Why Xiaomi is not working: a full analysis of the causes and solutions for TVs, smartphones and smart devices

You've turned on Xiaomi Mi. TV, A Redmi smartphone or a Yeelight smart bulb, but the device doesn't respond, it makes a mistake or it malfunctions? This is a situation familiar to many owners of the brand's equipment - despite its reliability, even flagship models have software and hardware failures. In 80% of cases, the problem can be solved independently without contacting the service center.

In this article, we will discuss all possible reasons why Xiaomi equipment does not work, from the banal (battery is dead) to the complex (motherboard damage). For each case, we will give step-by-step instructions, tested on models from 2020-2026. MIUI Android TV, These are often the source of problems after updates.

If your Xiaomi device is:

• 🔴 It doesn't turn on or off right away.
• 📺 It hangs on the Mi or Android logo
• 🔊 Does not respond to buttons and sensors
• 🌐 Not connected to Wi-Fi or Bluetooth
• 🔋 Fast discharge or not charged

So, let's start with the most common problem: the device is not showing signs of life.

1. Xiaomi device does not turn on: check power and hardware malfunctions

If Xiaomi doesn’t respond to the power button, rule out power problems first. Even if you think the battery is charged, check for all possible causes:

• 🔌 Cable and Power Unit: Use Xiaomi’s original cable (especially for smartphones) Redmi/Poco). Cheap analogs may not provide enough current. Try charging the device from another unit (for example, from a laptop). USB-C).
• 🔋 Battery: Smartphones older than 2 years are characterized by bloating battery, which causes contacts to go away. If the device case is deformed, do not turn it on, it is dangerous!
• 🔌 Power socket/power source: Connect the charging to another socket or use power bank. Mi TVs TV Check if the filter is not working (the indicator on the power supply should burn).
• 🛠️ Contacts: Oxidation or contamination of connectors (especially on Mi Band smartwatches). Wipe the contacts with alcohol and check the density of fittings.

If after checking the power the device still does not turn on, try forced reboot:

• 📱 Smartphones: Press the power button + Volume increase by 10-15 seconds (before vibration).
• 📺 Televisions: Press and hold the power button on the remote for 20 seconds (even if the indicator is not on).
• ⌚ Smart watch/bracelets: Connect to charging and hold the side button for 20-30 seconds.

⚠️ Warning: If a flashing red light (on smartphones) or a “No boot” error (on TVs) appears on the screen after a forced reboot, this indicates firmware damage.

2. Hanging on the Mi or Android logo: what to do when bootloop

Does the device turn on but get stuck on the Mi, Android or Fastboot logo? This is called bootloop, a cyclical reboot caused by firmware failure, application conflict, or system file corruption, most commonly found after:

• 🔄 Updates MIUI/Android TV (especially on the Redmi Note 8/9 mi TV 4S).
• 📱 Install custom firmware (for example, Xiaomi.eu or LineageOS).
• 🛠️ Failed reset to factory settings.
• 🔋 Full battery discharge (in some models, this leads to a failure of the file system).

Bootloop solution (try in order):

1. Hard Reset (Hard Reset): 📱 Smartphones: Turn off the device, then pinch the power + Increase volume before the Recovery menu appears. select Wipe Data → Factory Reset. 📺 Televisions: On the remote, press Menu → Settings → Reset to factory (if menus are available) or use the combination + Loudness down on the hull.

Fastboot flashing through Fastboot

If the reset didn't work, you'll need to reinstall the firmware.

1. Download the official firmware for your model from the Xiaomi Firmware website.


2. Install the Mi Flash Tool on your PC.




3. Connect the device in Fastboot mode (press Power + Volume Reduction).




4. In Mi Flash, select the downloaded firmware file and press Flash.

Retracement to the previous version MIUI

Use Recovery to install the old firmware.

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If after reset, the device requires you to enter a Mi Account and you do not remember it, use the official unlock tool here. TV You may need to request support with a purchase check.

