Why is RAM clogged on Xiaomi smartphones and how to fix it

Have you noticed that your Xiaomi smartphone is slowing down, apps are spontaneously closing, and Task Manager displays 90%+ RAM loading even at minimal load? This is a typical problem for users of brand devices, and it is not always associated with a lack of physical memory. Most often, MIUI software features, background processes or incorrect system settings are to blame.

In this article, we will discuss in detail the 7 main causes of memory overload on Xiaomi, including hidden MIUI mechanisms that actively consume resources. You will learn how to distinguish normal from pathological behavior, which applications most often “eat” RAM, and what to do if even after a reboot memory is clogged in 10-15 minutes. All recommendations are tested on models from Redmi Note 10 to Xiaomi 14 Ultra and are relevant for MIUI 14/15.

1. How does RAM work in Xiaomi smartphones: norm vs pathology

Before looking for problems, it’s important to understand how MIUI manages RAM. Unlike “pure” Android, Xiaomi’s firmware aggressively caches data into RAM to speed up app re-launching. This is normal behavior, but it’s often perceived as “cumulative.”

According to Xiaomi’s internal documentation, the system considers the optimal RAM load to be 70-85%. Exceeding this threshold signals problems. For example, on the Redmi Note 12 Pro+ with 8 GB of RAM, it will be a pathology when after 30 minutes of downtime less than 1 GB is free, and background processes take more than 6 GB.

• 📊 Normal consumption: 60-85% RAM with active use, 30-50% standby.
• ⚠️ Pathology: Over 90% of downloads within an hour of rebooting, lags when opening standard apps.
• 🔄 Critical case: Memory clogged to 99% post 5-10 After a minute, the smartphone stops responding to touch.

To objectively assess the state of memory, use the hidden diagnostic menu: go to Settings → About Phone → MIUI version and tap 7 times on the Kernel line. In the menu that opens, select Memory Info - here you can see detailed statistics on processes, including real RAM consumption (rather than a simplified version from the Task Manager).

2. Hidden MIUI mechanisms that "steal" RAM

MIUI firmware contains several built-in services that consume RAM actively, but do not appear in a standard task manager, and their work often causes a lack of RAM, especially on budget models with 4-6 GB of memory.

The most voracious process is com.miui.home (launcher), which can take up to 500-700 MB of RAM. On models with MIUI 14+, it can be replaced with a third-party launcher (for example, Nova Launcher), which will reduce consumption by 200-300 MB. To turn off system services, ADB rights will be required:

adb shell pm disable-user --user 0 com.miui.analytics


adb shell pm disable-user --user 0 com.xiaomi.midrop

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Before disabling system processes via ADB, back up your data. Some services (e.g. com.miui.weather2) may cause widgets to work when disabled.

3. Applications that “eat” RAM: top-5 guilty

Analysis of Xiaomi logs shows that 80% of RAM overloads are due to 5 types of applications, and not all of them appear in Task Manager as active.

• 🎮 Even after the closing of Genshin Impact or PUBG Mobile can leave in memory up to 1 GB of “garbage” due to incorrect operation of the mechanism of freeing up resources in the mobile phone MIUI.
• 📷 Social media: TikTok, Instagram and Facebook use up to 400MB of RAM each, even in a folded state, due to background content loading.
• 🔄 Optimizers: Paradoxically, applications like Clean Master or DU Speed Boosters are self-consuming 200-300 MB, creating the illusion of cleaning.
• 📡 VPN/Proxies: Services of the type 1.1.1.1 or Psiphon is kept in memory until 500 MB due to constant traffic encryption.
• 🤖 Bots and autoclickers: Auto-playing apps (like AutoTouch) can leak memory, taking up to 800MB.

To identify the culprit, use Developer Options (includes taps on the About Phone build number). From the developer menu, select Memory → Memory used by apps. This shows the actual consumption of each application over the past 3/6/12/24 hours.

4. Viruses and malware: a hidden threat to RAM

One of the most insidious sources of RAM overload is hidden mining bots and advertising Trojans that disguise themselves as system processes, such as the HiddenAds virus (spread through the use of a computer system). APK-files) can take up to 1.5 GB of RAM, showing ads in the background.

