How to check the working memory (RAM) Xiaomi smartphone: from standard tools to deep diagnostics

RAM (RAM) — One of the key components of the smartphone, which depends on the speed of work MIUI, Multitasking and stability of the system, if your Xiaomi (including Redmi models, POCO Black Shark started to slow down, spontaneously close applications or issue errors like java.lang.OutOfMemoryError, the problem can lie in the RAM. But how to make sure that the memory is to blame, not the processor, drive or firmware?

In this article, we will discuss 5 working ways to check RAM on Xiaomi devices – from built-in tools MIUI to professional utilities and teams ADB. You'll find out how:

• 🔍 Check the current loading RAM and identify "gluttonous" applications;
• 🛠️ Run hidden memory tests through the engineering menu;
• 📊 Analyze the state of RAM modules using third-party applications;
• 🔧 Identify hardware faults (e.g., damaged memory chips).

Important: The methods vary in complexity. Start with the first two sections, they will work for beginners, and if you need deep core testing (for example, for diagnostics after a phone drop or repair), go to the sections about the basics. ADB and MemTest86.

1. Checking the loading RAM through standard tools MIUI

The easiest way to assess the state of RAM is to use built-in tools. MIUI. They will show how much memory is occupied, which applications consume it, and help to quickly close unnecessary processes.

To open the memory monitor:

1. Go to Settings. → The phone. → Status of the system.
2. Tapping on Memory (or Using Memory in New Versions) MIUI).
3. The screen will display the loading schedule RAM categorized: 📱 System processes (cannot be closed manually); 🎮 Appendices (can be cleared); 🔄 Cash (automatically released if memory is lacking).

If there is less free memory 15-20% total volume (for example, less than the 1 GB on a device with 6 GB RAM), It can cause lags:

• 🧹 Click Clean to close the background apps;
• 🔄 Reboot your phone – it will reset the cache;
• 🚫 Check if there are any suspicious processes on the list (e.g. com.android.XXX with high consumption).

⚠️ Warning: If the memory is refilled in a few minutes after cleaning, it is a sign of memory leak. MIUI.

2. Hidden diagnostic menu (#4636##)

Xiaomi smartphones (as with most Android devices) have a hidden engineering menu that provides advanced information about the system, including detailed data about the system. RAM. To open it:

1. Open the phone application;
2. Enter the combination: ##4636##;
3. In the menu that appears, select Phone Information (or Usage statistics in global firmware).

Here you'll see:

• 📊 Total volume RAM and accessible memory;
• 📉 Use schedule for the last few minutes;
• 🔍 Process list with memory consumption (including hidden services).

Pay special attention to the Private Dirty column, which shows how much memory can't be cached, if it's too high (e.g., too high, >500MB for one application, this may indicate an error in the code of the program.

Is the menu open after entering #4636##?

Does it show the correct volume? RAM (Compare it to the characteristics of the model)?

Are there any processes with abnormally high private dirty?

Does it exceed the loading? RAM 80% in downtime?-->

3. Testing RAM through ADB (power-user)

If standard methods don’t give the full picture, you can use Android Debug Bridge (ADB) — A debugging tool that can provide low-level memory information, which is suitable for diagnosing hardware failures (e.g., damaged memory cells) or for deep analysis of leaks.

To check. RAM through ADB:

1. Install Platform Tools on PC
2. Activate Debugging on USB in the developer settings (Settings) → The phone. → Version. MIUI — Tap 7 times, then return to the additional → For developers);
3. Connect your phone to your PC and execute the commands:

adb shell


su




cat /proc/meminfo

In conclusion, pay attention to the following parameters:

If MemFree is close to zero and SwapTotal suddenly came along (though it didn’t exist before), it could indicate a critical memory shortage or kernel failure.

⚠️ Note: Su commands require root rights. On unsolicited devices, use an alternative command without su: adb shell dumpsys meminfo It will show memory data for each process, but without low-level details.

