How to check the status of the processor on the Xiaomi phone: the complete guide

The processor is the brain of your Xiaomi smartphone, which is responsible for speed, multitasking, even battery life. If your phone starts to brake, overheat, or discharge quickly, the first thought is to check the status of the chipset. But how do you do it correctly without having to disassemble the device?

In this article, we will discuss 7 working methods of diagnosing the processor on Xiaomi, Redmi and smartphones POCO — standard-tool MIUI You will learn how to check temperature, core load, performance and even identify hardware problems (such as trottling or chip degradation). Helio/Dimensity and other processors used in Xiaomi lines.

Important: Some tests can load the processor, which will temporarily raise its temperature. If your smartphone is already overheating, start with methods without stress tests (sections 1-3).

1. Verification of the processor through built-in tools MIUI

Xiaomi smartphones based on firmware MIUI They have hidden system tools to monitor iron status. They don't need to be installed -- they're available out of the box, but hidden in the developer menu.

To activate the developer menu:

1. Go to Settings. → The phone.
2. Find the MIUI version and tap it 7 times in a row (you will receive a notification “You became a developer”).
3. Return to the main settings menu – there will be a new section for developers.

Now you can:

• 🔍 View the current processor frequency in real time (for developers) → Activity monitor).
• 🌡️ See the temperature of the chipset (for developers) → Battery status → Processor temperature).
• ⚡ Check the use of kernels (tab) CPU activity-monitor).

⚠️ Note: If there is no Activity Monitor in the Developer Menu, your Xiaomi model can use a stripped-down version. MIUI (For example, for the European market, in which case you go to methods 2-4.

2. Applications for processor monitoring: TOP-3 utility

Standard tools MIUI They give basic information, but for deep diagnostics, it is better to use third-party applications. We tested dozens of utilities and selected 3 of the most accurate and safe for Xiaomi:

Recommended: Use a quick check CPU Monitor, for in-depth analysis — AIDA64. If you want to know the model of the processor and its characteristics (for example, process technology or the number of cores), DevCheck is suitable.

Close all background applications

Connect the charger (if the battery is below 50%)

Shut down. Wi-Fi/Mobile data (for test purity)

Launch the application on behalf of the administrator (if required)-->

3.How to check the temperature of the processor on Xiaomi

Overheating is one of the most common problems Xiaomi processors, especially on budget models (Redmi). 9A, POCO M3) or in intensive use (games, video shooting) 4K). Normal operating temperature of the chipset:

• 🟢 25–40°C – Perfect Mode (Simple, Web Surfing).
• 🟡 40–60°C – average load (social networks, YouTube).
• 🔴 60–80°C – High load (games, video rendering).
• ⚠️ Over 80.°C – critical overheating (risk of trottling or shutting off).

To measure the temperature:

1. Install the app CPU Thermometer (Free on Google Play).
2. Run it and wait for calibration (10-15 seconds).
3. Look at the value. CPU Temp is the current temperature of the processor.

If the temperature is above 70°C no load, that's a sign:

• 🔋 Problems with thermopaste (relevant for older models, for example, Xiaomi Mi 8 or Redmi Note 5).
• 🧹 Clogging of the cooling system (dust in the radiator).
• 🔄 Fan malfunction (on active cooling models, for example Black Shark).

⚠️ Note: Some Xiaomi smartphones (for example, POCO F3 or Redmi K40) The temperature of the processor can briefly rise to 85-90°C when you start heavy games (Genshin Impact, Call of Duty Mobile). This is normal if after 5-10 minutes the value drops to 60-70°C. If not, cleaning or replacement of the heat paste is required.

💡

If the temperature of the processor jumps sharply even for simple tasks (for example, when watching a video), try rolling back the firmware. MIUI previous version – sometimes overheating causes errors in updates.

4.CPU stress test: revealing trottling and degradation

The stress test helps you check how the processor performs under maximum load, and this is true if you suspect:

• 📉 Trottling (automatic performance decline due to overheating).
• ⚡ Chip degradation (deterioration of performance over time).
• 🔧 Nuclear malfunction (one or more cores are disabled).

We use it for testing. AIDA64:

1. Open the application and go to the Tests section.
2. Select the Stability Test (Stability Test).
3. Activate the ticks only for CPU (turn off GPU memory).
4. Press Start and watch the charts for 10-15 minutes.

What to analyze:

• 📊 Frequency schedule: If the frequency falls below the maximum (for example, from 2.8 GHz to 1.5 GHz), this is a sign of trottling.
• 🌡️ Temperature: if it exceeds 90°C, the test needs to stop.
• ⚠️ Errors: If the test is interrupted with an error, it is possible that one of the cores is faulty.

Critical information: on Xiaomi smartphones with MediaTek Helio processors G85/G90T (For example, Redmi Note 9 Pro, POCO X3) Trottling can begin already at 75°C is a feature of architecture, not a defect.

5.CPU check through engineering menu (MTK Snapdragon)

The engineering menu is a hidden section of the smartphone where low-level settings and diagnostics are available.

For MediaTek (Helio, Dimensity):

1. Open the Phone app.
2. Enter the code: ##4636###.
3. Select Phone Information → Battery information.
4. Look at the CPU Temperature line.

For Qualcomm Snapdragon:

1. Enter the code ##2255## (some models run #8658328###).
2. Go to the Hardware Testing section → CPU.
3. Slip the test to check the stability of the cores.

⚠️ Warning: Do not change the settings in the engineering menu unless you know their purpose! Incorrect settings can lead to loss of communication, overheating or even a device blink (for example, if you turn off the processor cores).

In the engineering menu you can also check:

• 🔌 Voltage at the cores (should be stable, without jumps).
• ⚡ Energy consumption (if one core consumes much more than the others, it may be malfunctioning).
• 📡 Cache state (cache errors indicate memory problems with the processor).

6. How to identify processor malfunctions by indirect signs

You don't always need apps or tests to suspect a CPU problem.

If you have multiple symptoms at the same time, it's a good case for diagnosis, like overheating. + quick-discharge + freezes almost always indicate processor degradation or problems with power cores.

For accurate diagnosis:

1. Launch it. CPU Monitor and monitor the load during the day.
2. Check the error log in Settings → Memory. → Journal.
3. Compare the results with the reference indicators of your model (you can find them on the forums). 4PDA or XDA Developers).

💡

If Xiaomi's processor overheats and trottlites even after cleaning and replacing the thermal paste, it's likely the problem is the degradation of the silicon crystal. It's irredeemable, all that remains is the replacement of the chipset.

7. Hardware diagnostics: when to carry the phone to the service

If software methods have not detected problems, but symptoms persist, a hardware check may be required.

• 🔧 Smartphones after a fall or impact (risk of microcracks on the board).
• 🔥 Devices with a history of overheating (soldier degradation is possible).
• ⚡ Phones after a failed repair (for example, after replacing the battery or screen).

The service center will check:

• 🔍 Processor soldered contacts (frequent problem after falls).
• 🧪 The quality of thermopaste (on models with a removable radiator, for example, POCO F1).
• 🔌 Integrity of food chains (problems with capacitors or throttles).

The cost of diagnostics in official Xiaomi services is 500-1500 rubles, the replacement of the processor - from 3000 to 8000 rubles (depending on the model). 8A, POCO C3) repairs may not be cost-effective – it is cheaper to buy a new phone.

⚠️ Warning: If you're offered a "cooking chip" for 1,000 to 2,000 rubles, it's almost always a scam. BGA-soldering station and experienced master - such services can not cost cheap.

FAQ: Frequent questions about checking the processor on Xiaomi