Xiaomi phone heats up: what to do and how to eliminate overheating

The situation when the Xiaomi phone is heated is familiar to many owners of devices of this popular Chinese brand.Smartphones of the Redmi, Poco and Mi series are often equipped with powerful processors and screens with a high refresh rate, which, combined with optimization of the MIUI shell or HyperOS, can lead to an increase in the temperature of the case.

Overheating can be caused by a variety of factors, from the banal use of the navigator in the sun to hardware malfunctions of the motherboard. It is important to understand that a short-term temperature rise to 40-45 degrees Celsius during active load is a normal physical process, but constant intense heat requires intervention.

In this article, we will discuss in detail the software and hardware causes, explain how to correctly diagnose the problem and what steps you need to take to extend the life of your device. Ignoring symptoms can lead to battery bloating or detachment of display plumes.

Normal temperature and critical values

Before you panic, you should understand the specifications of your gadget. Modern Qualcomm Snapdragon and MediaTek Helio processors are designed to work in a wide range of temperatures. For lithium polymer batteries used in Xiaomi, the operating range is considered from -10 to +45 degrees Celsius.

If the body of the smartphone heats up to 35-40 degrees, it is considered normal operation of the cooling system. However, when the temperature rises above 45-50 degrees, the Android operating system begins to force the processor clock (trottling) to avoid damage to components. The critical area is the 60 degrees mark, when it reaches which the phone can completely shut down.

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Use the CPU-Z or AIDA64 app to get accurate data on the CPU and battery temperature, as the standard indicator in settings often shows averaged values.

If you use your navigator in a car left in the sun, or play heavy games like Genshin Impact at maximum settings, heating to 42-43 degrees is the expected response of the system to peak load, not breakdown.

Programmatic causes of overheating and background processes

One of the most common reasons why Xiaomi is warming up is the malfunctioning of the software. MIUI It is famous for its functionality, but sometimes background processes can get stuck, putting a constant load on the CPU even in standby mode.

Often the culprits are social networks and messengers that are not optimized for the background, they can constantly update the feed, download media files or use geolocation. Check the power consumption statistics in Settings → Battery and performance to identify parasitic applications.

Also worth paying attention to widgets and live wallpaper. Constant animation on the desktop consumes the resources of the graphics accelerator, which directly affects the temperature. Turning off unnecessary visual effects often helps reduce heating in downtime.

• 🔴 Annexes with GPS-navigation (Yandex.Maps, Google Maps) actively use communication modules and processor.
• 🔴 Social networks (Instagram, TikTok) constantly upload video content via the Internet.
• 🔴 High-graphics games are loading GPU and CPU 100%.
• 🔴 Video calls (Zoom, WhatsApp) simultaneously use the camera, microphone and network.

Problems with charging and use of accessories

If your Xiaomi smartphone gets hot while connecting to the network, the problem may lie in the charging procedure itself. Quick Charge and Power Delivery technologies involve passing large currents, which inevitably leads to heat generation.

Using unoriginal or cheap thin-section cables creates additional resistance, which causes some of the energy to be lost as heat, heating the charging port and the adjacent area of the motherboard. The original power supply and cable from the trim are always preferred.

⚠️ Warning: Never cover a charging phone with a blanket, cushion or cover with poor heat transfer.This blocks heat removal and can cause the battery to bloat or catch fire.

In addition, the active use of the phone while charging (especially playing games or watching videos) creates a double load: the battery is heated by incoming current, and the processor from the tasks performed, in which case the system can limit the charging speed or suspend it until it cools down.

External environmental impact and operating conditions

External conditions play a huge role in thermoregulation of the device. Direct sunlight heats the body faster than a working processor can remove heat. Even in the shade, at an air temperature of +30 ° C, the phone can overheat when used actively.

Protective cases, especially those made of thick leather, silicone with pile or thick plastic, create a "thermos" effect. The heat generated by the internal components cannot escape and accumulates inside the case. Removing the case during heavy tasks often solves the problem instantly.

Avoid extreme temperature changes, too, and if you're out of a cold room in the heat, condensation can form inside your phone, which is dangerous for electronics, and allow the device to warm up to room temperature before turning on.

Hardware malfunctions and wear of components

When software methods don’t help, and Xiaomi’s phone warms even at rest, it’s worth thinking about “iron”: Over time, the thermopaste between the processor and the radiator dries up and loses its thermal conductive properties, especially in devices older than 3-4 years.

Another common problem is battery wear. Older batteries have high internal resistance, which makes them warm up when charged and discharged. If your phone is several years old and it discharges quickly with simultaneous heating, it is likely that the battery needs to be replaced.

Poor cellular signal also makes the modem run to the limit, constantly searching the network, which leads to local heating of the bottom of the smartphone, where the antenna unit is usually located.

Overheating Remedy Methods: From Simple to Complex

If you encounter a problem, start with simple steps, first perform a forced reboot of the device, which will clear the RAM and stop the hanging processes that could cause cyclical load on the CPU.

Next, check for system updates. Xiaomi engineers regularly release patches that fix optimization errors. Go to Settings → About the phone and click on the MIUI version. Also update all apps via Google Play or GetApps.

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The most effective way to lower the temperature right now is to turn on the flight mode for 1-2 minutes (to reset the network) and close all running applications through the multitasking menu.

For advanced users, cache cleaning and uninstallation of unused applications are available. The MIUI shell has a built-in Cleanup tool in the Security app that helps remove temporary files.

• 🔵 Remove recently installed applications that may contain miner viruses.
• 🔵 Turn off Bluetooth and GPS, if they are not currently in use.
• 🔵 Reduce the screen refresh rate to 60Hz in the display settings.
• 🔵 Use a “dark theme” to reduce the burden on the AMOLED-screen.

⚠️ Warning: Don't put the heated phone in the fridge! sharp cooling will cause condensation inside the case, which is guaranteed to short circuit and corrosion of the board.

In extreme cases, if nothing works, you may need to reset completely to factory settings.Be sure to back up your data in the Mi Cloud cloud or on your computer before doing so.

When you need to contact the service center

There are situations where self-repairing is useless or dangerous: If the phone heats up to a state where it cannot be held in your hands, or if artifacts (colored stripes, ripples) appear on the screen, these are signs of a serious hardware malfunction.

Also, the reason for visiting the service is the bloating of the battery, so if the back cover has moved away or the screen has started to arch, it is strictly forbidden to operate the device, it is fire dangerous, urgent battery replacement is required.

Do not ignore the problem of constant overheating. Prolonged exposure to high temperatures destroys the adhesive base of the display (a yellow spot appears - "burnout") and reduces the battery life many times faster than natural wear.