Signs of infection:

• 📈 A sharp increase in RAM consumption at night (when the smartphone lies idle).
• 🔋 Fast battery discharge even in aircraft mode.
• 📦 Appearance of unknown applications in Settings → Applications (e.g. com.system.update or Android Service Library).

To check, use Malwarebytes or Kaspersky Mobile in deep scan mode. Pay special attention to /data/app folder, as many viruses hide there under names similar to system files (for example, com.android.google.play.updater).

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If RAM consumption has not returned to normal after removing the suspicious application, reset to factory settings. Some viruses are integrated into system processes and are not removed by standard methods.

5. Developer Settings Mistakes That Kill RAM

Many Xiaomi users include Developer Options to speed up animations or debugging, but some options can multiply memory consumption.For example, the Force 4x MSAA option (aliasing) forces the GPU to reserve additional buffers in RAM, which on weak devices leads to lags.

List of dangerous settings:

• 🔧 Force GPU rendering – increases the load on video memory, indirectly occupying RAM.
• 🖥️ Force desktop mode – PC emulation requires additional 300-500 MB.
• 🔄 Don’t keep activities – it seems useful, but it’s not MIUI It causes fragmentation of memory.
• 📊 Enable OpenGL traces – debugging mode that eats up to 1 GB of RAM.

To return the settings to safe values, do:

1. Open the settings → Additional → for developers.
2. Find the option Reset to default.
3. Confirm the action and restart the device.

Disable Force 4x MSAA|

Install Window animation scale = 1x|

Turn off Force GPU rendering|

Turn off the background process limit (set the standard limit)-->

Hardware problems: when the "iron" is to blame

If all software methods failed, the reason could be a defect in the RAM or controller.

• 🔌 Faulty RAM connector: On some models (for example, POCO F3) because of overheating, the memory contact departs, which leads to the "loss" of part of the RAM by the system.
• 🔥 Overheating: Higher temperatures 60°C memory controller starts to reserve additional buffers, which increases the consumption of the memory. 20-30%.
• 🔋 Battery wear: At a charge below 15%, the system is forced to limit performance, but some processes (e.g., mediaserver) begin to incorrectly release memory.

To diagnose hardware problems:

1. Install AIDA64 and check the Memory partition – if Total Memory is smaller than claimed (e.g. 5.5GB instead of 6GB), it’s a sign of a chip problem.
2. Run the stability test in the CPU Throttling Test. If the RAM consumption schedule jumps chaotically, a defect in the controller is possible.
3. Check the temperature through the Cool Tool. If RAM heats up above 50°C in idle, it's an anomaly.

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On removable battery models (such as the Redmi 4X), try to remove and re-insert the battery – sometimes this temporarily solves the problem with lost memory.

7 Radical Solutions: When Nothing Helps

If all of the above methods have not worked, radical measures remain:

• 🔄 Reflashing to custom software: Installing LineageOS or Pixel Experience can reduce RAM consumption on the Internet 30-40%, But you'll need to unlock the loader.
• ⚙️ Reverse to the old version MIUI: On some devices (for example, Xiaomi Mi 9) MIUI 12.5 is more stable than the MIUI 14.
• 🔧 Replacement of RAM chip: On models with soldered memory (for example, POCO X3 Pro) chip soldering is possible, but it is expensive and risky.

For custom software flashing:

1. Unlock the bootloader through the Mi Unlock Tool (requires a Mi Account binding and wait 7 days).
2. Install TWRP Recovery for your model.
3. Sweep through custom firmware (recommended ArrowOS for maximum memory optimization).

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Before taking any drastic action, check whether your model is covered by the warranty.Self-flashing will void Xiaomi's warranty obligations.

⚠️ Note: On devices with Dynamic RAM Expansion (e.g. Xiaomi) 12T) Disabling this function can lead to the opposite effect – the system will not have enough virtual memory, and it will begin to use physical RAM even more actively.

FAQ: Frequent questions about memory on Xiaomi