Owning a Xiaomi smartphone means wanting to know everything about your device, from the amount of RAM to the exact version of the installed firmware. Often users buy the gadget in the secondary market or receive it as a gift, and basic information about the configuration of hardware becomes critical to installing demanding applications or games. In the era of HyperOS and the latest versions of MIUI, the settings menu has undergone significant changes, and finding the cherished numbers has become less obvious than in the old Android shells.
Understanding the actual hardware capabilities of the device is necessary not only to satisfy curiosity, but also to correctly optimize the system. Knowing the exact model of the processor and the type of screen matrix, you can avoid installing incompatible software or incorrectly selected graphics settings. In this article, we will discuss in detail all ways to obtain comprehensive information about your device using both standard system tools and specialized utilities.
Don’t rely solely on the data on the box or check, as the software may have been updated, modified or modified during operation. The exact version of the Android kernel and the date of the security patch are the first data to check before installing banking applications. We’ll look at methods that will show you the true state of affairs by hiding or, conversely, revealing details that the manufacturer sometimes hides from the average user.
Standard methods through the settings menu
The easiest and safest way to learn the basic parameters of the device is to use the built-in “About Phone” section. In current versions of the shell, the path can vary depending on the regional firmware (Global, China, EEA), but the logic remains the same. Usually, just go to Settings → About the phone to see the model, OS version and the amount of built-in storage.
However, if you need more detailed information, such as screen resolution or the exact frequency of the processor, the standard menu may not be informative enough, in which case the system offers a hidden but legal way to access the device's full technical passport. To do this, in the menu “About the phone” you need to find a line with the firmware version (for example, HyperOS). 1.0 or MIUI 14) and press it quickly several times in a row (usually) 5-7 once).
After this action, an extended menu with technical data that is hidden by default will open.
- 📱 Exact model of the processor and its clock frequency in real time.
- 💾 Total and available amount of RAM (RAM).
- 🔋 Battery status, including number of charging cycles and current temperature.
- 📡 The basic radio modulation version and IMEI.
It is important to understand that the data in this menu is “live” and can change depending on the current load on the system. The amount of free memory will fluctuate depending on the background processes running. This is the normal behavior of the Android operating system, not a sign of a malfunction.
Using the Engineering Menu for Diagnostics
For users who need deep technical data, there is an engineering menu, a hidden part of the system that is designed to be used by the manufacturer to test hardware components, and accessed through a set of special devices. USSD-The most universal code for Xiaomi and Redmi devices is # #6484##.
Once you enter the code, you'll see a test list (CIT), where you can check the performance of each sensor, vibrator, speaker and communication module. However, you need to be careful to view the characteristics: some items show only the Pass/Fail test result, but not the technical specifications. To see the driver version or screen calibration, you sometimes need to go to the Version Information subsection.
⚠️ Note: In the engineering menu, it is strictly forbidden to change the values in the sections related to the calibration of sensors or IMEI, Without the need for special equipment or knowledge, resetting factory calibrations can cause the autobrightness or proximity sensor to malfunction.
If the standard code doesn’t work (the carrier can block such requests), try alternative combinations that often work on global firmware:
- 🔧 ##4636## - Testing and information menu (works on most Android devices).
- 📶 ##3646633## - MediaTek's alternative engineering menu (rare but encountered).
- 📟 *#06# - Quick check-up IMEI code.
These codes are safe to use if you don’t change the settings, and are a great way to make sure the components are original, such as checking if the type of display matrix (OLED/IPS) you’re looking at matches what you’re seeing on the system.
💡
If the code doesn’t work, try entering it without pressing the call button. On most Xiaomi smartphones, the menu opens automatically after entering the last star.
Third-party applications for detailed analysis
When built-in tools are scarce, Google Play’s specialized tools come to the rescue, which can read data directly from the kernel’s system files, providing information that the manufacturer often hides, and the CPU-Z app, which shows detailed information about SoC (System on Chip), has been the leader in this field for many years.
