Xiaomi smartphone itself reboots: the reasons and how to fix it

You have picked up the Xiaomi Redmi Note 12 or POCO X5 Pro, when the screen goes out, the Mi logo pops up, and the device starts over again, without you. Is the situation familiar? The spontaneous reboot of Xiaomi smartphones is one of the most common problems faced by users of the brand. In some cases, this is a one-off phenomenon caused by a temporary failure, but if the phone is rebooted systematically, you can not ignore the problem. This behavior is not only annoying, but can also signal serious malfunctions that could lead to data loss or complete failure of the device.

In this article, we’ll look at all the possible reasons why Xiaomi can reboot on its own, from software bugs to hardware breakdowns. You will learn how to diagnose a problem without going to the service center, which settings to check first, and when to really think about repair. 10C or POCO M5), which are particularly susceptible to such failures due to the features of optimization MIUI. If your smartphone has become “glut” after updating or falling – here you will find step-by-step instructions for troubleshooting.

Before you get to specific solutions, answer one question: How often does a reboot occur? 1-2 Once a week, most likely because of software or background processes, and if the phone goes into rebuke several times a day or during specific activities (such as when you start a camera or play games), the problem probably lies deeper.

1.Overheating: Why Xiaomi shuts down and reboots when loaded

One of the most obvious causes of spontaneous reboots is overheating of the Xiaomi CPU (especially budget models on the MediaTek Helio G or Snapdragon). 6xx) They are prone to thermal trottling: when a critical temperature is reached, the system forcibly restarts the device to prevent damage to the chipset. 40-45°C to the plain and to 60-65°C under load (games, video shooting) 4K). If the sensors are fixed 70°C and above – an emergency shutdown is triggered.

How do you know if it is overheating that is to blame?

• 🔥 The phone becomes hot to the touch (especially in the area of the camera or the lower part of the body).
• 🎮 Reboot occurs during games, video rendering, or long-term shooting.
• ☀️ The problem is aggravated in hot weather or when charging.
• 📉 Settings menu → Battery → The battery temperature is 50.°C+.

What do I do?

1. Remove the cover - it can block the heat sink.
2. Close the background applications (especially messengers and social networks that load the processor).
3. Turn off charging during games – this will reduce the load on the chipset.
4. Use a cooling stand (relevant to gamers).
5. Reset the graphics settings in Settings → Display. → Performance mode (select "Balanced").

⚠️ Note: If the processor temperature exceeds 75°C in simple (no load), this may indicate a malfunction of the thermal paste or damage to the radiator. In this case, you need to disassemble the device and replace the heat conductive material.

Firmware failures: bugs MIUI and unstable updates

Software bugs are the second most common cause of spontaneous reboots. Xiaomi regularly releases updates to the software. MIUI, But not all of them are tested enough, especially in the weekly beta (for example, Xiaomi 13 Ultra or the next version). POCO F5), They can have critical bugs, and they can often have problems after that:

• 📲 Major Android updates (e.g., the transition from Android 12 to Android 13).
• 🔄 Recoiling on the previous version MIUI (downgrade).
• 🛠️ Manual intervention (unlocking the loader, installing custom recaveri).
• 📦 Installations of "raw" firmware (for example, ported from other models).

How do you diagnose the problem?

1. Check out the MIUI version in Settings → About Phone → MIUI version.
2. Search online for reviews of this version for your model (e.g., "Redmi Note 11") MIUI 14.0.5.0 bugs").
3. If the reboots started immediately after the update, the probability of a software failure is close to 100%.

Decisions:

• 🔄 Reverse to the previous version MIUI through settings → Updating the system → Three points. → Select a Service Package.
• 🧹 Clear the system cache: 1. Turn off the phone. 2. Hold on. <power-up> + <volume-button>. 3. From the Recovery menu, select "Wipe Cache".
• 📥 Install stable firmware through the Mi Flash Tool (instruction below).

⚠️ Warning: If you've never stitched a smartphone, you'd better trust a specialist to do it. The wrong firmware can turn Xiaomi into a brick. Be especially careful with firmware from third-party developers (for example, LineageOS or Pixel Experience) – they often contain bugs that lead to permanent reboots.

3. Faulty battery: when the battery is to blame for reboots

A worn or damaged battery is a common cause of spontaneous reboots, especially on smartphones older than 2 years, because over time, battery capacity decreases and internal resistance increases, leading to voltage surges that the system perceives as a signal for an emergency shutdown.

• 🔋 The phone turns off when 20-30% charge, and after switching on shows 0%.
• 🔌 Reboot occurs when connecting / disabling charging.
• ⚡ B Settings → Battery → The state of the battery capacity shows less than 80% of the original.
• 📉 The phone's running out of power. 2-3 hourly.

How do you check the battery?

Use diagnostic apps like AccuBattery (available on Google Play) to show you:

• The actual battery capacity (compare with the passport).
• Discharge rate in mA/h.
• Battery temperature (normal - up to 40)°C).
• Number of charging cycles (more than 500 cycles – critical).

What do I do?

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If you notice that the Xiaomi case has become convex or there is a gap between the screen and the frame - this is a sign of a bloated battery.

4. Application conflicts: what programs cause reboots

Sometimes the culprit of spontaneous reboots is a particular application that conflicts with the system or consumes too much resources.