3. Xiaomi does not respond to the sensor or buttons: diagnostics of hardware failures

If Xiaomi's screen is lighting up but not responding to touch, or the remote/body buttons are not working, the problem can be both software and hardware.

• 🧹 Sensor cleaning: Wipe the screen with a wiltless napkin dipped in isopropyl alcohol (don't use wet wipes!). TV Check the IR port of the remote - it could have been contaminated.
• 🔄 Reboot in Safe Mode: For smartphones: Hold the power button → long-tail → Safe Mode. If this mode is running, the problem is with the third-party app.
• 🛠️ Train check: If the device fell or got wet, the sensor plume could have moved away (relevant to Redmi) 9A/9C POCO M3). Disassemble the body and check the density of the fit (experience is required!).
• 🔧 Sensor calibration: For Mi TVs TV Go to Settings. → The device → Screen. → Sensor calibration. For smartphones, type ##6484## in the dialer (not working on all models).

If the sensor doesn’t work at all (no response to touch or gestures), check:

• 🔌 Connecting the display module: On Xiaomi with AMOLED-screens (for example, Mi 11) often departs the backlight plume, which makes the screen appear dead, but the image is there (light the flashlight at an angle).
• 🔋 CPU overheating: If the device heats up and shuts down, the sensor can lock for protection. check the temperature in Settings → The phone. → Status.

⚠️ Note: Redmi Note 10 Pro and Poco F3 When you fall, you often break the sensor glass, not the display itself, and in this case, the screen will work, but with white stripes or wiggles when you press it. ~3-5 thousand rubles.).

4. Wi-Fi and Bluetooth connectivity issues: network settings

Xiaomi devices often lose Wi-Fi or Bluetooth connectivity after upgrades. Consider typical scenarios and solutions:

📶 Wi-Fi problems

• 🔄 Reset Network Settings: Go to Settings → Wi-Fi → Additionally. → Reset network settings. On TVs: Settings → Network → Reset.
• 🔒 Changing region: On Mi TV smartphone-wise MIUI Some networks are down due to regional restrictions. → Additionally. → Region: India or Singapore.
• 📡 Manual setting DNS: If Wi-Fi is connected but the internet is not working, write it down. DNS 8.8.8.8 and 8.8.4.4 (Google) or 1.1.1.1 (Cloudflare) in network settings.

🔵 Bluetooth problems

• 🔄 Cleaning up Bluetooth cache: On a smartphone: Settings → Annexes → All applications → Bluetooth → Warehouse → Clear the cache.
• 🎧 Reset headphone settings: For Mi AirDots or Redmi Buds: Put the headphones in the case, hold the button on the case for 10 seconds (the indicator will turn red).
• 📱 Power saving cutoff: B MIUI By default, aggressive energy saving is enabled, which kills background processes. Turn it off for Bluetooth in Settings → Battery → Choice of applications → Bluetooth → No restrictions.

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On Mi TVs. TV Android 10+ It often helps to roll back to an older version of the firmware through OTA-menu (hold Menu) + Back on the remote when switched on).

5.Fast discharge or charging problems: battery diagnosis

If Xiaomi is discharged in a few hours or does not charge at all, the reasons can be different: from battery wear to failure of the power controller.

🔋 Diagnostics of the battery

• 📊 Check wear: On smartphones type in the dial ##4636## → Battery information. If the wear level > 30%, it's time to change the battery.
• 🔌 Charger test: Use the Ampere (Android) app to check charging current. Redmi/Poco: 1.5–2.5 A. If current < 0.5 A, the problem is in the cable or the block.
• 🔥 Overheating when charging: If the device is heated > 45°C, turn it off! It could be a battery bloating or a controller failure. TV Check the vents – they are often clogged with dust.

