How to Check Xiaomi Phone Temperature: Full Guide

Overheating of a smartphone is one of the most common problems faced by owners of Xiaomi, Redmi and Poco devices. Often users notice that the case of the gadget gets unpleasantly hot during charging or games, but do not know the exact numbers. Understanding the real temperature regime is necessary to diagnose the state of the battery and processor, as prolonged exposure to high temperatures can shorten the life of the device.

Android and the MIUI or HyperOS shell don't have a single Temperature Show button that displays data on the home screen, but it constantly monitors dozens of sensors inside the case, and you'll have to use hidden engineering menus, special codes, or install third-party software that can read sensor readings to get that information.

In this article, we will discuss all the current ways to get accurate data about the thermal state of your device, learn how to distinguish between normal and critical heating, learn how to enter the engineering menu using # # # #6484## and which applications are best suited for deep analysis of the hardware of Xiaomi smartphones.

Normal and critical temperature values for Xiaomi

Before panicking about a warm body, it’s important to understand the physical norms for modern electronics. Lithium polymer batteries used in Xiaomi smartphones are sensitive to fluctuations. The comfortable range for the processor and battery is the range from 30 ° C to 40 ° C at rest or under light load (social networks, messengers).

When you run resource-intensive games, 4K video or fast charging, heating to 45°C is acceptable and normal mode of operation of the cooling system. However, there are thresholds when you reach the thresholds that trigger trottling, a forced performance reduction to protect components. If the temperature exceeds 50°C, this is a signal of problems with heat removal or background processes.

⚠️ Note: If your phone shows a temperature above 55°C in simple or normal operation with the browser, this may indicate a battery failure or damage to the heat pad inside the housing.

A critical value for most Xiaomi models is the 60°C mark. When this threshold is reached, the system can force the device to shut down to prevent the battery from bloating or detachment of the display from the adhesive base. Below is a table that helps classify the state of the device by degrees.

Temperature check through CIT Engineering Menu

The most reliable and accurate way to find out the temperature without installing unnecessary programs is using the built-in engineering menu. CIT (This tool was created by Xiaomi engineers to factory diagnostics and testing all modules of the smartphone before sale, access to it is closed from the average user, but opens through a special device. USSD-code.

You don't need root rights or a computer connection to enter the diagnostic menu, but you just need to open a standard phone program and enter the sequence of characters. It's important to enter the code carefully, because if you fail to see a single character, the menu won't open. Some global firmware may have different code, but the main one remains universal.

##6484##

Once you enter the last star, the menu will open automatically, you don't need to call anywhere. In the list you open, you need to find the item related to the battery, it can be called Battery, Battery info or Battery Charge, and you click on it and you will see detailed statistics, including current voltage, wear and, most importantly, the actual temperature of the battery cells.

The interface of the CIT menu may vary depending on the version of MIUI. In older versions, the temperature is displayed in large numbers, in new versions it can be hidden in the tab "Status" or "Details." If the item "Battery" is missing, try to find the section "Version", which sometimes duplicates the basic technical information about the state of the system.

Using a code to check battery status

There is an alternative way to get information about the state of the grid, which works at the level of the system logs of Android, which is less informative than the CIT menu, but works on almost all devices where the standard engineering menu has been stripped down by the carrier or manufacturer, and allows you to quickly assess the overall status without going to complex test menus.

To activate this verification mode, enter the following code in the dialer:

##4636##

In the Testing menu that opens, select Battery Information, and you'll see the discharge graph, connection status, and current temperature, and the feature of this method is that it doesn't update in real time, but with a slight delay, because it's taken from the system cache, not directly from the power controller.

⚠️ Note: On HyperOS-enabled smartphones, access to the 4636 menu may be limited. If nothing happens after you enter the code, use the method with the following code: CIT menus or third-party applications.

This method is also useful for checking whether the charger is seeing correctly. If the status says “Charging via USB” and you plugged in the original power supply, it can mean a cable problem that indirectly affects heating when charging.

Third-party applications for temperature monitoring

When built-in tools are scarce or heating history is required, Google Play applications come to the rescue, with more flexible settings and the ability to display temperature on desktop widgets, and the most popular and technically competent solution is CPU-Z or AIDA64.

The CPU-Z app provides data in the "Device" or "Thermal" tab, and its advantage is that it shows the temperature not only of the battery but also of the individual cores of the processor, which is critical for diagnosing overheating in games. Unlike system methods, third-party software can poll high-frequency sensors, detecting even short-term jumps.

Another powerful tool is AccuBattery, which specializes in battery health and uses temperature data to calculate the rate of degradation of battery chemistry, and it allows you to set up an audible alert if the temperature rises above a predetermined threshold, which is very convenient when leaving your phone on a charge without supervision.

When using third-party software, remember that they consume the processor's resources themselves. Constantly polling sensors in the background can, paradoxically, cause additional heating of the device, so it is recommended to run such utilities only for the duration of diagnosis, rather than keep them active all the time.

Temperature analysis via MIUI and HyperOS settings

In the latest versions of Xiaomi shells, the company has introduced a more transparent system of informing the user. Although there is still no direct number in degrees in the usual settings menu, the system actively responds to overheating. In the section Security → Battery, you can find information about temperature conditions in the form of text warnings or color indicators.

If the phone overheats, a warning may appear in the notification curtain or in the control center, and there is an optimization feature in the Security menu that, if it detects a high temperature, will prompt you to close hot applications, which is not direct monitoring, but an important indicator of the state of the system.

For statistics-loving users, some versions of HyperOS have the Advanced Statistics feature in the About Phone menu. By clicking on the kernel or build version several times in a row, you can get into the hidden debugging menu, where sometimes (depending on the firmware region) you can display a log of temperature events over the past day.

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Use the standard Security widgets on your desktop, and although they don't show degrees, changing the color of the battery indicator from green to yellow or red signals increased temperature and load.

Causes of overheating and methods of their elimination

Once you know how to measure temperature, it’s important to know what to do if the values are out of the norm. The main cause of Xiaomi’s abnormal heating is often background processes. Malware, “miners” caught through banner ads, or simply “heavy” applications can load the processor 100% even when the screen is turned off.

Physical factors also play a role. A tight silicone case, especially in the summer or when using a navigator in a car in the sun, creates the thermos effect. The heat simply does not have time to move away from the body, and sensors detect rapid growth of degrees. Removing the case during heavy use is the first measure of prevention.

If you notice that the phone is warming in the camera area or upper body (where the processor is located), try to reduce the screen refresh rate or turn off animations. In the Settings menu → Advanced Settings → For developers, you can limit the number of background processes, which will reduce the load on the CPU and reduce heating.

• 📱 Close unused apps through the multitasking menu.
• 🔋 Turn off fast charging if it is not urgently needed (in battery settings).
• ☀️ Do not leave your phone in direct sunlight or on the dashboard of the car.
• 🔄 Check for system updates, as patches often contain power management fixes.

⚠️ Warning: Never put a heated phone in the fridge or freezer! a sharp temperature drop will cause condensation inside the case, which will short circuit and corrosion of the board.

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Cooling with water or cold is bad for electronics, so let the phone cool naturally in the shade or in front of the fan.

Frequently Asked Questions (FAQ)