• 🎮 Games with aggressive optimization (e.g. Genshin Impact, PUBG Mobile).
• 📸 Camera applications (especially third-party ones, such as Open Camera).
• 🔒 Antiviruses and cleaners (e.g. Clean Master, 360 Security).
• 🛠️ Overclocking programmes CPU/GPU (Like the Game Booster).
• 📱 Launchers and themes (e.g. Nova Launcher or custom themes for the MIUI).

How to find a problem application?

1. Launch your phone in Safe Mode (press the power button) → "Safe Mode. If the reboots have stopped, third-party software is to blame.
2. Check the Settings. → Annexes → Permits → Autostart and disable autoboot for suspicious programs.
3. Use the settings. → Battery → Using a battery to find apps with abnormal consumption.

If the culprit is found:

• 🗑️ Remove the app and check if the problem has gone away.
• 🔄 Update it to the latest version.
• 📥 Install an alternative (e.g., use built-in optimization instead of Clean Master) MIUI).

5. Hardware malfunctions: what breaks down inside Xiaomi

If the software methods didn't work, the problem is probably hardware.

• 🔌 Damaged motherboard (for example, after falling or getting moisture).
• 🔋 Faulty power controller (often fails after voltage surges).
• 📶 Problems with the communication module (for example, a defective Qualcomm modem or MediaTek).
• 🖥️ Oxidized contacts (due to humidity or corrosion).
• 🔌 Faulty charging connector (may cause short circuits).

How to diagnose a hardware malfunction?

Pay attention to the circumstances of the reboot:

• If the phone turns off when vibrating (for example, during a call) – there may be a problem with the speaker or touchscreen.
• If the rebuke occurs when connecting headphones - the audio jack is faulty.
• If the phone does not turn on after restarting (hangs on the logo), there may be problems with the eMMC memory.

⚠️ Warning: If your Xiaomi has fallen into water or been hit hard, don’t try to repair it yourself! corrosion on the board can cause permanent damage.

What can you do on your own?

• 🔍 Examine the charging connector for oxidation or contamination (clean with alcohol).
• 🔋 Try another charger and cable (unoriginal accessories can cause voltage surges).
• 📱 Reset the settings to factory (if the phone is still on).

6.Memory problems: why the smartphone reboots when the storage is full

Lack of internal storage space is another common reason Xiaomi is unstable, where when the memory is 90% or more full, the system starts to “choose”: it lacks space for cache, temporary files and background processes, which leads to:

• 🐢 Slowdown (lags, hangings).
• 🔄 Spontaneous reboots (especially when trying to install a new application).
• 📱 Application departures (such as Google Play or Camera).

How do you check?

Go to Settings. → The vault, if less free 5-10 GB is a critical value for MIUI.

How do I make room?

• 🗑️ Delete unnecessary files: Settings → Warehouse → Cleanup → Unnecessary files
• 📸 Move photos and videos to the cloud (Google Photos, Mi Cloud) or to PC.
• 🎵 Clear the app cache: Settings → Annexes → [select the application] → Warehouse → Clear the cache
• 📱 Use a memory card (if supported).
• 🔄 Turn off automatic saving of media files from messengers.

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MIUI It requires at least 10 percent of the internal storage space to work smoothly, and if there's less memory, the system starts to force the process to close, which can lead to reboots.

7. Viruses and malware: can they cause rebukes?

Although Xiaomi is equipped with built-in antivirus (Mi Security), they are not immune from malware penetration.

• 🔄 Rebooting the device to mask its activity.
• 📱 Blocking the screen with a demand for ransom.
• 🔋 Accelerated battery discharge (background mining activity).
• 📶 Mass mailing SMS pay-per-room.

Signs of infection:

• The phone is rebooted when connected to Wi-Fi/mobile.
• B Settings → Battery appears unknown processes with high consumption.
• On the screen appear banner ads outside the applications.
• Unknown applications are installed.

How to check and remove viruses?

1. Install Malwarebytes or Dr.Web Light and perform a full scan.
2. Check the list of installed applications in Settings → Applications for suspicious programs.
3. Disable installation from unknown sources in Settings → Privacy → Special permissions → Install unknown applications.
4. If the virus blocks access to settings, download to Safe Mode and remove the malware.

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Never install. APK-files from unreliable sources (torrents, third-party sites) even if the file is called an "official update" MIUI", It may contain a Trojan. All firmware download only from [en.miui.com](https://en.miui.com).

8.When to contact the service: signs of serious breakdowns

If you’ve tried all the techniques in this article, but Xiaomi is still rebooting on its own, it’s time to consider professional diagnostics.

• 🔥 Phone overheats to 70°C+ down-to-earth.
• 🔋 The battery swelled or deformed the body.
• 💧 On the board visible traces of corrosion or oxidation.
• 📵 The phone does not turn on after restarting (hangs on the logo).
• 🔌 Reboot occurs whenever you connect to a charging.
• 🖥️ Artifacts, stripes or flicker appear on the screen.

How much will it cost to repair?

Where do I repair it?

• 🏢 Xiaomi’s official service centers – a guarantee for work, but a high price.
• 🔧 Unofficial workshops are cheaper, but the risk of poor repairs.
• 📦 Self-repair – only if you have experience (e.g., replacing the battery with a Redmi Note 10 is relatively straightforward).

⚠️ Note: If your Xiaomi is still under warranty, don't open it yourself! This will void warranty.

FAQ: Frequent questions about Xiaomi reboots