Why Xiaomi is warming up: a complete guide to eliminating overheating

Owners of Xiaomi, Redmi and Poco smartphones often face situations where the device’s body becomes noticeably warm or even hot.This can occur during charging, lengthy conversations, using a navigator, or running demanding games. While heating the processor is a natural physical process when electronics are running, excessive temperature rises can indicate software failures or hardware problems.

If your gadget is heated to a point where it is uncomfortable to hold, or if performance is drastically reduced by trottling, you need to take action. Ignoring symptoms can lead to battery degradation and motherboard failure. In this article, we will discuss the main causes of overheating and detailed instructions for their elimination.

First of all, you have to distinguish between normal and emergency modes. Short-term heating when you charge fast or update apps is the norm. However, if the device gets hot when you stand by or after resetting, this is a cause for concern. Let's figure out how to diagnose the problem and return the comfortable temperature to your smartphone.

The main reasons for overheating of the smartphone

Understanding the heat source is the first step to solving the problem: the processor (CPU) and the graphics chip (GPU) generate heat as a result of the passage of electric current. The more complex the calculations, the higher the power consumption and temperature. However, high load is not always to blame. Often the cause is a software failure that causes the system to run at the limit of possibilities without needing.

External factors also play a critical role: using a phone in direct sunlight or in a thick protective case prevents heat transfer; heat simply does not have time to dissipate into the environment, accumulating inside the case; this is especially true for models with a glass rear panel, which is less heat dissipation than metal counterparts.

And then you have to consider the battery, because over time, the lithium-ion battery wears out, its internal resistance increases, which leads to additional heat when it's charging and discharging, and if the phone's been around for a few years, it might be the main heat source, not the processor.

⚠️ Warning: If the smartphone heats up in the area of the camera or the upper part of the body during video shooting in the 4K, But if the heat comes from the bottom (where the battery is) in downtime, it's a sign of a malfunction.

For quick diagnostics, you can use built-in tools or third-party utilities to help determine which application consumes the most resources and causes heat load, often the culprits are background social media processes or heavy games.

Software Refrigeration Methods and Optimization

The easiest and safest way to lower the temperature is to optimize the MIUI or HyperOS operating system. Xiaomi has built-in tools to help manage resources. The first thing to do is use the Security app, which is pre-installed on all the brand’s devices.

Run a system scan and use the Cleanup feature, which not only frees up memory, but also ends background processes that could freeze and consume CPU resources, and you can activate the battery mode, which will limit the processor frequency and reduce heat.

If standard methods don't work, check the list of installed applications, uninstall or disable programs you don't use, and pay special attention to animated wallpapers and widgets on the desktop, which are constantly loading the GPU.

For more advanced users, the developer mode is available. You can limit the number of background processes. Go to Settings → Advanced Settings → For developers and find the item “Background Process Limit.” Setting a value of “No More than 2 processes” will help to significantly reduce the load on the system in the idle.

Setting up the Turbo game mode

Gamers are the main category of users facing overheating. Modern mobile games like Genshin Impact or PUBG Mobile require enormous computing power. To solve this problem, Xiaomi has a Game Turbo feature.

Not only does this mode speed up the launch of games, it also allows you to fine-tune the performance. In the Game Turbo settings, you can choose a Balanced or Energy Saving profile, which will reduce the maximum CPU frequency and, as a result, the body temperature, which is especially useful for long gaming sessions.

Also in game mode, you can turn off notifications and background synchronization so that the processor is not distracted by extraneous tasks. This reduces the overall load on RAM and CPU. If you notice that the phone is very warm in games, try to lower the graphics settings inside the application itself.

💡

Use an external cooler for your smartphone during long games, which is a physical cooling that is more effective than any software method and prevents trolling.

It’s important to understand that high graphics is a direct route to heating, and reducing the quality of textures and turning off the smoothing in the game settings can reduce the temperature by 5-10 degrees, with little to no impact on the comfort of gameplay.

Problems with charging and battery

The process of charging the battery is always accompanied by the release of heat. Quick Charge or HyperCharge technology used in Xiaomi involves the supply of high current, which physically cannot occur without heating. This is normal if the temperature is moderate.

However, if your smartphone is heating critically, check the cable and power supply you use. Using cheap, uncertified accessories can cause voltage surges and overheating of the power controller. Always use original cables or quality analogues from well-known brands.

Another common reason is that you use your phone while charging, because the screen and the processor are warmed by the work, the battery is warmed by incoming current, and the cumulative effect is overheating, and if you need to charge your device urgently, you better turn it off or put it on airplane mode.

Keep track of the connectors.Mud in the USB Type-C port can cause poor contact and sparkling, which also causes local overheating at the bottom of the smartphone.Make sure to clean the port carefully with a wooden toothpick or compressed air.

Hardware malfunctions and physical impact

If the software didn't work, maybe the problem lies inside the device. One of the most common hardware causes is dry heat paste. In smartphones, as in computers, a special composition is applied between the processor and the copper heat sink plate, and over time (usually after 2-3 years), it dries out and loses its properties, stopping to remove heat.

Replacing thermopaste is a procedure that requires electronic disassembly skills, and if you're not sure about your abilities, you should contact a service center, and disassembling yourself can damage the plumes or damage the water protection.

It's also worth checking if the case is deformed. If the phone falls, the heat-dissipating graphite film inside could be unstuck or damaged, in which case the heat is not transferred to the body to dissipate, but stays inside, overheating the components.

⚠️ Warning: Never put a heated smartphone in the refrigerator or freezer! a sharp temperature drop will cause condensation inside the case, which will cause a short circuit.

Another rare but possible cause is a malfunction of the battery itself: a bloated battery not only warms, but can be dangerous. If you notice that the back of the phone has started to recede or the screen is arching, stop using the device immediately.

When is the time to bring your phone to service?

There are a number of symptoms that indicate that self-repair is useless or dangerous: If the phone heats up to the point where a protective shutdown is triggered, or if a temperature warning appears on the screen, this is a serious signal.

Also, the reason for contacting specialists is the situation when the phone warms up in the modem area (usually the top third of the board) even without a SIM card, which may indicate a short circuit in the radio module or problems with the antenna.

Do not delay the visit to the service if, along with the heating, the following are observed:

• 📉 A sharp drop in autonomy (the phone is discharged for a long time) 2-3 hour).
• 🔄 Constant restarts or system freezes.
• 📉 Inability to charge the device above a certain percentage.
• 👃 The appearance of a specific chemical smell.

Timely diagnosis can save the motherboard, and it costs a lot less to replace a battery or heat paste than to sell a processor or buy a new smartphone, and remember that overheating reduces the life of all electronic components.

💡

If the heating is accompanied by a bloating battery or the smell of burning, immediately stop using the device and contact the service.

Frequently Asked Questions (FAQ)