Where does RAM disappear on Xiaomi: a complete analysis of the problem

Why is Xiaomi’s RAM “melting” in front of your eyes?

You open the Task Manager on your Xiaomi Redmi or POCO, and there, instead of the promised 6-8 GB of RAM, only 1-1.5 GB is free, even though only 2-3 applications are running. The situation is familiar? Performance drops, games are lagging, and the system is constantly hanging out for half a second. What is it?

The problem isn’t always the weak hardware. Even the flagship Xiaomi 13 Ultra or Black Shark 5 Pro models suffer from a lack of RAM — MIUI features, aggressive Android optimization and background processes are to blame. In this article, we’ll break down 7 key reasons why memory is leaking and give practical solutions for each of them. Without general tips like “clean the cache” — only specific actions with explanations.

Spoiler: 80 percent of the time, it's not viruses or crooked software that's to blame, but built-in MIUI mechanisms that Xiaomi doesn't advertise. For example, Memory Extension can help or hurt, which is something that few people know.

1. "Invisible" MIUI system processes

MIUI is not just a shell over Android, but a separate ecosystem with dozens of background services, many of which run automatically and don't show up in Task Manager as normal applications.

• 🔍 Security App (com.miui.guardprovider) – Antivirus and security monitoring. constantly scans files and consumes up to 300-500 MB of RAM.
• 📊 Analytics (com.miui.analytics) – collects data about smartphone usage (even if you have disabled Personalization.
• 🔔 Push service (com.xiaomi.xmsf) – responsible for notifications from Xiaomi (including advertising) can “eat” up to 400 MB when actively using it.
• 🌐 MIUI Daemon (com.miui.daemon) - manages updates and syncs. 24/7.

These processes can't be removed without root rights, but they can be limited. For example, through Settings → Applications → Application Management → Three dots (menu) → Show all the processes you will see a full list. Disable them completely (this will cause crashes), but you can:

Disable Analytics Collection in Settings → About Phone → User Reviews

Prohibit AutoRun for Security App and Analytics

Limit background activity through Settings → Battery → Energy Saving Mode → Limit background activity

Install an alternative launcher (such as Nova Launcher) to reduce the load from the launcher. MIUI Home-->

⚠️ Warning: Disabling com.miui.guardprovider will deprive you of protection from viruses and blocking malicious sites. If you use a third-party antivirus (for example, Malwarebytes), you can safely disable.

2. Memory Extension function: pros and cons

Starting with MIUI 12.5, Xiaomi has added Memory Extension (aka RAM Expansion or Virtual RAM) technology, meaning that the smartphone uses some of the internal memory (ROM) as an additional RAM. Sounds good, but in practice it's:

• ✅ Pros: Allows “add» 1–3 GB RAM on models with 4/128 GB 6/128 GB (e.g. Redmi Note) 11 Pro).
• ❌ Cons: Slows down, as ROM is 10–100 times slower than real RAM. Accelerates the wear of flash memory (especially on budget models with eMMC instead of real RAM). UFS). Not all applications support virtual memory (games, heavy editors).

How to check if the function is enabled:

1. Go to Settings → About the phone → All the characteristics.
2. Find RAM – if it says, for example, 6 GB + 2 GB, then Memory Extension is active.

You can turn it off like this.

Settings → Additional → Memory Extension →

Yeah, it helps a lot.

Yeah, but it's slowing down the system.

No, I turned it off.

I don't know what it is.-->

⚠️ Note: On some models (POCO F4 GT, Xiaomi 12T) Disabling Memory Extension requires a reboot, and then there's less free RAM, but the system will be more stable.

3.App cache and 'garbage' in the background

Android and MIUI are using cache to speed up the process, and the problem is that the cache grows to giant sizes over time, and the system doesn't always clean it automatically.

• 📷 Gallery and Google Photos can accumulate up to 1-2 GB of thumbnails and previews.
• 🎮 Games (Genshin Impact, PUBG Mobile Stores Textures and Updates in Cache (up to 5-10 GB!).
• 🌍 Browsers (Chrome, Mi Browser) store copies of pages, cookies and autocomplete data.

