Slowing down a smartphone, sudden reboots or reports of memory shortages are familiar problems? On Xiaomi devices (including Redmi, POCO and Black Shark), memory status affects not only performance but also the life of the gadget. Unlike iPhones or smartphones on pure Android, MIUI firmware has unique diagnostic tools that often go unnoticed.
In this article, youβll find 5 proven ways to test memory on Xiaomi β from standard features to hidden engineering menus. We will discuss how to distinguish between physical wear and tear of the drive from software freezes, what indicators are considered critical, and what to do if the system shows incorrect data.+ budgetary POCO M6.
1. Standard MIUI tools: where to look at memory status
MIUI provides basic memory information right in the settings to find it:
- Open the Settings. β The phone.
- Slip on the item Memory (or Storage in new versions).
- The system will show a diagram with the distribution of memory by category: Applications, Images, Video, etc.
But there's a catch: MIUI doesn't show the actual state of the drive (e.g., the number of overwrites or read errors), but it's hidden in the engineering menu, but you can quickly make room in this section:
- π§Ή Clean up garbage: Clean up button removes cache and temporary files.
- π Large files: the system automatically finds videos and documents over 50 MB.
- π Recommendations: MIUI Remove unused applications or transfer files to the cloud.
β οΈ Note: If the Memory section displays another more than 10 GB, it is a sign of fragmentation or failure of the file system.
2. Hidden settings: engineering menu and memory tests
For deep memory diagnostics on Xiaomi, use the CIT (engineering menu) that is available on all models, but the path to it is different:
- π± Method 1 (for new models): Enter the Phone application code ##4636##, then select Testing β Memory.
- π§ Method 2 (for older devices): Use the code ##284## for the drive test.
In the engineering menu, pay attention to the following parameters:
| Parameter | Normal value. | What does deviation mean? |
|---|---|---|
| eMMC Life Time | 0β70% | Over 80% critical wear and need replacement |
| Bad Blocks | 0 | Any value > 0 indicates the damaged sectors. |
| Read/Write Speed | Comparable with the modelβs passport data | A 30%+ drop in speed is a sign of wear and tear |
If the engineering menu is not available (on some POCO and Black Shark), use the MTK Engineering Mode app (for MediaTek processors) or Qualcomm Test Mode (for Snapdragon), which give you access to the same tests but through a graphical interface.
π‘
On smartphones with a Snapdragon processor (for example, Xiaomi) 13T) To access hidden memory settings, you sometimes need to turn on the developer mode. MIUI in the section About the telephone
Third-party apps: what AIDA64 and DiskInfo will show
Standard MIUI tools often hide the actual state of memory.
- π AIDA64: Shows the type of memory (UFS 2.1/3.1, eMMC 5.1), The storage temperature and read/write speed. β Memory devices look for the Health Status option.
- πΎ DiskInfo: Specializes in wear analysis. Shows Total Host Writes (total volume of recorded data) and Wear Leveling Count (degree of wear and tear).
- π οΈ DevCheck: A user-friendly interface to check all hardware components, including memory.Storage tab shows Disk Health as a percentage.
An example of the report from AIDA64 for Redmi Note 12 Pro+:
Storage Type: UFS 3.1
Health: 92% (Good)
Total Writes: 12.4 TB
Bad Sectors: 0
Read Speed: 1200 MB/s
Write Speed: 850 MB/sβ οΈ Note: If DiskInfo shows Health Status: Warning at a value below 80%, this does not always mean the imminent death of the drive. UFS 3.1 (e.g. Xiaomi 14 Ultra) has a higher safety margin than the eMMC 5.1 in budget models.
Memory type (UFS/eMMC)|Read/write speed |Health Status |Number of bad sectors |Drive temperature-->
4. ADB commands: how to get data without root
For advanced users, there is a way to check memory through ADB (Android Debug Bridge), which does not require root rights and works on all Xiaomi models:
- Install ADB Tools on your PC.
- Turn on USB debugging in the developer settings (Settings β About Phone β MIUI version β tap 7 times).
- Connect your smartphone to your PC and execute the commands:
adb shell
su -c "cat /sys/block/mmcblk0/device/life_time"This command will return two values:
- Life Time A is the wear and tear of the system partition.
- Life Time B is the wear and tear of the user section.
For models with UFS (such as Xiaomi 13 Pro) use:
adb shell
su -c "cat /sys/block/sda/device/life_time"Normal values:
- π’ 0β50: Memory in excellent condition.
- π‘ 50β80: moderate wear and tear, it is worth thinking about backup.
- π΄ 80+: Critical wear and high probability of data loss.
What if the ADB does not recognize the device?
5. Physical Diagnostics: When the Problem Is Not in Software
If all the tests show that the memory is fine, but the smartphone still slows down or gives out errors, the problem may be hardware.
- π Cyclical reboots when trying to write files.
- π± Logo hangings MIUI post-refresh.
- π Overheating in the lower part of the body (where the memory is located).
- π« Error "Storage space damaged" when connecting to a PC.
In such cases:
- Try to reflash the device via Fastboot (see instructions for your model at xiaomi.eu).
- If the flashing does not help, contact the service center. Xiaomi with a guarantee of up to 2 years (in Russia - up to 1 year) will replace the memory for free when confirming a factory defect.
β οΈ Attention: On devices with UFS 3.1 (e.g. Xiaomi) 12T) Physical memory damage is often disguised as software failures, and if the problem remains after the factory reset, it is a 100% hardware malfunction.
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Xiaomi smartphones since 2022 (12/13/14) use UFS 3.1/4.0 memory, which is less prone to wear than eMMC in budget models. However, it is sensitive to overheating - avoid direct sunlight and games when charging.
6.Memory optimization: how to extend the life of the drive
Even if your memory is in good condition, a few simple rules will help you avoid premature wear and tear:
- π Turn off automatic cache cleaning in Settings β Memory. β Autocleaning: Frequent cleaning reduces memory life.
- π Transfer heavy files (video, games) to microSD. on Xiaomi with hybrid slot use cards UHS-I class A2.
- β‘ Avoid charging during intense recording (e.g., updating or shooting videos in the video) 4K). This increases the heat of memory.
- π Update. MIUI β In new versions optimized algorithms for data recording.
For eMMC models (e.g. Redmi 9A or POCO C50) it is particularly important to:
- Do not use your phone as a flash drive (frequent PC connections).
- Turn off background synchronization for unnecessary applications.
- Use light firmware (for example, MIUI Lite or custom builds based on Android Go).
On devices with UFS (Xiaomi 11/12/13/14), the main threat is overheating. Monitor the temperature through the CPU Monitor app and avoid:
- Charging games.
- Use of covers with poor ventilation.
- Place your phone near heat sources (e.g., on a car torpedo in summer).