Owners of Xiaomi smartphones often notice a parameter called the “health” of the device in system applications or third-party utilities, which raises many questions for users accustomed to a standard android, but it is actually a comprehensive assessment of the technical condition of the gadget, which combines many parameters into a single number.
It analyzes battery wear, memory occupancy, application error rates, and even overheating history. MIUI and the newer HyperOS have built-in algorithms that constantly monitor these metrics. Understanding how this score is formed will help you extend the life of your device and avoid sudden crashes.
Unlike simple benchmarks, which only show performance at a given moment, this parameter takes into account long-term factors, such as frequent installation and removal of heavy games can reduce the reliability rating of the file system, and then we will discuss in detail what this metric consists of and how to manage it.
⚠️ Warning: Don't blindly trust third-party apps from Google Play that promise to "heal" the phone, often just showing banner ads rather than real-world system data.
What is hidden behind the term “health system”
When we talk about the health of Xiaomi's smartphone, we mean a collection of hardware and software metrics. The evaluation algorithm takes data from temperature sensors, power controllers and operating system logs. It's not just a beautiful picture, it's a working diagnostic tool.
The main factor that affects the overall score is the state of the drive. Flash memory has a limited resource of overwrite cycles. If you constantly fill up the memory and erase the data, the controller marks the cells as worn out. The system reads this data through standard Android interfaces.
The second important aspect is software stability: frequent system service crashes, interface freezes and errors in the background process reduce the rating. Xiaomi tracks the number of forced application closures (Force Close) and generates statistics.
Where to find information about the state of the device
The Chinese company's modern shells don't have a single health button, like the iPhone, but you can access that data through the built-in Safety app, and that's where the basic diagnostic information is aggregated.
To get detailed technical statistics, engineers use a hidden menu, so to get there, you have to open a standard dialer and enter a special code, so you can see the raw data that the system analyzes.
There's also the ability to connect to a computer and use debugging commands, a more complex method that requires driver installation and minimal ADB knowledge, but it gives the most complete picture without installing third-party software.
- 📱 Open the Safety app (green zipper icon) on the home screen.
- ⚙️ Go to the Cleanup section or click on the trash bin icon for initial analysis.
- 🔋 Select the Battery or Performance tab for a detailed report.
- 📞 Enter the code ##6484## to access the engineering test menu.
It is worth noting that codes may vary depending on the firmware version and region, and in global versions of MIUI Global, some diagnostic features may be reduced compared to Chinese builds.
Hidden codes for diagnosis
Factors affecting the decline in indicators
Why can health rates fall? It's primarily due to the natural aging of components. The lithium-ion battery degrades with each charge-discharge cycle. The chemical processes inside the battery are irreversible, and it's not programmatically resuscitated.
The second critical factor is heat: If you play heavy games frequently while charging or leave your phone in the sun, the processor and battery are stressed, the thermal interfaces dry out over time, heat removal deteriorates, which is recorded as a negative factor by the system.
Internal memory overload also plays a role, where when the space is running out, the system has no place to create temporary files and cache, which leads to fragmentation of data and slowdown of the memory controller.
| Parameter | Health effects | Critical level |
|---|---|---|
| Battery wear and tear | High. | Below 80% capacity |
| Free seat | Average. | Less than 5-10% |
| Temperature. | High. | Above 45°C at rest |
| Mistakes by | Low/Mediocre | Frequent reboots |
Users often ignore system updates, believing they are only slowing down the phone.In fact, security and stability patches often fix power management errors, which positively affects the durability of iron.
Methods of software optimization
If you want to improve your device's health, start with software hygiene. Delete unused applications is the first step. Many programs run in the background, consuming resources and putting a strain on the processor.
Cache cleaning is also important, but you need to know the measure: Constantly completely clearing the cache causes applications to re-download data, which puts an extra burden on memory.
☑️ Weekly prevention
Use Flight mode in low-course areas, and when the signal is weak, the communications module is at maximum power, causing high heat and rapid discharge, and this is one of the most subtle ways to kill a battery in a couple of years.
To extend the life of the screen, it is recommended to turn off Always On Display, unless urgently necessary. Constant glow of pixels, even in minimal mode, contributes to the burnout of the matrix, especially on panels such as AMOLED.
Hardware limitations and physical wear
No program can restore a physically worn battery if the system shows that the battery is in critical condition or the phone shuts down when the battery is in a state of emergency. 20-30% The only way to get the charge is to replace the battery.
Mechanical damage, such as falls or moisture, also affects the board's "health": Microcracks in soldering can lead to periodic module failures, a system that can interpret as software failures.
⚠️ Warning: If the phone starts to warm up strongly in standby mode, it may indicate a short circuit in the power supply or a malfunction of the controller.
Screens are also degraded, and older models with IPS arrays may have glowing at the edges, and OLED displays lose brightness and color saturation, and you can't fix this software by replacing the module.
💡
Use original chargers or certified counterparts with Quick Charge, Power Delivery protocols. Cheap power supplies can give power surges that harm the charge controller.
Hidden functions and engineering tests
For deep diagnostics, we use the CIT (Customer Information Test), a set of tests that allows us to check each module of the phone separately, and you can see the actual battery capacity, the number of charging cycles and the status of all the sensors.
This menu allows you to run a heating test, check the vibrator, microphones and speakers, and this is especially useful when buying a used device to make sure that all the functions are working correctly.
adb shell dumpsys batterystats --chargedThis command, entered through a computer with an ADB phone connected, will show detailed battery discharge statistics since the last full charge, and it is more useful than the standard graphs in the settings.
Don't often reset your settings to factory settings in the hope of making your phone healthier, which puts a huge strain on memory when you re-install applications and fill in data, and only reset completely if you have serious software problems.
💡
Regular reboot (once every 3-4 days) clears the memory and completes the suspended processes, which has a positive effect on the overall stability of the system without the risk of data loss.