How to clean RAM on Xiaomi Redmi Note 7: the complete guide

Your Xiaomi Redmi Note 7 is starting to slow down, apps are spontaneously shutting down and games are laying down? 90% of the time is due to overloaded RAM (RAM). Despite the 3 or 4GB of RAM in this model, unoptimized background processes and MIUI features can eat resources to a critical level. Unlike flagships, budget smartphones are worse at managing memory - and the Redmi Note 7 is no exception.

In this article, you will find 7 proven ways to clean RAM, from basic to advanced, including hidden MIUI 12/13/14 features and secure workarounds without root rights. We will also discuss why the standard Clean button in the multitasking menu works ineffectively, and what to do if memory is clogged again after 5 minutes. All instructions are tested on Redmi Note 7 with current versions of the firmware (2023-2026).

Why is the RAM on the Redmi Note 7 clogged so fast?

The Snapdragon 660 processor and memory architecture in the Redmi Note 7 have two key features that affect RAM management:

• 🔹 Aggressive cache MIUI: The system actively caches frequently used applications to speed up their launch, which in practice means that even after the program is closed, its processes can remain in memory.
• 🔹 Background Limitation: In the default settings, Redmi Note 7 allows only 2-3 applications to run in the background (depending on the version). MIUI). The rest are closed, but not always correctly.
• 🔹 Memory Leaks in Older Versions MIUI: Update to update MIUI 12.5 There was a bug in the system that caused some system services (e.g. com.miui.analytics) to take up to 300-500MB of RAM without cause.

Another common problem is app autoloads, and many apps (especially messengers and social media) are added to autoruns without your knowledge, such as Facebook or AliExpress can run up to 5 background processes at a time, even if you haven’t used them in a long time.

Method 1: Manually clean through the multitasking menu

The most obvious, but not always effective, method is that many users make the mistake of clicking the Clear All button on recent app menus, which only closes the visible processes, but does not affect:

• 📱 Hidden system services (such as Android System or MIUI Daemon)
• 🔄 Background tasks of applications with auto-start rights
• 🗑️ The cache of the core, which takes up to 200-300 MB

How to clean properly:

1. Open the menu of recent apps (swipe up from the bottom edge of the late screen).
2. Don't press Clear All! Instead:
3. Close each application manually by swiping it up or sideways.
4. For system processes (such as Settings or Google Play Services), hold your finger on the icon and select Application Information → Stop.

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If the Stop button is inactive, it means that the process is protected by the system, in which case only a reboot or special utilities will help (see Method 4).

After manual cleaning, check the free memory in Settings → About Phone → Memory Status. If the amount of free RAM has not changed, move to the next method.

Method 2: Optimizing Auto-Run Applications

According to Xiaomi, up to 40% of the RAM download on the Redmi Note 7 is from apps that run automatically when you turn on your phone or connect to the Internet. Disabling autorun can free up to 1-1.5 GB of memory in the background.

How to turn off autostart:

1. Go to Settings → Applications → Application Management.
2. Slip on the three dots in the upper right corner and select AutoRun.
3. In the list, mark applications that should not be automatically launched.

📌 Messengers (Viber, Telegram – leave only 1 main one)

📌 Social networks (Facebook, Instagram, TikTok)

📌 Games (even if you don’t play them, they can be updated in the background)

📌 Weather widgets and news aggregators

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After you turn off autoplay, restart your phone. It can take up to 10 minutes for the changes to take effect completely, as the system syncs the settings to the Android kernel.

Method 3: Using the built-in MIUI optimizer

MIUI has a hidden deep memory cleaner tool that doesn't show up in the main menu, called Security Scan, and is available through the Security app, which not only closes the background processes, but also:

• 🧹 Cleans the cache of the core (kernel cache)
• 🔍 Optimizes the use of swap files (virtual memory)
• 🛠️ Fixes "hungry" system services

Step-by-step:

1. Open the Security app (the shield icon).
2. Go to the Optimization tab (or Speed Boost in English).
3. Slip on the Deep Cleanup button.
4. Wait for the scan to be completed (it can take up to 2-3 minutes).
5. Click Optimize and confirm the action.

After optimizing, check the Memory Status section in the settings. If the amount of free RAM has increased by less than 300 MB, then the problem lies deeper (see Methods 5-7).

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The built-in MIUI optimizer works better than standard cleaning through the multitasking menu, but does not replace manual auto-run and background process setup.

Method 4: Forced shutdown of system processes (without root)

Some MIUI system services take up RAM even when not in use, such as:

To stop unnecessary processes:

1. Go to Settings → Applications → Application Management.
2. Turn on the system processes display (tap on three points → Show system).
3. Find the process from the table above and open it.
4. Press Stop (Force Stop)
5. Confirm the action in the dialog window.

⚠️ Warning: Do not stop processes with names like android., media. or surfaceflinger - this can cause the system to crash and reboot the phone).

Method 5: Configure a swap file (virtual memory)

The Redmi Note 7 supports zRAM (real-time memory compression) technology, which allows you to use part of the internal drive as an additional RAM, which is disabled by default or inefficient.

To activate and optimize swap:

1. Install Developer Options (if you haven’t already turned on Developer Mode: Settings → About Phone → MIUI Version → tap 7 times).
2. Go to Settings → Additional → For developers.
3. Find the option Virtual Memory Optimization (Swap) or Memory Optimization.
4. Set a value of 1.5 GB (if you have 3 GB of RAM) or 2 GB (if 4 GB of RAM).
5. Reboot the phone.

After you set up the swap file, check the performance in AnTuTu Benchmark or Geekbench. The difference in multitasking can be as high as 15-20%.

⚠️ Warning: Excessive swap file enlargement (over 2 GB) reduces the lifetime of internal memory (eMMC) due to frequent write operations. Optimal size is 25-30% of physical RAM.

Method 6: Reset the partition cache (without data loss)

Cache partition stores temporary update files, system logs, and recovery data. On Redmi Note 7, this partition can grow to 500 MB-1 GB, taking up not only disk space, but also indirectly affecting RAM through background cleanup processes.

How to reset the cache section:

1. Turn off the phone.
2. Press the Power + Volume buttons at the same time and hold for 10 seconds until the Mi logo appears.
3. In the Recovery Mode, select the language (use volume buttons for navigation and power button for confirmation).
4. Go to Wipe & Reset → Wipe Cache.
5. Confirm the action and wait for the completion (it will take 1-2 minutes).
6. Choose Reboot. → Reboot to System.

This procedure does not delete user data, but resets:

• 🗃️ Update cache OTA
• 📝 Logs of system errors
• 🔄 Temporary recovery files

Method 7: Alternative launchers for memory optimization

The standard MIUI launcher consumes up to 300-500MB of RAM due to animations, widgets and background services, and replacing it with a lightweight analog can free up to 20% of RAM. The best options for the Redmi Note 7 are:

How to install an alternative launcher:

1. Download. APK-file from the official website (for example, Nova Launcher).
2. Install the file by allowing installation from unknown sources (Settings → Applications → Special Rights).
3. After installation, click the Home button and select the new launcher as the main one.
4. In the launcher settings, turn off animations and widgets (saves up to 100 MB of RAM).

If you have problems with notifications after changing the launcher, return the standard MIUI Launcher in the default settings.

Frequent Questions (FAQ)