How to update the firmware on Xiaomi Mi TV 1S: all ways and solutions to problems

Xiaomi Mi TV 1S is a popular model with a smart Android TV platform, but even such a device requires regular updates. firmware not only adds new features (for example, support for Dolby Vision or an improved remote), but also fixes critical vulnerabilities, optimizes Netflix and YouTube, and eliminates bugs with connection to the Mi Home. However, many users face problems: the update “hangs” by 0%, the TV stops turning on after reflashing, or the new version of the software “lays” more than the previous one.

In this article, we will discuss all the current ways to update Xiaomi 1S (including the L32M6-1S, L43M6-1S, L55M6-1S and others), explain how to check the current version of the firmware, where to download official files, and what to do if something went wrong. Particular attention will be paid to updating via USB - the only method that works when an OTA crashes. You will also find a table with the latest versions of the software and answers to frequent questions (for example, can you roll back the firmware or why the sound disappears after an update).

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

Before you upgrade your TV, make sure you really need a new firmware, for example, if you already have the latest version installed, re-flashing can cause crashes, to find out the current version of the software:

1. Turn on the TV and press the Settings button on the remote.
2. Go to Settings → About TV → The version of the software.
3. Record or take a picture of a line like MIUI TV 1.6.15 (MSB6.1) – this is your firmware.

Compare it to the latest versions in the table below. If your version is older, an update is required. Please note that some 1S models (such as the L32M6-1S) may display stripped down information, in which case use an alternative method:

Click on Menu → Settings → All Settings → Device Preferences → About → Software version

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If the TV does not respond to the remote, try connecting the mouse via USB – in the Android TV menu you can move the cursor.

2.Methods of updating Xiaomi 1S: which one to choose?

There are three official methods of updating firmware on Xiaomi 1S:

• 🌐 Over the air (OTA) over the Internet, the easiest, but requires stable Wi-Fi.
• 🔌 Through USB — if OTA doesn't work or you need to roll back to the old version.
• 🛠️ Manually via ADB – for power users (e.g., if the TV is not turned on).

Which way to choose?

For 90% of users, OTA or USB is the right approach. ADB is only considered if the first two fail.

3 Update Xiaomi 1S over the air (OTA)

This is the safest and most recommended way, and the TV itself finds and installs updates, but there are nuances:

Connect your TV to Wi-Fi (not via mobile hotspot)

The charge of the remote must be at least 50%

Close all apps (Netflix, YouTube, etc.)

Connect the TV to the power supply (do not use a network filter)

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Instructions:

1. Open Settings → About TV → Update system.
2. Click Check for updates.
3. If a new version is available, click Download and Install.
4. Wait until the TV is finished (the TV will restart automatically).

⚠️ Warning: If the update is “hanging” during the download phase (the progress does not move more than 30 minutes), check:

• 🔄 Internet speed (minimum 5 Mbps).
• 🔌 Supply stability (no voltage surges)
• 📶 Wi-Fi signal (if weak, connect an Ethernet cable).

If the download is interrupted, try:

Settings → Applications → All applications → Software Update → Clear the cache

4. Update Xiaomi 1S via USB (offline)

This method is needed if:

• 🚫 OTA is not working (the "Unable to Download" error).
• 🔙 We need to roll back to the old version.
• 🌍 No internet or slow connection.

You'll need:

• 🖥️ Computer or laptop.
• 🔗 USB-drive (flash drive) up to 8 GB, formatted in FAT32.
• 📄 Official firmware for your model (you can download it on the Xiaomi website).

⚠️ Warning: Don't use flash drives from NTFS or exFAT -- the TV won't see them. Also don't download firmware from third-party sites (virus risk or brick).

Step-by-step:

1. Download the firmware for your model (for example, for L55M6-1S look for a file like miui_TV_MSB6_1.6.20.zip).
2. Unpack the archive (if it is in.rar or.7z format) and rename the file to update.zip.
3. Copy update.zip to the root of the flash drive (not to the folder!).
4. Put the flash drive in. USB-TV port (preferably in the USB 2.0 if any).
5. Run Update: Settings → About TV → System Update → Three dots (⋮) → Select the Update File
6. Confirm the installation and wait for the restart (it will take 5-15 minutes).

If the TV doesn’t turn on or gets stuck on the Mi logo after the update, try:

• 🔌 Remove the flash drive and re-insert it.
• 🔄 Reboot the TV with a button on the case (hold 10 seconds).
• 📥 Repeat the process with another flash drive.

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The firmware file should be called ONLY update.zip, otherwise the TV won’t see it.

5 Manual update via ADB (for experienced)

This is a method that is needed if the TV does not turn on or "bricks" after an unsuccessful update.

• 🖥️ Computer with Windows or Linux.
• 🔌 Cable USB-A → USB-A (PC-connector).
• 🛠️ Utility ADB and Fastboot (download to Android Studio).

⚠️ Warning: The wrong commands ADB can kill the TV, and if you're not sure, call the service center.

Instructions:

1. Connect the TV to the PC with a cable (USB port on the back).
2. Open Command Prompt (cmd) in the ADB folder.
3. Check the connection: Adb devices must show the serial number of the TV.
4. Reboot your TV to Fastboot: Adb Reboot Bootloader
5. Firmware (replace file.zip to your file name): fastboot flash update file.zip
6. Reboot TV: fastboot reboot

If the teams are not working, check:

• 🔌 Cable (must support data transfer, not just charging).
• 🔄 Drivers ADB on PC (download the latest version).
• 📋 Correctness of command (registration is important!)

6. Frequent update errors and their solutions

Even if you follow the instructions, you can have problems.

If after the update there are “lags” or apps fly out, try:

Settings → Applications → All Apps → [Select App] → Clear the Cache

To completely reset the settings (if nothing helps):

Settings → About TV → Reset to factory settings

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Before reset, write down the username and password from the Xiaomi account - without it, you will not be able to activate the TV after reset.

7. Latest firmware versions for Xiaomi 1S (2026)

The table below shows the latest versions of the software for popular Xiaomi Mi TV 1S models. Before updating, check with them so as not to install outdated firmware.

⚠️ Warning: Do not install firmware from other models (e.g., files for L55M6-1S will not work for L43M6-1S) This will cause the TV to break.

You can download official firmware:

• 🌍 On the Xiaomi website (select region and model).
• 📥 Through the Mi TV Updater app (available on Google Play).

FAQ: Answers to Frequent Questions