Xiaomi phone is very warm: 10 proven ways to eliminate overheating

Your Xiaomi (or) Redmi/POCO) Is it hot like an iron, and the battery goes down in a matter of hours? Overheating is one of the most common problems of the brand's smartphones, but it's not always related to breakdown. 80% In this article, we will discuss why Xiaomi phone is warming, how to diagnose the problem and what to do depending on the situation - from the banal cleaning of the cache to replacing the thermal paste.

First, it is important to understand: the normal operating temperature of the smartphone processor is from 30 to 45°C. At intense loads (games, video shooting) 4K, charging) it can rise to 50-55°C is acceptable, but it requires attention. If the case is heated above 60,°C, and the phone turns off from overheating or shows a warning "Temperature is too high," it's time to act.

1.The main reasons for Xiaomi overheating: from software failures to hardware problems

Overheating of a Xiaomi smartphone is rarely an accident – usually a combination of several factors. Let’s consider the key reasons, breaking them down into software (which can be fixed yourself) and hardware (require repair).

Among the programmatic reasons are the following:

• 🔥 Background processes and viruses: applications that consume resources in hidden mode (especially cryptocurrency miners or spyware).
• 🎮 Games and heavy apps: Genshin Impact, Call of Duty Mobile or PubG at maximum graphics settings heat the processor to 70-80°C.
• 🔄 Cyclical Service Reboot: Miui.analytics, com.xiaomi.midrop or Google Play Services.
• 📱 Outdated firmware: bugs in MIUI (Especially in versions 12-14) can cause the cores of the processor to freeze.

Hardware causes are more common on phones older than 2-3 years:

• 🔋 Battery wear: Bloated battery presses on motherboard, disrupting heat sink.
• 🛠️ Dry thermopaste: on Snapdragon processors 8 Gen 1/2 or Dimensity 9000 This is critical - the temperature rises 15–20°C.
• 📡 Module problems 5G/Wi-Fi: Qualcomm's faulty chip X65 or Mediatek M70 Even in standby mode.
• 💧 Moisture intake: oxidation of contacts on the board worsens thermal conductivity.

2.How to check the temperature of the Xiaomi processor: hidden menus and apps

Before you take action, you need to know exactly what the temperature of your smartphone is. MIUI There is no built-in temperature sensor in the interface, but there are several ways to get data:

Method 1: Secret engineering code (works on most models) Xiaomi/Redmi/POCO):

1. Open the Phone app.
2. Enter the combination: ##4636###.
3. Select Battery Information – there will be a Temperature string (in degrees Celsius).

Method 2: Monitoring apps. Install one of these apps from Google Play:

• 📊 AIDA64 (It shows the temperature of the processor, battery, chipset).
• 🌡️ CPU Monitor (tracks the load on the cores in real time).
• 🔋 AccuBattery (analyzes the state of the battery and its heating).

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If the processor temperature is above 65°C and batteries above 45°C, immediately stop using the phone and let it cool off when off.

Method 3: Diagnostics through ADB (Connect your phone to your PC and execute the command:

adb shell dumpsys battery

In the conclusion, find the temperature line - this is the battery temperature in tenths of a degree (for example, 340 = 34.0°C).

3. Xiaomi's software cooling methods: from cleaning the cache to turning it off 5G

If overheating is caused by software, these methods will help reduce the temperature by 10-20°C indiscriminately.

3.1. Close background processes and optimize autoboot

Many apps continue to run in the background even when you're not using them.

1. Go to Settings → Applications → Application Management.
2. Sort by Battery Use and close high-consumption apps.
3. Turn off auto-start for unnecessary programs: Settings → Battery → Auto-start.

3.2. Disconnect unnecessary connections

Modules. 5G, Wi-Fi 6 and Bluetooth 5.2 heat up a Snapdragon or Mediatek chip a lot:

• 📶 Switch to switch to 4G (LTE) In Settings → SIM-maps and mobile networks → Type of network.
• 📡 Disable Wi-Fi and Bluetooth if not in use.
• 📍 Turn off geolocation (especially for applications like Google Maps or Yandex.Navigator).

3.3 Reset the network settings

Sometimes the modems will malfunction when they overheat.

1. Go to Settings → Memory and backups → Reset settings.
2. Select Network Settings Reset (does not delete data, only network settings).

Close background annexes|Shut down. 5G and Wi-Fi|Reset the network settings|Clear the cache MIUI|Update firmware-->

4 Hardware methods: when to open the phone

If the software didn't work, the problem is hardware. Let's look at the most common hardware malfunctions and how to fix them.

Replace the heat paste on the processor

Thermopaste on Xiaomi chips dries up after 1.5-2 years, especially on flagships like Xiaomi 12 Pro or Redmi. K50 Gaming, signs:

• The phone warms up even in simple (for example, when watching a video).
• The temperature of the processor rises to 70°C in 5-10 minutes of play.
• The body is heated unevenly (hot at the top).

