How to check the heating of the smartphone Xiaomi: hidden functions, applications and temperature standards

Your Xiaomi is getting suspiciously hot and your battery is going down faster than usual? Overheating is one of the most common smartphone problems that can indicate both software failures and hardware malfunctions. In this article, you will learn how to accurately measure the temperature of all key components of the phone (processor, battery, screen), what values are considered normal for different models of Redmi, POCO What to do if the heat exceeds the permissible limits.

We will look at them as standard tools. MIUI, And there are hidden engineering menus, and there are third-party apps with advanced diagnostics, and we'll also look at why the temperature is above 50.°C when charging or playing can be critical for lithium polymer batteries, and how it affects the life of the device. If you notice that the phone is shutting down due to overheating or if you give a warning "Temperature is too high," here you will find solutions.

Method 1: Integrated tools MIUI (application-free)

Xiaomi hides temperature data in standard settings, but it can be found through the diagnostic menu. MIUI 12 and newer, including the Redmi Note 12, POCO X5, Mi 11 and other models.

To open the hidden menu:

1. Open the Phone app.
2. Enter the combination: ##4636### (on some firmwares it may not work – see the alternative below).
3. Select the Battery Information item.
4. Look at the Temperature line – here the current battery temperature in degrees Celsius is displayed.

If the code doesn’t work, try an alternative path:

• 📱 Go to Settings. → The phone.
• 🔧 Tap 5 times on the item Version MIUI (A notification will appear saying, “You have become a developer»).
• 🔍 Return to the main settings menu, open additionally → For developers.
• 📊 Find the Battery Monitor section – here will be a temperature chart.

Note: the built-in tools only show the temperature of the battery, not the CPU or other chips. Third-party apps will be required for a full diagnosis (see next section).

Method 2: Third-party applications for detailed monitoring

If you need to know the temperature of all components (CP, GPU, communication module, screen, standard tools MIUI It's not going to be enough. It's going to be a specialized utility:

Recommendation: For most Xiaomi users, the best choice is to use the app. AIDA64 — It shows the fullest possible information, including the temperature of each processor core. For example, on the Snapdragon 8 Gen 2 (in the Xiaomi 13 Pro), you can see the difference in heating between the performance and energy-efficient cores.

Example of data from AIDA64 for POCO F5 The game is called Genshin Impact):

• 🔥 CPU (body: 62°C
• 🔥 CPU (core 1): 71°C
• 🔥 GPU Adreno 730: 58°C
• 🔋 Battery: 43°C

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If the processor temperature is higher than 80°C, and batteries — 50°C, immediately close all applications and let the phone cool down. Prolonged overheating reduces battery life. 30-50%.

Method 3: Engineering menu (for advanced users)

The hidden engineering menu (Engineer Mode) provides access to low-level sensor data, including the temperature of all components. This method is suitable for models on Qualcomm Snapdragon processors (most Xiaomi) and requires caution - do not change the settings unless you are sure of their purpose!

Instructions for entry:

1. Open the Phone app.
2. Enter the code ##36446337# MTK) or #4636### for Snapdragon).
3. Go to the Hardware Testing section.
4. Choose Sensor or Thermal.

In the Thermal menu, you'll see a list of sensors with current values.

Thermal Zone 0 (CPU): 55°C




Thermal Zone 1 (Battery): 38°C




Thermal Zone 2 (GPU): 52°C




Thermal Zone 3 (Skin): 41°C (body temperature)

⚠️ Warning: Do not change the settings in the Thermal Configuration section! Incorrect settings can cause the phone to turn off at normal temperature or, conversely, ignore critical overheating.

Temperature standards for Xiaomi smartphones: when to sound the alarm?

Xiaomi does not publish official temperature standards, but based on the data of service centers and tests, the following permissible limits can be derived:

Features for flagships and budget models:

• 📱 Xiaomi 13 Ultra, Mi 12 Pro: due to the powerful Snapdragon 8 Gen 2 normal temperature under load – up to 65°C (CPU). Limit - 75°C.
• 📱 Redmi Note 11, POCO M5: Budget processors (Snapdragon 680, Helio) G99) warmed more - the norm is up to 70°C in games.
• 🔋 Batteries with capacity of 5000+ mAh (for example, in the Redmi Note 12 Pro)+) heats up to 45°C with fast charging is normal.

