Have you noticed that your Xiaomi is warming up more than usual? the case heats up even on simple tasks, and sometimes the temperature reaches such values that holding a smartphone in your hands becomes uncomfortable. This is not always a sign of failure – often the problem lies in the software settings or the features of the processor. Snapdragon/Mediatek. But overheating cannot be ignored: it shortens the battery life and can lead to sudden shutdowns.
In this article, we will discuss the 7 main causes of Xiaomi smartphones overheating (including the Redmi Note 12 Pro+, POCO F5, Mi 11 Ultra and others), learn how to diagnose the problem with hidden MIUI tools, and give step-by-step instructions for eliminating.
Spoiler: 80 percent of the time, you can fix the problem without going to the service center, but there are also critical situations, like when the phone heats up to 60°C+ when charging (sensor data via the engineering menu), which is already a risk of damage to the internal components. Read on to understand when you can handle it yourself and when it's time to carry the device for repair.
Background processes and “gluttonous” applications
The most common cause of overheating is uncontrolled application activity in the background, and even if you haven't run a game or a heavy app, some services can be loading the processor.
- 📱 Social networks (Facebook, TikTok, Instagram) – constantly synchronize data and show notifications.
- 🎮 Active Background loading (Genshin Impact, PUBG Mobile – can “hang” in memory and consume resources.
- 🔄 Auto Update Apps via Google Play or Mi App Store.
- 📍 Geolocation services (Google Maps, Yandex.Navigator, Uber) - use GPS-module that is very hot.
How to check which app is to blame:
- Open Settings → Battery → Battery Use.
- Look at the consumption chart over the last 24 hours. Apps that are eating up" >10% of the charge is likely to be loaded by the processor.
- Go to Settings → Applications → Application Management and sort by energy consumption.
Decision:
- 🚫 Limit background activity: Settings → Annexes → [Select the application] → Battery → Limit background activity.
- ❄️ Enable Power Saving Mode for Individual Applications.
- 🗑️ Remove or “freeze” unnecessary programs (use) ADB App Freezer app).
💡
If your phone is warming at night, check your scheduled on/off settings in Settings → Additional → Power Planner. Sometimes your smartphone wakes up for updates and overheats.
Games and hard tasks: why Xiaomi is turning into a hothouse
Xiaomi models on Snapdragon 8 Gen 2 (Redmi K60 Pro, Xiaomi 13 Pro) or Dimensity 9000+ (POCO F5 Pro) processors are designed for high loads, but even they can overheat in games.
- 🔥 Long gaming sessions (more than 1 hour) – the processor operates at maximum frequencies.
- 📱 Incorrect graphics settings – for example, the enabled mode 120 FPS low-cooled.
- 🔋 Charging during the game - at the same time there is a high load on the processor and battery.
How to check the temperature in real time:
- Install the AIDA64 or CPU Monitor app.
- Start the game and monitor the sensors. The normal temperature of the processor is up to 50-55 ° C. If above 60 ° C, it is overheating.
| Temperature, °C | Status. | Recommendations |
|---|---|---|
| 30–45 | Norma. | Nothing to do. |
| 45–55 | Increased load | Close the background applications |
| 55–65 | Overheating | Reduce the schedule in the game, take a break. |
| 65+ | Critical overheating | Turn off your phone immediately, let it cool down. |
Solutions for gamers:
- ⚙️ Lower your graphics settings in the game (turn off ultra-shadows, lower) FPS 60).
- 🔌 Do not play while charging – this doubles the load on the system.
- 🧊 Use a cooling case or fan stand (such as Black Shark FunCooler Pro).
💡
If the phone turns off at temperatures above 65°C, it's a MIUI protective mechanism. Don't turn it on right away: wait 10-15 minutes until it cools down.
3.Battery problems: When the battery is to blame for heating
The battery is one of the hottest components of a smartphone, and if it's worn out or damaged, it'll warm up even when it's not.
- 🔋 The phone heats up when charging (especially quickly - up to 40-50).°C in 10 minutes).
- 📉 The battery is discharged by more than 1% per minute in idleness.
- 🔌 The charge is jerky (fast, then slow).
- 💥 The body is swelling (check if the phone is on the table).