⚡ Slow charging solutions

• 🔄 Reset charging settings: On smartphones: Settings → Battery → Battery settings → Reset.
• 📱 Background Disconnect: Close all apps and turn on Plane Mode. If charging has accelerated, the problem is in the background (often to blame Facebook, TikTok).
• 🔧 Battery replacement: For Redmi models 8/9 POCO X3 battery ~1–1.5 Replacement can be done independently (there are video instructions for each model).

⚠️ Note: On Xiaomi smartphones with support for fast charging (for example, Mi) 10T POCO F4) Use only original power supplies, cheap analogues can burn the charging controller, and repairs will cost 5-7 thousand rubles..

Use the original cable and power supply|Clean the charging port of dust|Check the temperature of the device|Disable energy-intensive applications|Reset the battery settings-->

Application errors and MIUI: software failure

If Xiaomi turns on, but the apps crash, the interface slows down, or there are errors like "Application Stopped," the software is to blame.

• 🔄 App cache reset: Go to Settings → Annexes → Choose a problem → Warehouse → Clear cache. System applications (such as Launcher) may require Data Clearance.
• 📦 Removal of updates: Some updates MIUI break standard applications (e.g. Camera or Gallery) and click on the app settings ⋮ → Remove updates.
• 🔧 Disabling optimization MIUI: V MIUI 12/13/14 It's turned on aggressive optimization, which kills the background. → Special facilities → Optimization MIUI → Turn it off.
• 🛠️ Firmware reinstallation: If the failures are massive (launcher crashes, settings do not work), reflash the device through Fastboot (instruction in section 2).

For Mi TVs, TV Android TV:

• 📺 Launcher reset: Go to Settings → Annexes → Launcher → Clear the data. If the app icons are gone, restart the TV.
• 🔄 Recoil to factory firmware: If after the update the sound is lost or the remote buttons do not work, download the old firmware from the XDA Developers and install through Recovery.

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On smartphones Xiaomi with MIUI 14 often helps to disable the function “Smart resolution” in the screen settings – it can cause lags and overheating.

7. Hardware malfunctions: when to carry in the service

Some problems cannot be solved by yourself, they require diagnosis and repair in the service center.

• 🔥 The device overheats and shuts down (even without loading) and it can be a processor malfunction or a short circuit on the board.
• 💧 Liquid intake (even if the device is turned on, corrosion can occur after a week).
• 📱 Cracked or "spotted" screen (on AMOLED green/purple stripes appear).
• 🔊 No sound (after falling or getting wet - most likely the speaker or plume has moved away).
• 🔌 The charging port is not working./HDMI (Like the Mi. TV Stick or Redmi Note).

Cost of repair in official Xiaomi services (2026):

⚠️ Note: Unofficial services often install unoriginal parts (for example, batteries without a controller or screens with poor color reproduction!

8 Failure prevention: How to avoid problems with Xiaomi in the future

To keep your Xiaomi device running smoothly, follow these guidelines:

• 🔄 Regular Updates: Install Updates MIUI Android TV, But not immediately after release – wait 1-2 weeks until critical bugs are detected.
• 📱 Cleaning up garbage: Use the built-in Cleanup utility (in) MIUI) application SD Maid to remove cache and unnecessary files.
• 🔋 Careful charging: Do not discharge the battery to 0% and do not keep on charging > 80% long-term. For smartphones, enable Optimized Charging in battery settings.
• 🛡️ Protection against viruses: Do not install APK from unverified sources. MIUI There is a built-in security scanner – run it regularly.
• 🌡️ Temperature control: Do not use the device in the sun or near heating appliances. For gaming smartphones (Poco F or Black Shark) buy a cooling case.

For Mi TVs:

• 📺 Update the firmware through USB (not by air to avoid interruption of loading.
• 🔌 Use a network filter – voltage surges often disable power supplies.
• 🧹 Clean the vents every 3-6 months (dust leads to overheating).

💡

On smartphones Xiaomi with MIUI 14+ Turn on the function "Extension of battery life" in the battery settings - this will reduce wear by 20-30%.

FAQ: Frequent questions about Xiaomi devices that are not working