Why Xiaomi Redmi is overheating and what to do

The situation when your Xiaomi smartphone suddenly gets hot is familiar to many owners of the brands Redmi and POCO. The case of the device, especially in the upper part next to the camera, can heat up to uncomfortable temperatures, causing concern for the safety of electronics. This phenomenon is often accompanied by a slowdown in the interface, a drop in the brightness of the screen or a sudden stop charging.

In most cases, overheating of the processor is a protective reaction of the system to intense load or software failure, not a sign of a fatal failure. However, you can not ignore consistently high temperatures, since constant heat stress can significantly reduce the battery life and lead to detachment of the plumes.

In this article, we’ll break down the main reasons why Xiaomi Redmi is warming up and provide step-by-step instructions to fix the problem.We’ll look at both software optimization techniques and physical cooling methods to keep your gadget running smoothly again.

The main reasons for the overheating of the smartphone Xiaomi

The first thing to understand is that the phone is a complex computing device, and it's natural to heat it when it's running, but if the temperature of the case becomes palpable even in the plain, it's worth looking for the culprit. Most often the heat source is the central processing unit (SoC), which takes over the data processing, or the power controller.

One of the main reasons is the background activity of applications, and many programs, even if you're not using them right now, continue to consume resources, update content, or use geolocation, which puts a constant strain on system resources, forcing the processor to work in a strengthened mode.

⚠️ Warning: If the phone heats up immediately after turning on, even without running apps, it could indicate a system failure or malware infection that mines the cryptocurrency in the background.

Also, you have to consider external factors: direct sunlight, being in a case of dense synthetics or using a navigator in a hot car creates the thermos effect, in which the heat sink is disturbed, and the internal temperature rises faster than it can dissipate.

Programmatic methods of solving the problem

The first step to combat overheating is software optimization, the MIUI or HyperOS operating system has built-in tools to monitor and manage power consumption, and the first step is to clean up the background and remove heavy applications that you haven’t used in a long time.

Check the battery usage statistics to identify "gluttonous" programs. Often it turns out that a social network or messenger consumes a disproportionate amount of resources due to a code error or synchronization failure. Deleting the cache or reinstalling such an application often solves the problem.

It is also important to check for system updates. Xiaomi engineers regularly release patches that fix optimization errors that can cause overheating. Go to Settings → About Phone → MIUI version and check the relevance of the software.

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Use the built-in Security → Cleanup → Cooling app to automatically shut down processes that heat the phone.

MIUI setup and hidden functions

The MIUI shell offers a number of settings that can both help and harm in terms of thermoregulation, such as the Memory Extension feature, which uses part of the internal storage as RAM, can increase the load on the memory controller and cause additional heating.

Pay attention to the refresh rate of the screen. If your Redmi supports 90 Hz or 120 Hz, running constantly in this mode loads the GPU. Switching to 60 Hz in the Settings menu → Screen → Update frequency can significantly reduce heat generation.

⚠️ Warning: Don’t use third-party cooler apps from Play Market. They often just kill processes that the system immediately starts again, putting even more strain on the processor.

It is also recommended to disable unnecessary communication functions. 5G In the zone of insecure reception, the modem makes it work at the limit of its capabilities. 4G/LTE or turn on flight mode if communication is not required.

The Impact of Games and Heavy Applications

Modern mobile games require enormous computing power. When you run a heavy shooter or strategy game on Xiaomi Redmi, the processor goes into maximum performance mode, at which point heating to 40-45 degrees is the absolutely normal operating temperature for a silicon crystal.

But if the phone starts trolling, or the game goes out in 10 minutes, the cooling system is not working, and in such cases, the reduction of graphical settings within the game helps, and the reduction of texture and shadow detail makes it much easier for the graphics accelerator to work.

For avid gamers, there are special MIUI-enclosed game modes that redistribute resources in favor of the game, but this can also lead to more intense heat.If you play for a long time, it is recommended to remove the protective case to improve heat transfer.

Problems with charging and battery

The technology used by Xiaomi, Quick Charge or HyperCharge, involves the transmission of large currents, which inevitably causes the battery and the power controller to heat up, is a physical law, and it cannot be completely avoided.

However, if the phone warms to a point where it hurts to hold it, or the charge stops by 80%, it's a sign of malfunction, and it could be a poor cable, a damaged charging port, or a degradation of the battery itself.

Using your phone while charging is a surefire way to overheat it, the screen and the processor generate heat, the charging adds to it, and in sum, it gives you critical values, so if you need to charge the device urgently, you better turn it off or put it into flight mode.

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Heating above 45 degrees when charging without using a phone is an excuse to replace the cable or power supply with the original one.

Physical Refrigeration and Care Techniques

If the software didn't work, we're going to go to physics, and the easiest and most effective way is to remove the case, and many silicone and plastic cases work like a thermal insulator, keeping the heat from escaping from the smartphone case into the atmosphere.

During the hot season, try not to leave your phone in the sun, especially on the torpedo of the car. Direct sunlight heats the body faster than the processor and can cause the battery to bloat. Also avoid using the phone in high humidity and dust, as contaminated speakers and ports worsen ventilation.

In emergency cases, you can gently wipe the back with a wet (not wet!) wipe. Evaporation of water will help to quickly relieve surface heat. However, never put an overheated phone in the refrigerator or freezer. A sharp temperature drop will cause condensation inside the case, which is guaranteed to short circuit and corrosion of the board.

When is the time to bring your phone to service?

There is a fine line between software heating and hardware malfunction. If your Xiaomi Redmi is warming up at the top (where the processor is) even when it's off or immediately after turning on, it's a worrying symptom.

Frequent spontaneous reboots, the appearance of artifacts on the screen or the smell of burning are direct indications of an immediate call to the service center, perhaps requiring a replacement heat pad, repair of the power chain or a replacement battery.

⚠️ Warning: Battery bloating (when the back cover starts to move or the screen bulges) is a fire hazard. This device cannot be charged and used, it must be disposed of immediately.

Don't try to disassemble the phone yourself if you don't have experience.In modern Xiaomi smartphones, the battery is glued, and a careless autopsy can damage the plume or the battery itself, making repairs significantly more expensive.

FAQ: Frequently Asked Questions