How to clean the cache correctly (without harm to the system):

1. Manual cleaning: Settings → Apps → Select App → Storage → Clear cache Don’t click “Clean Data” – it will delete settings and accounts!
2. Auto Clean: Enable the option in Settings → Storage → Cleanup → Auto Cleanup.
3. For games: Use the built-in Game Turbo (Settings → Special Features → Game Turbo → Memory Cleanup).

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If the app is slower after cleaning the cache, don't worry. This is temporary: Android reassembles the cache in 1-2 launches.

4. Zombie Processes: Why Apps Don't Close

You swipe the application in Task Manager, but it reappears in the list after 5 minutes. Why? It's about the Android Process State engine, which divides processes into 5 categories:

1. Foreground (active) – visible to the user.
2. Visible – for example, a chat in Telegram, folded into the background.
3. Service – music in the background, downloading files.
4. Cached – “sleeping” applications ready for quick launch.
5. Empty: Processes without activity that the system can kill.

MIUI aggressively caches applications (Category 4) to open faster, but that never frees the RAM completely.

• 🛑 Disable Autostart: For each application in Settings → Annexes → Auto-start.
• ⚡ Use Greenify: App to “freeze” background processes (requires root to work fully).
• 🔄 Reboot your phone once every 1-2 days: This resets cached processes.

⚠️ Note: Do not use Google Play memory boosters (such as Clean Master or Google Play). DU Speed Booster. Not only does it not help, but it can also increase RAM consumption through its own background services.

5. MIUI Updates and Background Boot

Xiaomi regularly releases updates for MIUI, and this is one of the main reasons for the sudden disappearance of RAM.

• 📥 Downloads service pack (1-3 GB) in the background.
• 🔄 Unpacks it in a temporary folder (/cache).
• 🛠️ Checks file integrity (boots processor and RAM on 30-50%).

How does this affect memory:

• During booting, free RAM becomes 1-1.5 GB less.
• If the update is “hanging”, the com.android.updater process can block up to 2 GB of memory.
• After installation, temporary files remain, which are not always cleared automatically.

What to do:

1. Turn off automatic download updates: Settings → About phone → System update → Three points → Settings → Auto download
2. Remove the update cache manually: Settings → Applications → System Update → Storage → Clear the cache
3. If the update is “hanging”, restart the phone in Safe Mode (click the Power button → Restart in Safe Mode).

6.Viruses, Mining and Hidden Threats

If RAM disappears too quickly (for example, in 10-15 minutes of downtime), there is a risk of infection with a virus or hidden mining.

• 🔥 The phone is warming up without loading.
• 📉 The battery is discharged in 3-4 hours (at normal use).
• 🕵️ Unknown processes appear in the Task Manager (com.android.system, update.service, etc.).

How to check:

1. Install Malwarebytes or Kaspersky Mobile and run a deep scan.
2. Check the list of installed apps for suspicious ones (e.g. Flash Player, Super Cleaner).
3. Open Settings → Battery → Battery → Use the battery and see which processes consume the most energy.

If you find a virus,

• Remove the infected app.
• Reset your phone to factory settings (Settings → About Phone → Resetting).
• Do not restore data from backup – the virus can come back!

⚠️ Note: Mining bots are often disguised as system processes (e.g. com.qualcomm.atfwd). If you are not sure, compare the name of the process to the official list of legitimate Android services.

7. Incorrect Developer Settings

Many users include a developer mode to overclock animations or debug apps, but some settings can increase RAM consumption:

How to disable unnecessary settings:

1. Go to Settings → About Phone → MIUI version (click 7 times to turn on Developer Mode).
2. Back to Settings → Additionally. → For developers.
3. Turn off all unnecessary options (see table above).

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If you're not sure what the setting is in the developer menu, you should not touch it. Incorrect settings can lead to system failures.

FAQ: Frequent questions about memory on Xiaomi