4. Testing applications RAM: pick?

If you need visualization or automated analysis, use third-party utilities. We tested 7 popular applications and selected 3 most accurate for Xiaomi devices:

• 📊 CPU-Z — Detailed information about the modules RAM (Manufacturer, type, frequency. Plus: runs without root. Minus: doesn't test for errors. How to find data RAM into CPU-Z? Open the Memory tab. Notice the lines: Type (LPDDR4X/LPDDR5), Size (total volume), Channels (should be) 2 Dual-channel).
• 🔧 MemTest86 — It's a professional test for broken cells, plus: it detects hardware defects. 💡To launch MemTest86 Xiaomi needs to unlock the bootloader and flash a special image.
• 🛡️ RAM Test Pro, which tests memory speed and stability, plus: there are stress tests, minus: paid version for full functionality.

For most users, Xiaomi is enough. CPU-Z + tool-in MIUI. If you suspect physical damage RAM (For example, after the phone crash, no MemTest86 don't do it.

💡

Apps like Clean Master or DU Speed Booster is not tested RAM, They're useless for diagnostics and can even be harmful by deleting important system files.

5. Diagnostics of hardware failures: when it is not software optimization to blame

If all tests show that there is enough memory, but the phone is still slowing down or restarting, the problem may be physical damage to the modules. RAM. This is relevant for devices:

• 💥 After falls or bumps;
• 🔥 Overheating (e.g., overheating, POCO F1 Black Shark with active cooling);
• 🔧 After unqualified repairs (for example, replacing the screen with the disconnection of the plumes).

Signs of hardware failures RAM:

• 🐢 Freezes when starting the camera or games;
• 🔄 Accidental reboots (especially when charging);
• 📵 Artifacts on screen (stripes, flickers);
• 🚨 Errors in logs (kernel panic, memory corruption).

To confirm the hardware malfunction:

1. Check the logs through ADB: adb logcat | grep -i "memory\|Search for lines with Out of memory, Segfault, or hardware fault.
2. Launch it. MemTest86 (see previous section).
3. If you have root, check the status of the chips: adb shell su cat /sys/kernel/debug/ram_console

⚠️ Note: On Xiaomi devices with virtual RAM (For example, the Redmi Note 11 Pro+ Memory Extension technology can mask hardware failures as memory deficits. RAM in settings (Settings) → Extended. → Memory. → Virtual RAM) pretest.

6. Optimization RAM: How to reduce stress without root

If tests show that your memory is fine but still fills up quickly, try these optimization methods (without risking a guarantee):

• 🔄 Turn off animation: Activate for developers and set: The scale of the animation window = 0.5x, Scale of transition animation = 0.5x. It will reduce the burden on you. GPU and RAM.
• 🚫 Limit background processes: C Settings → Annexes → Application Management Disable AutoRun for Unnecessary Programs.
• 📱 Use "Light Mode": In Settings → Special opportunities → Easy mode (simplifies interface and reduces memory consumption).
• 🔧 Update. MIUI: In new versions, the memory management mechanism is optimized (for example, in the MIUI 14 added Smart function RAM Boost).

For 4GB devices RAM or less (e.g. Redmi) 9A or POCO M3) recommended:

• Use Lite versions of applications (Facebook Lite, Messenger Lite);
• Disable Google Play Services for unneeded accounts
• Install an alternative launcher (like Nova Launcher) that consumes less memory than a standard launcher. MIUI Launcher.

7. When to contact the service: fault criteria RAM

Not all problems with RAM You can do this software. Contact Xiaomi Service Center if you want to:

Xiaomi Service Center can:

• 🔧 Chip-sweetening RAM (if the contacts are damaged);
• 🔄 Replace the motherboard (in case of serious defects);
• 📡 Switching clean firmware at a low level (through a EDL-regime).

Cost of repair RAM Xiaomi ranges from 3,000 to 15,000 rubles, depending on the model and type of malfunction. For flagships (for example, Xiaomi 13 Ultra), it is sometimes cheaper to buy a new phone than to fix memory.

FAQ: Frequent questions about verification RAM Xiaomi