What is the update OTA Xiaomi: a complete guide to the firmware of smartphones and TV

If you own a Xiaomi device, be it a Redmi smartphone, Xiaomi’s flagship 14 or a Mi TV. TV Q2 — You've probably seen a notification that says, "System Update is available." OTA-Over-The-Air, which plays a key role in keeping your device safe, efficient and functional, but what exactly is behind this acronym? Why do some updates take 5 minutes to install and others weigh gigabytes and require a reboot? And most importantly – how to properly update, so as not to turn the gadget into a “brick»?

In this article, we will discuss in detail:

• 🔹 What is it? OTA How it differs from manual firmware via Fastboot or Recovery
• 🔹 How Xiaomi distributes updates: who gets them first and who waits for months
• 🔹 Step-by-step instructions for smartphones, TVs and smart watches Mi Band/Watch
• 🔹 Typical errors (from the “hung logo” to data loss) and unique ways to solve them, which are not in the official documentation

We will also analyze whether to chase the latest versions. MIUI or HyperOS, when it's safer to stay on your old firmware, and how to check if you've been planted with a virus instead of an official update. This information is relevant for 2026 and covers all current Xiaomi models, including devices running the new HyperOS.

1. OTA-Update: A simple explanation on the fingers»

abbreviation OTA It stands for Over-The-Air, which is a technology that wirelessly delivers software updates directly to your device — without having to connect it to your computer or use cables. Imagine that your smartphone or Xiaomi TV itself “calls” to the manufacturer’s server, checks for new firmware versions and, if any, downloads them in the background.

Key features OTA:

• 📲 Automation: the system itself notifies about available updates (unless the appropriate setting is disabled).
• 🔄 Incremental updates: often only modified files are downloaded, not a full firmware package (saves traffic).
• 🛡️ Security: files are signed with a digital signature Xiaomi, which excludes the substitution of malware (if you have the right settings).
• 🔋 Energy efficiency: Download is suspended if the battery is below 20% (on smartphones).

OTA It is not only used to update the operating system (MIUI/HyperOS), but:

• 🔒 Security fixes (monthly patches from Google).
• 📱 Updates of branded applications (Mi Home, Gallery, Security).
• 🎮 Camera drivers, modules NFC game-processor.
• 📺 Firmware for TVs (PatchWall, Google) TV).

⚠️ Note: On Xiaomi devices with unlocked bootloader (Bootloader) OTA-updates may not work properly, in which case it is recommended to use manual firmware via Fastboot or TWRP.

2.How Xiaomi distributes OTA-Update: Who gets the first update?

If you’ve ever wondered why your Redmi Note 12 hasn’t yet got HyperOS, while a friend has on Xiaomi. 13T It's already there, and the answer lies in the multi-stage update distribution system. Xiaomi uses a gradual rollout to minimize the risk of mass failure. Here's how it works:

The priority of updates depends on several factors:

• 📱 Series of devices: flagships (Xiaomi 14, MIX Fold 3 gets first updates, budget models (Redmi) A2, POCO M6) — last.
• 🌍 Region: Users from China and India often receive updates earlier than in Europe or Russia (due to localization).
• 🔄 Version of firmware: on devices with Global ROM Updates may be delayed compared to China ROM.
• 🔧 bootloader status: Unlocked Bootloader can exclude device from automatic rollout.

To check if your device is “stuck” at some point, go to Settings. → The phone. → Update the system and compare the version MIUI/HyperOS If your model has not received an update in a long time, it may no longer be supported (the list of such devices is published annually).

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If your device does not receive OTA-For more than 3 months, try manually downloading the firmware from the Xiaomi website and installing it through System Update. → Three points. → Select a firmware file. This often works, even if the automatic update "does not see" the new version.

3. Step-by-step instructions: how to update Xiaomi through OTA

The process of updating through OTA It's as simple as possible, but there are some nuances that can help you avoid problems. Let's look at the algorithm for three types of devices: smartphones, TVs and smartwatches.

📱 Smartphones and tablets (MIUI/HyperOS)

1. Connect to a stable Wi-Fi network (updating via mobile internet may result in additional rates).
2. The battery must be at least 50% charged (otherwise the system will block the installation).
3. Go to Settings → About the phone → System update.
4. Click "Check Updates." If the update is available, the Download button will appear.
5. After downloading, click "Install" and wait for the reboot (usually takes a lot of time). 5-15 minute).

Make a backup copy of the data|Connect to Wi-Fi|Charge the battery. >50%|Close background annexes|Shut down. VPN (It can block Xiaomi servers)-->

📺 Xiaomi TVs (Mi) TV, Redmi Smart TV)

The update of TVs has its own characteristics:

1. Turn on the TV and connect it to the internet via Wi-Fi or Ethernet.
2. Go to Settings → About TV → System Update.
3. If an update is available, select “Update Now.” Do not turn off the TV during the process (this may damage the firmware).
4. Once installed, the TV will restart automatically, and the first turn on can take up to 5 minutes.

⚠️ Attention: On Xiaomi TVs with Android TV (Before the update, it is recommended to disable Google Play Security settings. In rare cases, it blocks the installation of official firmware, mistakenly mistaking them for malware.

