Why Xiaomi phone is warming: causes and solutions to the problem of overheating

Have you noticed that your Xiaomi is getting hotter than usual? It may be during gaming, charging, or even resting. Overheating is a common problem that can indicate both temporary failures and serious malfunctions. In this article, we will discuss all the possible reasons why the Xiaomi phone is warming up (including the Redmi, POCO and Mi models), and give specific recommendations for fixing them.

It is important to understand that the normal operating temperature of a smartphone is from 30 ° C to 45 ° C. If the case heats up to 50 ° C and above, this is already a cause for concern. Especially dangerous for the battery - it can shorten its life or even disable. Next, we will look at how to diagnose the problem and what to do in each case.

1. Natural causes of heating: when it is normal

It is not always the heat of the Xiaomi phone is a sign of malfunction, there are situations when the temperature rise is due to the operation of components:

• 🔋 Charging is especially fast (from the 30W Or wireless. The processor and the power controller are active, causing heat.
• 🎮 Games and heavy apps: Snapdragon 8 Gen 2 or Dimensity 9000 models can be warmed to 45°C for long periods of load.
• 📷 Video recording in 4K/8K Or long-term camera use: the matrix and the processor handle a large data stream.
• ☀️ Heat or direct sunlight. Ambient temperature above 30.°C automatically increases the heating of the device.

In these cases, the heating is usually temporary and not critical, but if the phone warms even in simple (for example, when viewing text in messengers) or the temperature exceeds 50 ° C, this is a reason for diagnosis.

2. Program causes of overheating: viruses, background processes, updates

About 40 percent of overheating is caused by software failures, and let's look at the main ones.

• 🤖 Background and heavy applications: Some programs (e.g. Facebook, TikTok, poor optimization games) can load 100% of the processor even when folded down.
• 🦠 Viruses and malware: Cryptocurrency miners or spyware are actively using the resources of the phone.
• 🔄 Failures after update MIUI. Incorrect firmware can cause increased power consumption.
• 📱 There's too many widgets and animations. MIUI with many effects loads the graphics processor.

How to check:

1. Open Settings → Battery → Battery Use and see which applications consume the most power.
2. Run Settings → Applications → Permissions → Autostart and disable autostart for unnecessary programs.
3. Check your phone for viruses using Google Play Protect or Dr.Web.

Disable auto-run of unnecessary applications |

Clear the cache in Settings → Storage |

Update all apps in Google Play|

Disable animations in Settings → Special facilities → Delete animations-->

⚠️ Note: If the phone started warming up immediately after the update MIUI, Try to revert to the previous version through Settings → The phone. → Updating the system → Three points. → Select the service pack. Download the old firmware from the official Xiaomi website.

3. Hardware problems: battery, processor, cooling system

If the software methods didn't work, the problem could be hardware.

Metal-based models (such as Xiaomi Mi 11 or Black Shark) are particularly vulnerable to overheating, as metal conducts heat better, and devices are also at risk after falling or getting moisture — even if there is no external damage, internal contacts may have been affected.

4.Overheating when charging: why it happens and how to avoid

One of the most common complaints of Xiaomi users is that the phone warms up during charging.

• ⚡ Unoriginal charger: Cheap adapters don't meet the Quick Charge or HyperCharge standards, causing the power controller to overheat.
• 🔌 Damaged cable. Fractured wires or oxidized contacts increase resistance and release heat.
• 🔋 Fast charging at the limit of what's possible. Supported models 120W (Xiaomi 12 Pro, Black Shark 5 Pro can heat up to 50°C with intensive charge.
• 📱 Using your phone while charging. Playing and charging at the same time create a double load.

Recommendations:

• Use only original or certified chargers (e.g. Xiaomi GaN Charger).
• Remove the case while charging - it can block heat transfer.
• Do not play heavy games or run resource-intensive applications while charging.
• If the phone is warming up even with the original charger, try turning on Optimized Charging mode in the battery settings.

💡

If your Xiaomi supports wireless charging, use it as an alternative – it usually heats your phone less than wired charging (but charges longer).

5. Gaming overheating: how to lower the temperature during games

Gamers on the POCO F3, Redmi K50 Gaming or Black Shark often experience overheating due to the high performance of these models.

1. Reduce the graphics settings in the game. Switch from Ultra HD to HD and turn off the anti-aliasing.
2. Enable Performance Mode in Settings → Special Features → Game Mode (choose the balance between performance and heating).
3. Use a cooler. For intense sessions, an external fan (such as Black Shark FunCooler Pro) will do.
4. Close the background applications through Settings → Applications → Launched.

Models with the Snapdragon 888/8 Gen 1 (such as the Xiaomi 11T Pro) are characterized by "trottling" - automatic performance decline when overheated. If you notice a sharp drop in FPS in the game, this is a sign that the phone is trying to cool down.

• Take a break for me. 10-15 minute.
• Check if the cover is blocking the vents (if any).
• Put the phone on a cooling stand (for example, with an aluminum base).

💡

If a game is constantly overheating, check its optimization for your CPU. Some titles (such as Genshin Impact) are poorly adapted for MediaTek Dimensity, which leads to overload.

6.Local heating: what to do if only one part of the phone is warming

Sometimes the phone doesn't warm evenly, but in a certain area, which helps to diagnose the problem more accurately.

• 📶 The upper part (antenna) – active use of mobile Internet (especially mobile Internet) 5G) or wifi.
• 🔋 The bottom part - problems with the battery or charging port.
• 🎮 Center of the back cover – overheating of the processor or graphics chip.
• 📷 Camera area – long-term video shooting or night mode use.

If local heating is accompanied by other symptoms:

• Vibration or cracking – the plume may have moved or the internal component may have been damaged.
• Loss of signal during heating of the upper part - malfunction of the antenna module.
• Spontaneous reboots – the thermal protection of the processor is triggered.

⚠️ Note: If the Xiaomi phone is warming locally in the Sim card area, this may indicate contact oxidation or communication module malfunction.Do not try to clean contacts yourself - contact the service, as there is a risk of damage to the antenna.

7.Diagnosis of overheating: How to check phone temperature

To understand exactly how critical overheating is, you need to measure the temperature of the components, and you can do this in a number of ways:

1. Using the engineering menu: ##4636### Select Battery Information - it will indicate the temperature in degrees Celsius.
2. Using applications: AIDA64 (shows the temperature of the processor, battery, chipset); CPU Monitor (traces the load on the cores in real time); AccuBattery (monitores the state of the battery).

Tactile:

Normal readings:

• In plain: 30-35°C.
• Charging: up to 40°C.
• In games: up to 45°C (short-term to 50°C).
• Above 50°C, critical overheating.

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

Not all problems can be solved by yourself. Contact Xiaomi Service Center if:

• 🔥 Phone heats up to 60°C and higher (can be burned).
• 💥 The battery is swelling (the back cover is raised).
• ⚡ The phone does not turn on after overheating or spontaneously turns off.
• 📉 The battery is discharged for 1-2 hourly with minimal use.
• 🛠️ Artifacts appear on the screen (stripes, flickering) when heated.

The cost of repairs in official Xiaomi services (example for Moscow, 2026):

• Battery replacement: 1500–4000 ₽ (model-wise).
• Diagnostics of the cooling system: 500–1000 ₽.
• Replacement of the charging controller: 2000–3500 ₽.
• Repair after moisture: from 3000 ₽.

⚠️ Note: If your Xiaomi warranty, do not open the case yourself - this will void the warranty.

FAQ: Frequent questions about Xiaomi overheating