Another powerful tool is AIDA64, which provides perhaps the most comprehensive system record, including the temperature of each processor core, voltages in different power circuits, and detailed sensor information. For ordinary users who just want to compare specs before buying accessories, the simpler Device Info HW app will do.
Advantages of using third-party software:
- 📊 Displaying the actual rendering resolution, which may differ from the physical.
- 🌡️ Real-time temperature monitoring with graphs.
- 💻 Detailed information on GPU (Video core and supported technologies (Vulkan, OpenGL).
It is worth noting that some “Chinese” firmware versions can block third-party applications from accessing certain sensors, in which case the data can be displayed as “Unknown” or “0”, which does not mean a breakdown, but only a software limitation of the regional version of the software.
Why do apps show different data?
Checking through computer and ADB
For advanced users and repair professionals, the most reliable source of information is the connection of a smartphone to a PC. Using the Android Debug Bridge (ADB) debugging bridge allows you to access system logs and configuration files that are not available even through the engineering menu.
To get started, you need to turn on the developer mode and activate USB Debugging in the settings. Once you connect to your computer and install the drivers, you can use the command line. The basic command adb shell getprop will display a huge list of system properties. To avoid drowning in information, you better use filters.
For example, to get an accurate device model and build the OS, use the command:
adb shell getprop | grep"ro.product.model\|ro.build.version.release"This method is indispensable when the phone is unstable and the screen menu is not available or displays incorrect data. ADB You can find out the exact wear of the battery by requesting a file battery_health, What can not be done without root rights.
⚠️ Attention: When working with ADB Be careful with commands containing "set" or "write." Changing system properties (props) can lead to a software "brick" of the device that requires flashing.
Comparison of claimed and real characteristics
Often, a user buys a phone using marketing booklets and discovers discrepancies when checking, which is especially true for memory: manufacturers often use binary numerals and the OS is decimal, which turns 128 GB into ~119 GB.
Below is a table to help you understand the difference between marketing titles and actual volumes available, as well as other parameters:
| Parameter | Claimed (Marketing) | Real in the system (OS) | Reason for the difference |
|---|---|---|---|
| 64GB memory | 64,000,000 bytes | ~59.6 GB | Difference of number systems (1000 vs 1024) + system partition |
| RAM 8 GB | 8GB of LPDDR4X | ~7.1 - 7.5 GB | Backup for the core of the system and GPU |
| Screen frequency | 120 Hz | 60/90/120 Hz | Adaptive frequency (LTPO) changes dynamically |
Also worth considering is virtual memory expansion technology. In Xiaomi settings, you can often find the option “Memory Extension” when part of the permanent storage is used as RAM. In specs, this may appear as “8+3 GB”, but physically the RAM chip remains 8-gigabyte.
💡
The difference in memory between the declared and the real is not a defect, but a feature of the architecture of the Android file systems and the reservation of space for system needs.
How to identify a fake or rebuilt machine
The electronics market is saturated not only with original products, but also with copies or devices after unskilled repairs. Performance checks are the first step to detecting fakes. Counterfeit products often use older versions of Android, disguised as a new shell, and cheap processors.
Note the behavior of the interface. If the characteristics of the powerful Snapdragon 8 Gen, and the menu slows down when you open simple applications, this is an alarming sign. Also, fakes often have incorrect screen resolution, which can be detected by taking a screenshot and looking at its properties on a PC (the original will show the native resolution, the fake can stretch the picture).
Key signs that require additional verification:
- 🕵️ Inconsistency IMEI-code on the box, menu and on the manufacturer's website.
- 📸 The camera with the declared 108 MP takes pictures with artifacts and low resolution (interpolation).
- ⚡ No fast charging despite claimed 120W support (check via ##6484##).
Refurbished vehicles may have original components but a replaced body or battery, and this can be verified by analyzing the charge cycles in the engineering menu or through the ADB. If the phone is 1 month old and the charge cycles are already 150, the device is clearly used.