To replace the thermal paste, you will need:

• 🔧 Set of screwdrivers (star) T3–T5).
• 🧴 Thermopasta (Arctic) MX-6 Or the Thermal Grizzly Kryonaut).
• 🔥 Dryer or infrared station for heating glue.

⚠️ Note: Do not use liquid metal (e.g. Coollaboratory Liquid Ultra) without experience - if applied incorrectly it can close contacts on the board.

Checking and replacement of the battery

The bloated battery not only warms itself, but it also presses on the motherboard, worsening the heat sink.

• The body of the phone is curved in the middle (especially noticeable on the Redmi Note 10 Pro or POCO X3).
• The battery is discharged in 2-3 hours with minimal load.
• The phone spontaneously turns off when charged 30-50%.

Check the battery status by using ##6484## (on some models) or in the AccuBattery app, and if the battery capacity has dropped below 70% of its nominal capacity, the battery should be replaced.

⚠️ Warning: Don't use cheap batteries of unknown brands - they can not only fail quickly, but also ignite when charging. Buy only original batteries or certified analogues (Camelion, Remax).

5.Overheating while charging: why Xiaomi is heating up from the charger

If the phone is only warming up while charging, the problem may be:

• 🔌 Non-original charger (especially with power above 33 watts).
• 🔋 Damaged cable (furnished insulation or oxidized contacts).
• 📱 Fast charging (HyperCharge or Turbo Charging technology heats the battery to 45-50)°C).
• 🔄 Background processes (if games or updates are running during charging).

How to reduce heat during charging:

1. Use the original charger (for example, for Xiaomi 13 Pro – 120 watts unit, for Redmi Note 12 – 33 watts).
2. Charge your phone in aeromode (disables communication modules, reducing the load).
3. Do not use your phone while charging (especially for games or videos).
4. Remove the cover - it can block the heat sink.

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The optimal charging temperature is 20-35°C. If the battery is heated above 40°C, turn off the charging and let the phone cool down.

6. Overheating in games: how to reduce the load on the processor

Games like Genshin Impact, Honor of Kings, or Call of Duty Mobile are making the Snapdragon 8 Gen 2 or Dimensity 9000 processor run at its limit, and temperatures can reach 75 to 80 as a result.°C. FPS It's down to 30 or 40, so you can avoid it:

6.1 Set up the graphics in the game

Reduce resolution and detail:

• In Genshin Impact: Set 60 FPS, Medium graphics settings, disable Shadows and Particle Effects.
• In Call of Duty Mobile: Select Low or Balanced Settings, turn off Dynamic Shadows.
• In PubG Mobile: Install Smooth + Extreme instead of Extreme HDR + Ultra.

6.2.Use the Game Turbo

V MIUI There is a built-in mode for games:

1. Open Settings → Special features → Game Turbo
2. Include Performance Optimization and Cooling CPU.
3. Add the game to the list of the game space for automatic optimization.

Install a cooler

For intense gaming sessions, suitable:

• 🧊 Fan cooler (for example, Black Shark FunCooler Pro – reduces the temperature by 10-15)°C).
• ❄️ Liquid radiator (e.g. Cooler Master Mobile Cooling Pad).
• 🧲 Magnetic radiator (stick to the back cover, removes heat passively).

7.When to contact the service: signs of a serious breakdown

If none of the methods worked and the phone continues to warm, you may need professional repairs.

• 🔥 The phone turns off at a temperature below 60.°C (emergency shutdown triggered).
• 💥 Artifacts appear on the screen (stripes, flickering) when heated.
• 🔋 The battery swelled (see by the deformation of the case or the gap between the screen and the frame).
• 📡 The phone does not catch the network or constantly restarts (modem malfunction is possible).
• 💧 There was moisture or a fall from a height.

The average cost of repairs in official Xiaomi services:

⚠️ Warning: Don't trust repairs to informal workshops unless they provide a guarantee for work. Cheap repairs can be even more problematic (e.g., after replacing the thermopaste with an artisanal method, the processor can overheat even more).

8. Prevention of overheating: how to prevent the problem

To prevent your Xiaomi from turning into a “pocket stove”, follow these recommendations:

• 🔄 Regularly update the firmware (in new versions) MIUI Correct bugs that cause overheating).
• 🧹 Clean the cache once a month through Settings → Memory. → Cleanup.
• 🔋 Do not discharge the battery to 0% and do not charge to 100% (optimum range is 20–80%).
• ☀️ Avoid direct sunlight (for example, don’t leave your phone on a car torpedo).
• 📦 Use quality perforated covers for better heat exchange.

Also avoid:

• ❌ Simultaneous charging and gaming (this doubles the battery and processor load).
• ❌ Use of cheap powerbanks (they can give unstable voltage).
• ❌ Install custom firmware without optimization for your model.

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Regular prevention prolongs the life of the battery by 30-40% and reduces the risk of overheating by 2 times.

FAQ: Answers to Frequent Questions About Xiaomi Overheating