⌚ Smart watches and fitness bracelets (Mi Band, Watch)

For wearable devices, the Mi Fitness or Xiaomi Wear app is used:

1. Open the app and connect the watch/bracelet to the phone.
2. Go to the section with device information (usually an icon) ⚙️).
3. Click on firmware update. Make sure the watch battery is over 30%.
4. Wait until the process is complete. Don't turn off Bluetooth or shut down the app.

Manual update: when OTA doesn't work

Sometimes automatic updates fail to work: the system says "No Updates", although in the forums users are already discussing the new version, in which case manual firmware installation will help.

🔧 Method 1: Through the built-in recovery menu (Recovery)

This method is suitable for most Xiaomi smartphones and does not require unlocking Bootloader.

1. Download the official firmware for your model from the Mi Community website (select the Recovery version). ROM).
2. Rename the file to update.zip and place it in the root folder of internal memory (not in folders!).
3. Go to Settings → About Phone → System Update, click on the three dots in the upper right corner and select “Select firmware file”.
4. Show the way to update.zip And you confirm the installation. The device will reboot to Recovery and start the firmware.

🔧 Method 2: Fastboot (for experienced users)

This method requires an unlocked Bootloader and is suitable for recovering the device after a major crash.

1. Download Fastboot ROM for your model and unpack the archive into a folder on your computer.
2. Install Xiaomi drivers and the Mi Flash Tool (the official utility from the manufacturer).
3. Put the phone in Fastboot mode: turn it off, then press Volume down + Power.
4. Connect the device to your PC and launch the Mi Flash Tool. Select the firmware folder and click "Flash".

⚠️ Attention: Use of informal firmware (castom) ROM) or tools like TWRP In addition, on devices with HyperOS (2026), Xiaomi has tightened the verification of signatures, and unauthorized firmware can block access to banking applications (due to a violation of SafetyNet).

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Manual updates via Recovery are the safest way to do this. OTA Fastboot is only used in extreme cases, as it completely overwrites the system partition.

5. Typical errors in the OTA-Updates and how to fix them

Even official updates sometimes go wrong, and here are the most common problems and the least obvious ways to solve them that are not described in the official documentation:

If the device is slower after the update, try:

• 🧹 Clear the cache: Settings → Memory. → Clear the cache.
• 🔄 Reset the settings to factory (pre-make a backup!).
• 📵 Reverse to the previous firmware version (if backup is available via Recovery).

Xiaomi TVs may lose sound or image after a failed update.

1. Perform reset through Settings → The device → Resetting settings.
2. If the TV doesn’t respond to the remote, use a physical reset button (usually located on the back next to the ports). HDMI).

6. Should I upgrade? Pros and cons OTA-updates

New firmware versions promise improvements, but they don't always have to be installed right away.

✅ Benefits of Updating

• 🛡️ Security: Closing vulnerabilities (e.g., patches for Dirty Pipe or Stagefright).
• 🚀 Performance: optimized battery consumption, speed up animations (HyperOS claims 20 lag reduction%).
• 🆕 New functions: for example, in MIUI 14 appeared "Super wallpaper" with 3D-HyperOS – cross-platform synchronization with Windows.
• 📱 Compatibility: Support for new standards (Wi-Fi) 6E, Bluetooth 5.3).

❌ Risks and disadvantages

• 🐌 Slowdown: New versions on older devices (e.g. Redmi Note 8) MIUI They may be delayed due to increased requirements.
• 🔋 Increased battery consumption: early versions of updates often contain bugs that “eat” the charge (for example, MIUI 13 on POCO X3).
• 🔄 Loss of functions: HyperOS removed some chips MIUI (For example, “Second space»).
• 🚨 Modding incompatibility: Update may block Magisk or Xposed.

When it is not necessary to update:

• 📵 If your device is no longer supported (check the list here).
• 🔧 If you use custom modifications (e.g., a substituted one) boot.img Magisk).
• 📊 If the new version has a massive complaint on the forums (for example, MIUI 12.5 on Redmi 9 caused overheating).

7. How to verify authenticity OTA-update?

Attackers sometimes distribute fake "updates" that are actually viruses. Here's how to make sure you download official firmware:

🔍 Verification of source

• 🌐 Download firmware only from official sources:
• ❌ Avoid third-party sites like this XDA Developers (if they are not sure of their expertise).

🔐 File signature verification

The official firmware Xiaomi have:

• 📌 Digital signature: file must be signed with a Xiaomi Inc. certificate (can be verified via the Mi Flash Tool).
• 📝 Checksum (MD5): The official website hash next to the firmware, compare it to the hash of the downloaded file (use utilities like this one). MD5 Checker).
• 📦 Archive Structure: Official Recovery ROM folder META-INF, system and file flashable.zip.

🛡️ Additional security measures

• 🔒 Before installation, disable debugging by USB (Settings → Additionally. → For developers).
• 📡 Use mobile internet to download (in some regions, providers block malicious servers).
• 🔄 After the update, check system integrity through Settings → The phone. → Status. MIUI (should be “Official»).

⚠️ Note: If after the update in the "State of the Union" section MIUI» The word "Modified" appears, which means that the firmware has been tampered with or damaged, in which case you must perform a complete flashing through Fastboot with the official image.

FAQ: Frequent questions about OTA on Xiaomi