The question of how to read information about Xiaomi smartphone often confuses users with its versatility. Owners of gadgets want to know not only the technical characteristics, but also to be able to decrypt hidden codes, understand the structure of file systems or even read data from damaged boards. A deep understanding of the device of your gadget allows you not only to use it more efficiently, but also to avoid problems when flashing or buying used equipment. We will examine all aspects from reading labels on the case to analyzing system logs.
Xiaomi's Android phones today store vast amounts of data that is hidden from the user, but knowing the right ways, you can know who made the screen, what battery is installed and whether it has changed, and verify the authenticity of the device. Engineering menus and special utilities give access to this data. It is important to approach this process systematically, so as not to get confused with numbers and acronyms.
In this article, we will look at how to read technical documentation, region codes, and internal identifiers, and learn how to distinguish the Chinese version of firmware from the global one by simply looking at the model code, and we will also discuss the topic of log reading for error diagnosis, which can be useful when communicating with technical support or self-repair.
Decoding of the model and region by IMEI code and box
The first thing to read when buying or checking a device is its model number, usually on a sticker at the back of the box or in the system settings. Xiaomi codes are built according to a certain logic that allows you to determine the region and characteristics, for example, models ending in Global are designed for the international market, while China is for the domestic market of China.
Notice the letter marks at the end of the model code, which indicate color variation and memory, but may also contain information about a particular carrier. IMEI-The code also carries information about the manufacturer and country of assembly, which can be verified through open databases, which is critical to eliminating recovered or counterfeit devices.
Reading this data helps you understand what LTE frequencies your device supports. Chinese versions often lack some ranges important for operating in Europe or the CIS. So being able to "read" a model is the first step to buying a suitable device.
- 📱 MI — brand designation at the beginning of the series.
- 🌍 Global – indicates the presence of Google services and multilingual firmware out of the box.
- 🇨🇳 China – version without pre-built Google Play (requires manual installation) and with Chinese.
- 📦 Box Code – The code on the box often contains a production date in the format of GGMM.
⚠️ Warning: Never blindly trust the stickers on the box when you buy a used device. The box is easy to fake or take from another phone. IMEI on the screen (command *#06#) with IMEI case and document.
How to read technical specifications through the engineering menu
To get detailed information about the hardware of the Xiaomi smartphone, there is a hidden section, the engineering menu, which you can access through a standard dialer, by entering a special combination, which allows you to read data about the sensors, battery status and radio module in real time, which is not available in normal settings.
The most useful feature reading section is the CIT (Customer Integration Test) menu, where you can run tests of all components: screen, vibration, microphones and sensors, and the diagnostic data is displayed as Pass/Fail statuses or numerical values that help identify defects.
☑️ Check through CIT
You can also use the engineering menu to read information about the cellular signal, and the Phone Info section will show the signal strength in dBm, the network type (LTE/5G) and the ID of the nearest tower, which is an indispensable tool for anyone who wants to understand why the network is not catching well in a particular place.
- 📶 Signal Strength – shows the actual signal strength (norm from the signal) -80 before -100 dBm).
- 🔋 Battery Info – displays the real capacity, wear and temperature of the battery.
- 📡 WiFi Scan – allows you to read the list of all visible networks and their frequency channels.
Reading Logs and Error Reports (Bugreport)
When a device is unstable, the system creates special files called logs, and the ability to read them or at least extract them correctly is a key skill for an advanced user. At Xiaomi, the Error Report feature in the About Phone menu is responsible for this.
Logs are text files that contain a chronology of system events. Log analysis reveals an application causing cyclic reboots or a driver that conflicts with hardware. For the average user, reading raw code can be difficult, but the structure of the files is clear: there are timestamps and process tags.
What do we do with the logs?
The ADB tool is used to extract logs through a computer, and the adb logcat displays a real-time stream of data, and the adb bugreport creates a complete state archive, a professional method that requires drivers installed.
⚠️ Note: Logs may contain personal information (passwords, correspondence, geo-location) before sending an error report to third parties, make sure you understand what data is contained therein, or use the automatic anonymization feature if available in your version. MIUI.
Determination of the component manufacturer (Screen, Camera, Memory)
One of the most common questions is how to read which manufacturer is installed in a smartphone. Xiaomi, like many other brands, uses components from different suppliers (Samsung, LG, BOE for screens; Sony, Samsung for cameras), you can find out through a hidden menu or special applications.
The most reliable way is to use the Device Info HW utility or analogues that read data directly from drivers. In Xiaomi's standard menu, this information is often hidden or encoded, for example, 0x01 can mean one vendor and 0x02 can mean another.
| Component | Supplier A | Supplier B | Supplier B |
| :--- | :--- | :--- | :--- |
| Screen | Samsung E5 | BOE | TCL |
| Main camera | Sony IMX | Samsung ISOCELL | OmniVision |
| Memory (NAND) | Micron | Kioxia | Hynix |
| modem | Qualcomm | MediaTek | - |
Differences in vendors can affect screen color reproduction or nighttime shooting. Matrix lottery is common, but Xiaomi tries to calibrate screens software to minimize the difference. Reading the driver version in logs sometimes also gives a hint about the vendor.
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To quickly check the screen provider without third-party software, type ##64663## (if available on your model) and select the hardware version test.
Reading QR-codes and hidden labels in MIUI
Xiaomi camera has a built-in scanner that can "read" not only links, but also special service QR-These codes may be found in documentation, on warranty cards, or even in the interface of some quick authorization applications.
There are also hidden tags in the system, for example, when you connect to a Mi Wi-Fi router, the phone can read the network configuration through the network. NFC or QR-code on the router's body. This makes it easier to set up a smart home.
Also worth mentioning is the Google Lens feature built into the camera, which allows you to read text from a photo, translate it or copy it, which is useful for document work, where you need to quickly transfer data to notes or a translator.
- 📸 Scan QR — Camera mode for reading links and authorization codes.
- 📝 Text Recognition – Retrieving text from images (OCR).
- 🏠 IoT Connect – Reading tags for fast Mi Home devices.
Analysis of firmware files and system partitions
For those interested in deep level, you can read the firmware structure. Update files (.zip or.tgz) contain the system, boot, vendor partitions, and you can unpack them on your computer and examine the contents.
Inside the system partition are configuration files that determine how the interface behaves. Prop files contain key device parameters that the server sees when it connects, and by changing them (requires Root), you can "read" and change the device model for other applications.
adb pull /system/build.prop C:/miui_props.txtThis command will allow you to copy the property file to the computer for analysis. However, interference with system files without proper qualifications can lead to loss of warranty or inoperability of the phone (bootloop).
⚠️ Warning: System, boot modification automatically voids warranty.Before any manipulation of firmware files, make sure to make a full backup of data and make sure that the battery is charged at least 80 times%.
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The ability to read system files and logs transforms the user from a passive consumer into an active diagnostician, able to solve 90% of software problems on their own.