How to check the memory status of Xiaomi: the complete guide

Xiaomi smartphones today have a complex architecture where every megabyte of RAM or internal memory plays a key role in system performance. When a device starts to run slower, applications fly out and the interface slows down, the first thing to do is to suspect that resources are scarce or that the drive is physically damaged. Memory diagnostics are the first step to determine whether a software failure is a problem or if a deeper intervention is needed.

Users often confuse the concepts of free space and technical health of the drive, although these parameters directly affect the stability of the MIUI or HyperOS. In this article, we will examine all available methods of verification, from built-in engineering menus to professional utilities that will help to identify hidden problems before the phone stops turning on.

Understanding the current state of RAM and ROM gives you a complete advantage in managing your device, and you will learn to distinguish between regular cache filling and critical file system errors, which will extend the life of your gadget without going to the service center.

⚠️ Warning: Before conducting deep memory testing, be sure to back up all important data as some tests can lead to information loss if critical failures are detected.

Xiaomi’s built-in diagnostic tools

The safest and most affordable way to do initial verification is to use a full-time security application that is pre-installed on all smartphones of the brand.This software has access to system logs and can quickly assess file integrity and current resource loading without installing third-party software.

To run the check, you need to open the Security app (shield icon), scroll down and select Memory Cleanup or Accelerate. However, for a deeper analysis, go to the Services (or Tools) section and find the Memory Check feature there, which scans the device for damaged sectors and software conflicts.

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Use the built-in cleanup regularly, but don’t rely on it entirely to diagnose physical damage to memory chips.

Scan results are usually presented as color indicators, where green indicates normal, and red or yellow indicates problems. The system can suggest optimizing storage by deleting temporary files, which often solves space shortage problems, but does not fix the physical defects of the chips.

• 🔍 Quick scanning of the system for errors.
• 🧹 Automatic cleaning of cache and residual files.
• 📊 Visualization (employment) of the storage by category.
• ⚡ Optimizing background processes to release RAM.

Using the CIT Engineering Menu for Tests

A more advanced method available on Xiaomi devices is to log into the CIT (Customer Integration Test) engineering menu, which is a hidden section designed to factory-check all components, including a detailed memory test that loads the drive cells to identify broken sectors.

To get into the testing menu, open the Phone app and dial the combination ##6484##. If the code doesn't work, try the alternative ##4636##, although it's more commonly used to check the network.

During the test, the system will record and read the test data, which puts a high burden on the memory controller. Interrupting this process can lead to a software error of the file system, so wait for the Pass or Fail to appear. If the test is completed successfully, but the problems persist, the cause may be in the software.

⚠️ Note: Do not try to change the settings in other sections of the engineering menu unless you are sure of their purpose, as this may disrupt the operation of radio modules or display.

Checking RAM (RAM) through ADB

For users who are ready for more technical interaction, an excellent tool is ADB (Android Debug Bridge) debugging, which allows you to access system logs and run specialized commands to check the state of RAM, which are not available through a regular interface.

First, you need to activate the developer mode by clicking on the build number several times in the About Phone section, and then enable Debugging over USB. By connecting the smartphone to the computer, you can execute a command to view the memory status and detect ECC (Error Correction Code) errors if they are logged in by the system.

adb shell dumpsys meminfo

This team will output a detailed report on how apps use available RAM and show the total amount of free and occupied memory.While Android doesn't always provide direct access to the RAM broken cell test due to security limitations, analyzing dmesg logs through ADB can reveal critical memory-related kernel errors.

• 💻 Access to deep system logs of the device.
• 📝 Ability to save reports in text format.
• 🛠 Accurate diagnosis of memory leaks with specific applications.
• ⚙️ Verification of work ZRAM and swap on the device.

Third-party applications for stress testing

When built-in tools aren’t enough, Google Play’s specialized tools, such as the Throttling Test CPU, AIDA64, or Phone Info SAM (which works on Xiaomi), come to the rescue, creating an artificial load by filling up memory with random data and checking its integrity after reading.

The Stress Test, which loads the processor and memory to maximum temperature and frequency, is particularly noteworthy, and if the phone freezes, reboots, or artifacts appear in the process, it is a sure sign of component instability, possibly caused by degradation of memory crystals or overheating.

AIDA64 also provides comprehensive information about the type of memory installed (LPDDR4X, LPDDR5), its frequency and current status, which is useful for comparing the claimed characteristics with real ones, especially if you suspect that you have sold a device with replaced or re-sold components.

Analysis of storage occupancy and fragmentation

Unlike mechanical hard drives, smartphone flash memory (eMMC or UFS) is not fragmented in the classical sense, but its performance drops critically when filled. When less than 10-15% of the total is free, the controller has nowhere to place temporary files and even out the wear of the cells.

Check the Warehouse section in the settings to see the detail. If the Other category takes up suspiciously much space, it could be remnants of deleted apps or messenger cache that is not deleted by standard means. Cleaning this section often returns the phone to its former frolic.

It is important to understand that constant recording and overwriting of data (for example, active use of torrents or recording 4K video) accelerates the wear of cells. If you notice that the speed of copying files has dropped sharply, this can signal a nearing end-of-life state of the drive.

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Filling internal storage by more than 90% results in exponential reductions in write speed and can cause cyclical system reboots.

Signs of memory failure and methods of solution

There are a number of symptoms that directly indicate memory problems that cannot be ignored. If your Xiaomi is starting to behave strangely, it is worth a thorough diagnosis, as delay can lead to complete data loss.

Among the main features are:

• 🔄 Infinite reboot cycle (bootloop) after update.
• 📉 A sharp drop in the speed of the interface and applications.
• ❌ Errors When Installing or Updating Programs from Google Play.
• 📸 Distortion or lack of saving of photos and videos.

If software cleaning and resetting methods don't work and tests show errors, it's likely that the problem is hardware-based. In modern smartphones, memory is soldered on the board, and replacing it requires professional equipment and soldering skills. BGA-component.

⚠️ Warning: Attempts to “warm up” memory with a hairdryer or put the phone on the battery, which can be found in old tips, in 99% of cases lead to final breakage of the device and melting of the plumes.

Frequently Asked Questions (FAQ)