will appear.

Manual update via ADB (for power users)

This method is suitable if the standard methods do not work, or you want to install custom firmware. It will require a computer and knowledge of ADB commands (Android Debug Bridge).

Warning: Mistakes can result in a loss of warranty or failure of the TV, and only use this method if you are confident in your skills.

Instructions:

1. Turn on USB debugging on your TV: Settings → About TV → Assembly number (click 7 times) Settings → Developers → USB debugging (turn on)
2. Connect the TV to your computer via USB-C or Micro-USB (depending on the model).
3. Download and install ADB Tools on PC.
4. Open the command line and check the connection: Adb devices must display the TV serial number.
5. Download the firmware in.zip format and place it in the folder with adb.
6. Execute the command to install: adb sideload update.zip

When you're done, the TV will restart. If you're stuck, don't turn off the cable, wait. 10-15 minute.

⚠️ Note: Using unofficial firmware may disrupt the work DRM-Keys (for example, for Netflix or Disney)+ into 4K). They can be restored only through the service center.

5.Table: Comparison of ways to update Xiaomi TV 4S

6. Solving problems after the update

Sometimes, after installing a new firmware, the TV may not work properly. Let's look at the typical errors and how to fix them.

Problem 1: The TV is not turned on or stuck on the logo

• 🔄 Perform a hard reboot: disconnect from the network for 1 minute, then turn it on.
• 🔧 If it doesn't work, try resetting with Recovery Mode: Turn off the TV. Press the Menu buttons. + Volume - on the body (or back) + Hold the buttons, connect the power. In the Recovery menu, select Wipe. data/factory reset.

Problem 2: No sound after the update

• 🔊 Check the sound settings in Settings → Sound. → Exit (maybe the format has gone astray) HDMI ARC or).
• 📺 Switch the signal source (e.g., from the HDMI 1-on TV back and forth).
• 🔄 Restart the TV.

Problem 3: Apps are not working or are out of service

• 🗑️ Clear the app's cache: Settings → Annexes → [Name of name] → Clear the cache.
• 📥 Reinstall the app via Google Play.
• 🔧 Reset Android settings TV: Settings → Annexes → Reset preferences.

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If you have lost access to some features (such as Google Assistant or Chromecast) after the update, check if your Google account settings have gone wrong.

7. Where to download the official firmware for Xiaomi TV 4S

To avoid installing fake or corrupt files, download firmware only from official sources.

• 🌍 Xiaomi official website: Go to the support page. Enter the TV model (e.g. Mi) TV 4S 55) In the Downloads section, find the latest version of the software.
• 📥 Xiaomi Community Forum: Sign up at c.mi.com. Find a theme with firmware for your model (e.g, [ROM] Mi TV 4S 55" Latest Stable. Download the file and check its checksum (MD5).
• 📧 Xiaomi support: Write to the support chat (link) indicating the model and the current version of the software. Ask to send a direct link to the firmware.

If the version has changed and everything works, the update has been successful.