How to effectively cool Xiaomi smartphone: from simple ways to hidden settings

Your Xiaomi is heating up to 50.°C when charging or playing? The screen gets hot and performance drops because of trottling? Overheating is one of the most common smartphone problems on Qualcomm Snapdragon and MediaTek Helio, especially in the budget models of the Redmi Note and the Redmi Note. POCO But do not rush to carry the phone to the service: in 90% of cases, the cause can be eliminated independently.

In this article — 12 proven ways to cool Xiaomi, from basic (remove the case) to advanced (configure the cores of the processor through the ADB). We will understand why specific models are warmed up (for example, Xiaomi). 12T Dimensity 8100-Ultra or Redmi Note 11 Pro+ Snapdragon on Snapdragon 695), And give instructions taking into account the features of the firmware MIUI. All methods tested on current versions of Android 13/14.

1. Why Xiaomi is warming up: top-5 The causes (and how to identify them)

Before you cool your phone, you need to understand the source of the overheating. Xiaomi has typical “weaknesses”:

• 🔥 Processor: Snapdragon chips 7xx/8xx And MediaTek Dimensity is a load-warming device (games, video rendering). 8 Gen 1 Xiaomi 12 Pro can warm up to 60°C in Genshin Impact.
• 🔋 Battery: Degraded battery (capacity) < 80%) heats up when charging. Check the settings → Battery → Battery status.
• 📶 Modem: weak signal 4G/5G It makes the module work at its limit. 10 and POCO M4 Pro.
• 🖥️ Screen: AMOLED-displays (for example, in Xiaomi 13 Ultra) warm up at maximum brightness.
• 🦠 Viruses/Background Processes: Some Applications (especially Cryptocurrency Mining) Are Loading CPU 100%.

To diagnose the cause:

1. Install. CPU-Z Check the temperature of the cores in the SoC section.
2. Launch DevCheck. → Thermal tab (norm: up to 45)°C in plain, up to 60.°C under load).
3. Open the Settings. → Special facilities → Show CPU loading (enable usage display) CPU real-time).

⚠️ Warning: If the temperature is above 70°C in plain (no games or charging), this may indicate a thermal paste malfunction or a short circuit on the motherboard.

2. Quick ways to cool Xiaomi (no root and indiscriminate)

If your phone is hot right now, use these methods:

• ❄️ Remove the case: even a silicone case reduces heat output by 15-20%, especially critical for models with a metal body (Xiaomi Mix 4, Black Shark 5).
• 🌬️ Blow the connectors: dust in USB-C And the speakers block the ventilation. Use a compressed air can or a soft brush.
• ☀️ Reduce the brightness of the screen: AMOLED-displays (Xiaomi) 12S Ultra is warmer IPS. Set automatic brightness or limit to a maximum of 70%.
• 🔌 Turn off charging: fast charging (HyperCharge) 120W Redmi Note 12 Pro+) It heats the battery. Go to wired charging. 18W wirelessly 10W.

Emergency method: Put your phone in the shade for 10 minutes (not in the fridge!) If you need to speed up the cooling:

1. Turn off the phone.
2. Place it between two ceramic plates (they remove heat better than plastic).
3. Point a fan at the body (but not ice air!).

3.Tune in. MIUI heat-reduce

MIUI It has hidden features that help control the temperature:

• ⚙️ Turn off unnecessary background processes: Go to Settings → Annexes → App management. Select Autorun and disable Autoboot for instant messengers, games and social media. Under Battery and Performance → Select Battery Mode Sett Balance (not Performance!).

Limit the modem's operation.

##4636## → Battery Information → Network setup → Set the “LTE only” network type (turns off power-intensive 5G).

Reduce. FPS play

1. Turn on the game mode in the notification curtain.
2. Choose Balance or Energy Saving (Limited) FPS 60).

Critical setting for Snapdragon 8xx: Turn off "Performance Improvement" in Settings → Additionally. → Laboratory MIUI. This function accelerates CPU, This causes overheating in Xiaomi 11T Pro and POCO F4 GT.

4. Advanced Methods: ADB and Engineering Menu

If standard methods do not help, you can manually limit the performance CPU through ADB (This is true for Xiaomi on Snapdragon. 888/8 Gen 1, clutter-sweeping.