How to check the status of the battery:
- Enter the dialer code ##4636##.
- Select Battery Information and see Battery Health.
- Or install the AccuBattery app, which will show the real capacity and degree of degradation.
What do the numbers on the engineering menu mean?
What to do:
- 🔄 If we wear it. >30%, replace the battery (cost for Xiaomi – from 1,500 to 3,000) ₽).
- 🔌 Use original chargers (power no higher than the phone supported).
- ☀️ Do not leave your phone in the sun or near heat sources.
⚠️ Warning: If the battery is swelling, do not try to pierce or bend it - this can lead to fire!
4. Failure of the charger or cable
Cheap or damaged chargers are a common cause of overheating.
- 🔌 Give unstable voltage, which is why the smartphone power controller works at the limit.
- 🔥 Overheating on your own (check the power supply – if it’s hot, it’s a bad sign).
- 📉 Charge the phone slower than the original adapter, which is why the process is delayed and heats the battery.
How to check the charger:
- Connect your phone to another charger (preferably the original one from Xiaomi).
- If the heating has decreased, the problem is in the power supply or cable.
- Check the cable for insulation damage or inflection.
Recommendations:
- 🔌 Use only certified Quick Charge or Turbo Charge chargers (this is usually the case for Xiaomi). 33W, 67W, 120W).
- 🔄 If your phone supports wireless charging, don’t use it all the time – it heats the battery harder than wired charging.
- 📱 Turn off charging when you reach 80-90% if you don’t need full capacity.
☑️ Checking of the charger
5. Software errors and MIUI failures
Sometimes, firmware bugs or system process conflicts cause overheating, especially after MIUI updates.
- 📱 The phone warms up even in standby mode (without running apps).
- 🔄 There are spontaneous reboots.
- 📉 B Settings → Battery is seen unreasonably high consumption of system processes (Android System, MIUI Daemon).
How to fix it:
- Restart your phone in Safe Mode (press the power button → long tap on "Switch off" → "Safe Mode"). If the heat is gone, the third-party app is to blame.
- Reset the cache of system applications: Settings → Applications → Application management → [Three dots] → Reset the cache of all applications.
- Update MIUI to the latest version or reset to factory settings (pre-backup!).
⚠️ Note: If the phone started warming after the update MIUI, Check the forums (for example, 4PDA Mi Community – This may be a massive problem, and Xiaomi is already releasing a patch.
Physical damage and dust inside the shell
If the phone fell, was exposed to moisture or just operated for a long time without cleaning, the cause of overheating can be:
- 🧹 Dust in the cooling system – clogs heat pipes and radiators.
- 💧 Oxidation of contacts after moisture hits (even if the phone hasn't sunk, high humidity can harm).
- 🔧 Thermopaste dump between the processor and the radiator (relevant for flagships like Xiaomi) 12S Ultra).
- 📱 Cracks on motherboard after falling.
How to diagnose:
- Light a flashlight in speakers and connectors – if dust is visible, it must be removed.
- Check if the body creaks when pressed - this may indicate damage inside.
- If the phone only overheats in a certain position (for example, lying on its side), it is a sign of poor cooling contact.
Decisions:
- 🧹 Clean connectors and speakers with a soft brush or compressed air (do not use wet wipes!).
- 🔧 If you suspect a dump of thermal paste - contact the service (self-repair is fraught with damage to the board).
- 💧 If the phone was in contact with water, do not turn it on – immediately carry it to repair.
7. Viruses and malware
Malware can stealthily mine cryptocurrency or send your data to servers, loading the processor.
- 📱 Phone warms up for no apparent reason (no games, heavy apps).
- 📉 Unexplained traffic consumption (check in Settings) → SIM cards and mobile networks → Using traffic).
- 🔋 Quick discharge even in standby mode.
- 📲 Appearance of unfamiliar apps on the menu.
How to check and remove viruses:
- Install antivirus (Dr.Web, Kaspersky, Malwarebytes) and perform a full check.
- Check the list of installed applications: Settings → Apps → App management. Remove suspicious ones.
- If the antivirus does not find anything, but the symptoms remain - reset to factory settings.
⚠️ Note: Some viruses disguise themselves as system applications (e.g. com.android.system). If you are not sure, you should consult a specialist.