If the body temperature exceeds 45°C, and the batteries are 48.°C, MIUI automatically activates overheating protection:

• 🔄 Limits productivity CPU/GPU (trottilling).
• ⚡ Turns off fast charging.
• 📵 Blocks mobile communication (on models with Snapdragon) 888/8 Gen 1).
• 🔴 It displays a warning: "Temperature is too high. Close the apps».

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Battery temperature above 50°C is critical: every hour of this heating reduces battery life by 1-2%. At 60.°C begins irreversible degradation.

Xiaomi’s overheating causes: from harmless to critical

Overheating can be caused by both software and hardware problems, and let's look at the main causes by severity:

1. Programmatic reasons (resolved independently)

• 🎮 Games and heavy apps: Genshin Impact, Call of Duty Mobile, PUBG load GPU 90-100%, which leads to heating up to 70°C.
• 🔄 Background processes: apps like Facebook, TikTok or MIUI Optimizers can be downloaded CPU even in a folded state.
• 📥 System Update: Installation of Major Updates (MIUI 14 → MIUI 15) heats up the phone to 50–55°C.
• 🔋 Fast charging: HyperCharge technology (120W) or TurboCharge (67W) heat the battery to 45.°C.

2. Hardware causes (require repair)

• 🔋 Worn-out battery: After 500 charging cycles, the battery loses capacity and warms up more.
• 🛠️ Dried thermopaste: on models older than 2 years (Redmi Note 9 Pro, Mi 10) the thermal conductive composition loses its properties.
• 📡 Faulty module 5G/4G: defective Qualcomm chip X60/X65 may warm up 80°C.
• 💧 Moisture intake: Even after drying, oxidized contacts increase resistance and heat.

How do you determine the cause?

Check the temperature in plain (should be) <35°C)

Start the game - if the heat is high >70°C, the cooling problem

Turn off the mobile Internet – if the temperature has dropped, the communication module is to blame

Check out the battery wear in AccuBattery (health) <80% — change)-->

What to do if Xiaomi overheats: step-by-step solutions

If the temperature is higher than normal, follow the algorithm – from simple steps to complex ones.

1. Emergency measures (if the phone is hot right now)

• ❄️ Turn off your phone for 10-15 minutes and put it on a cool surface (not in the refrigerator!).
• 🔌 Turn off charging – fast charging heats the battery even when it’s off.
• 🚫 Close all applications through the recent → Close it all down.
• 🌑 Activate the aircraft mode to disable communication modules.

Programmatic corrections

• 🔄 Update. MIUI: New versions optimized energy consumption (check Settings) → Updating the system).
• 🗑️ Clear the cache: Settings → Memory. → Clear the cache.
• ⚙️ Turn off auto-run of unnecessary apps: Settings → Annexes → Auto-start.
• 🎯 Reset your graphics settings (for gamers): in Game Turbo, choose the balance between performance and heating.

Hardware solutions

• 🔋 Replace the battery if it is healthy <80% (Checked out at AccuBattery).
• 🧴 Update thermopaste: in the service center (Xiaomi Authorized Service).
• 🛡️ Install a cooling cover (e.g. Black Shark Cooling Backplate).
• 💨 Use an external cooler for games (connects through a USB-C).

⚠️ Warning: If after reset to factory settings (Settings) → Reset) temperature remains high, the problem is precisely hardware. Don't try to disassemble the phone yourself, it will deprive you of warranty!

How to prevent overheating Xiaomi: prevention

Compliance with simple rules will help to avoid overheating and prolong the life of the phone:

• 🔋 Charging: Do not use your phone while charging (especially for games); Remove the case when charging fast (improving heat sink); Avoid cheap cables, which increase resistance.
• 🌡️ Operation: Do not leave your phone in direct sunlight (even when it is off). Do not place it near heat sources (battery, heater). Use light themes — AMOLED-screens are less warm.
• 🎮 Games: Limit FPS In the game settings (e.g. 60 instead of 90). Activate Game Turbo mode in the game settings MIUI — It optimizes heating. Take breaks every 30-40 minutes.

For owners of flagships (Xiaomi) 13T, Mi 12S Ultra) is useful for setting up thermothrottle, which artificially limits heat performance, and you can do this through Performance Mode in the developer settings:

1. Activate Developer Mode (see Method 1).
2. Go to For Developers → Limitation of thermal power.
3. Choose Balanced or Energy Saving.

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The optimal temperature for battery durability is 20-35°C. Each +10°C above this range doubles the rate of battery degradation.

FAQ: Frequent questions about Xiaomi's heat