Instructions for limiting processor cores:

1. Install Platform Tools on your PC.
2. Enable USB Debugging in Settings → About Phone → MIUI version (click 7 times, then go back to Additional → For Developers).
3. Connect your phone to your PC and execute the commands: adb shell su (if there is root) echo "0" > /sys/devices/system/cpu/cpu4/online echo "0" > /sys/devices/system/cpu/cpu5/online echo "0" > /sys/devices/system/cpu/cpu6/online echo "0" > /sys/devices/system/cpu/cpu7/online These teams are offline. 4 nucleus 8 (Only energy efficient will remain. Cortex-A55). Temperature will drop on 10–15°C, but performance in games will decline.

To return to the standard settings, perform:

echo "1" > /sys/devices/system/cpu/cpu4/online


...




echo "1" > /sys/devices/system/cpu/cpu7/online

Engineering menu (for experienced users):

• Enter the code ##36446337## (for MediaTek) or #4636## (for Snapdragon).
• Move to the MTK Engineer Mode → Hardware Testing → Thermal.
• Set Thermal Level to Level 1 (limit heating to 45)°C).

⚠️ Warning: Incorrect settings in the engineering menu may result in loss of warranty or failure of the camera/modem!

5 Cooling accessories: what really works

If the software methods don’t help, consider hardware solutions. We tested 5 popular accessories on Xiaomi Black Shark 5 Pro (the hottest smartphone in the line):

Lifehack for gamers: combine a fan-clip with a cooling case. K50 Gaming gives you a temperature drop of up to 25.°C in hourly sessions in Call of Duty Mobile.

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Before buying a cooling accessory, check compatibility with your Xiaomi model. For example, fans for Black Shark will not work for the Redmi Note due to different connectors.

6.When cooling doesn't help: hardware malfunctions

If the temperature is above 60°C in simple, and all the above methods did not work, the problem may be in the:

• 🔋 Battery: bloated or worn-out battery (capacity) < 70%) heats up at the slightest load. → Battery → Battery status.
• 🛠️ Thermal interface: dried thermopaste between the processor and radiator (typical for phones over 2 years old).
• 🔌 Charging port: oxidized contacts USB-C cause short circuits and heat.
• 📡 Antenna module: damaged antenna 5G overheating when searching for a network.

How to diagnose:

1. Check the phone for battery bloating: put it on a flat surface and spin it. If the body is "playing," the battery is swollen.
2. Look at this. USB-C port for oxidation (green coating) or bent contacts.
3. Run the antenna test: enter ##4636## → Network information. If the signal 4G/5G leaping between "-120 dBm" and "-80 dBm", module malfunctioning.

The cost of repairs in the service center Xiaomi:

• Thermopaste replacement: 1500–2500 ₽.
• Battery replacement: 3000–6000 ₽ (original).
• Charging port repair: 2000–4000 ₽.

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If the phone is heated to 70°C+ and turns off on its own, take it to the service immediately, and use it further may cause the battery to burn!

7.Overheating Prevention: 5 Rules for Xiaomi

To avoid overheating in the future, follow these guidelines:

• 🔄 Update. MIUI: In newer versions, they optimize energy consumption. MIUI 14 added "Deep sleep mode" for background processes.
• 🚫 Do not use cheap charging: only original Xiaomi power supplies or certified (for example, Baseus) 65W).
• 🌡️ Control the ambient temperature: Do not leave your phone in direct sunlight (already when you are in the sun). +30°C the risk of overheating increases by 40%).
• 🎮 Limit gaming sessions: play no longer than 1.5 hours in a row. MIUI temperature monitoring.
• 🔋 Calibrate the battery: once every 3 months, discharge the phone to 0% and charge to 100% without interruptions.

Myths about Xiaomi overheating:

• ❌ "Closing apps from multitasking 'cools the phone' is wrong. Android manages memory itself, and forced closure only increases the load on the phone. CPU.
• ❌ "The refrigerator will cool the phone quickly, dangerous, and the temperature drop causes condensation inside the case.
• ❌ "Shutdown Bluetooth/Wi-Fi It's going to reduce heat, very little. These modules are going to consume. < 5% energy CPU.

FAQ: Frequent questions about Xiaomi overheating