Owners of Xiaomi Mi TV 4S 55 often face the need to update the software to get new features, fix bugs or improve the stability of the Smart TV. Android TV operating system requires regular attention, as older versions may not display content in modern applications or slowly respond to remote commands. the Update process can be automatic, but in some cases requires manual user intervention.
There are several proven methods of installing the new version of the software, each with its own advantages and disadvantages. Automatic upgrade over a Wi-Fi network is the easiest, but not always available due to regional server constraints. Manual installation through a Wi-Fi network. USB-The drive gives you full control over the process and allows you to bypass geographical locks, but requires the preparation of files.
In this guide, we will discuss in detail all the stages of preparing, downloading and installing firmware, and pay special attention to possible errors. It is important to understand that interrupting the process of writing data can lead to the failure of the device, so adherence to the algorithm of actions is critical. We will look at the nuances of working with the file system and the features of the engineering settings menu.
Preparing for updates and checking the current version
Before you start any manipulation, you need to determine exactly which version of the operating system is installed on your Xiaomi Mi TV 4S 55 right now, which will allow you to know whether the update is current at all or you are already using the latest build available. Go to the settings menu, select About TV and pay attention to the Version bar.
Make sure your TV is connected to a stable Wi-Fi or Ethernet network. If you plan to download firmware directly to your device, the connection speed is crucial. USB-Make sure the storage is formatted in the file system FAT32 or NTFS, ExFAT may not be recognized by the system at the boot stage.
⚠️ Note: Before the procedure is strongly recommended to disable all unnecessary USB-devices, leaving only the keyboard or mouse if they are necessary for navigation.
Check for space in internal memory. Although the system firmware files take up a little space, the decompression and installation process requires an additional buffer. If the memory is filled with applications, delete unused programs through the Application menu, which will prevent errors in the final stage when the system tries to write temporary files.
☑️ Preparedness for procedure
Automatic update via OTA (Over-The-Air)
The easiest way to get a new version of the software is to use the built-in OTA mechanism. The system independently checks for updates on the server and suggests installing them. To start, go to Settings, then select About device and click System Update. If the server is available, the TV will download the package itself and suggest a reboot.
However, Xiaomi Mi TV 4S 55 owners often face a situation where the system writes "No Updates found", although the new version has already come out. This is because updates come in waves and depend on the region of the device's settings. If your TV is set up for Russia or China, the servers may respond differently. Sometimes changing the region in settings helps, but this does not always work.
If the automatic search didn't work, don't despair. This is a standard situation for many smart TV models. So go to the manual method. Automotive is good for its simplicity, but it doesn't have flexibility. You can't choose a particular version to roll back or install if the automatics don't see the update.
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Try changing the region in your TV settings to India or Global if the update is not automatic.
Search and download the current firmware
To manually install, you will need to find an official firmware file. The source should only be a proven resource, such as the official 4PDA forum or the miui.tv aggregator. Downloading files from random sites carries the risk of malware viruses that can steal your Wi-Fi network data. Look for a file with the.apk extension or an archive with the.zip extension marked as stable.
It is important to distinguish between the global (Global) and Chinese (CN). For the Xiaomi Mi TV 4S 55 model sold in the CIS, a global build is usually suitable. Chinese firmware may not have Russian or Google services preinstalled, which will require additional customization.
The firmware file weighs between 500MB and 1.5GB, so it can take time to download. After downloading, check the integrity of the file. If it's an archive, unpack it on your computer to make sure that the installation apk file is inside. This is the file that you're going to need to transfer to the flash drive.
Instructions for installing firmware with USB-storage
This is the most reliable method to update Xiaomi Mi TV 4S 55 Even if you don't have the Internet, copy the downloaded firmware file (usually called the "Firmware File"). update.zip or has the name of the packet com.xiaomi.tvupdater in the root USB-Don't put the file in folders, the system may not find it.
Put the flash drive in. USB-The system must automatically detect a new file and suggest installation. If the automatic window does not appear, use a file manager (for example, File Commander or the file manager). ES Find the file on the flash drive and run it. The system will request confirmation of installation — agree.
It's going to start the process of copying files and verifying integrity. The screen can go out and light up, the TV can reboot several times, at which point you can't pull the power cord or the flash drive out. Wait for the Android TV desktop to come out.
What to do if the installation is blocked?
Alternative method: installation via ADB
For advanced users who have not been helped by standard methods, there is a way to install through debugging over the ADB network. This method allows you to “push” the installation command directly, bypassing standard interface checks. First, you need to turn on the developer mode: go to Settings → About device and quickly click 7 times on the item “Build Number”.
After activating the developer mode, turn on the debugging option USB. Now you're going to need a computer connected to the same Wi-Fi network as the TV. Install tools on the PC. ADB. Find out. IP-The address of the TV in the network settings. Connect to the device with the command:
adb connect 192.168.1.XX:5555Replace 192.168.1.XX with the real IP of your Xiaomi Mi TV 4S 55. Once successfully connected, send a command to install:
adb install -r /path/to/firmware.apkThis method requires accuracy in the input of commands. An error in the syntax will result in denial of access. Make sure that the antivirus on the computer does not block the connection to the TV.
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ADB is the most powerful tool for installing any version of software, but requires basic command line knowledge and PC availability.
Possible errors and ways to eliminate them
The most common problem is the message "Update failed" or the endless reboot cycle. If the TV is stuck on the Android or Mi logo for more than 10 minutes, try a factory reset, usually done by a combination of buttons on the remote or physical buttons on the case.
Another common mistake is region incompatibility: If you're trying to install global firmware on a Chinese version of a device (or vice versa), the system may block the installation, in which case pre-resetting regional settings or using special utilities to change the region through ADB helps.
Below is a table with common error codes and their solutions:
| Code/Error message | Probable cause | Decision-making |
|---|---|---|
| Package file invalid | The firmware file is damaged during downloading | Reload the file again, check the hash amount |
| Version lower than current | Attempt to roll back on the old version | Need a newer version or reset via Recovery |
| Install failed (19) | Conflict of certificates or signatures | Use ADB with -r flag or change your account |
| Storage full | Not enough space in the internal memory | Delete applications, clear cache, use USB |
⚠️ Warning: If the TV stopped responding to the remote after a failed update and the image disappeared, do not panic. 90% of the time, holding the switch off button on the case or disconnecting the power from the outlet for 15 minutes helps.