How to clean up RAM on Xiaomi Redmi Note 7: from built-in tools to hidden MIUI chips

Why Redmi Note 7 is slowing down and how it relates to RAM

Your Xiaomi Redmi Note 7 is slowing down, apps are slowing down, and games are slowing down? 90% of the time, it's overloaded RAM. Even with 3/4 GB of RAM on board, the device eventually starts to choke on background application activity and system processes. But don't rush to drop the phone to factory settings - we've collected all the working ways to clean up RAM, including hidden MIUI features that are not written in the official instructions.

The main problem with the Redmi Note 7 is the aggressive MIUI optimization, which tries to keep applications in memory for quick launch. In theory, this is convenient, but in practice, it leads to the fact that even after the applications are closed, they continue to hang in the background, eating precious megabytes of RAM, and over time, cached data accumulates, which the system does not always clean automatically.

In this article you will find:

• 🔍 Diagnostics of the current state of RAM and identification of “gluttonous” applications
• ⚡ Quick cleaning methods without installing additional software
• 🛠️ Advanced methods for power users (including ADB)
• ⚠️ What can't be done to avoid damaging the system

How to check the RAM boot on Redmi Note 7

Before we start cleaning, we need to understand how critical the situation is. MIUI has a built-in memory monitor, but it's hidden in the depths of the settings. Here's how to find it:

1. Open the Settings. → The phone.
2. Tap 5 times on the MIUI version to activate the developer mode
3. Return to the main settings menu and select Additional → For developers
4. Find the Memory section - here you can see a real-time RAM usage graph.

Pay attention to two key indicators:

• 📊 Used – How much memory is used right now
• 🔄 Cache – how much memory is given to accelerate the launch of applications (this is not always bad – cache helps save battery power)

💡

If you see a mediaserver or android.system process consuming >300 MB in the Memory section, that's OK with MIUI. Don't try to close it manually!

For more detailed analysis, use third-party tools like Developer Quick Settings (available on Google Play).

• 📱 Exact memory allocation by application
• 🔥 Hot processes that actively consume resources
• 📉 History of RAM usage in the last 24 hours

Method 1: Quick cleaning through the latest app menu

The easiest method that works on all versions of MIUI for Redmi Note 7 is:

1. Click the square button at the bottom of the screen (or swipe up and hold your finger for newer versions of MIUI)
2. At the bottom of the screen will appear the button Clean all (or the icon of the basket)
3. Slip on it – the system will close all background applications

But here's the caveat: it doesn't clean up system processes, it just cleans user applications, and it shuts down everything, including service tasks:

• 🔧 Press the Clean Up button for 2 seconds
• 🔄 In the menu that appears, select Deep Cleanup

Keep all open documents

Close the messengers (so as not to lose unsent messages)

Disconnect from important calls (VoIP applications will also close)

Check that there are no active downloads-->

⚠️ Warning: Deep Clean will reset all active notifications and may interrupt background sync (e.g., email or cloud services).Do not use this method while updating applications!

Method 2: Optimization with "Security" (built-in MIUI cleaner)

Xiaomi has built a powerful system cleanup tool into MIUI that many users ignore, not only frees up RAM, but also removes unnecessary cache:

1. Open the Security app (Icon with shield)
2. Go to the Optimization tab
3. Click Clean in the Memory section
4. Wait for the process to be completed (usually 10-30 seconds)

The same section may include:

• 🗑️ Clear the application cache (Space section)
• 🚫 Block Auto-Run Unnecessary Applications (Section Auto-Run)
• ⚡ Enable Performance Mode for Games (Game Turbo section)

⚠️ Warning: Do not disable auto-runs for system applications named com.android. or com.miui. – this can lead to unstable phone operation!

Method 3: Manual process control via ADB (for advanced)

If standard methods don’t work, you can manually close unnecessary processes through Android Debug Bridge, which requires a connection to a computer but gives you full control of RAM.

What you need:

• 💻 A computer with installed Xiaomi drivers and ADB
• 🔌 USB-cable (preferably original)
• 📱 Included debugging by USB phone-on

Step-by-step:

1. Connect your phone to your computer and confirm your debugging permission.
2. Open the command line (Win + R → cmd)
3. Enter the command to view all processes: adb shell ps -A | grep -E 'u0_a [0-9]+'
4. Find the processes you want to close (e.g. com.facebook.katana for Facebook)
5. Close the process with the command: adb shell am force-stop com.facebook.katana

To clean all unnecessary processes, use the command:

adb shell am kill-all

⚠️ Warning: Do not close processes with the names android., miui., surfaceflinger or zygote – this will lead to system crash and forced restart!

Method 4: Optimize the boot (prevent future problems)

The best way to keep RAM clean is to keep it from clogging. MIUI has hidden autoload settings that allow you to control which apps can be launched when you turn on your phone or after you unlock it.

How to limit autoloading:

1. Open Settings → Applications → Application Management
2. Slip on three dots in the top right corner and select AutoRun
3. Sort applications by date of last use
4. Turn off auto-run for apps you rarely use

Pay particular attention to:

• 📱 Messengers (Telegram, WhatsApp, Viber) – they actively use RAM for background synchronization
• 🎮 Games – Many run background processes for update notifications
• 🛒 Store apps (AliExpress, Wildberries) – they follow stocks in the background

💡

Turning off auto-start for 5-10 unnecessary apps can free up to 300MB of RAM every time you turn on your phone!

For even more fine-tuning, use the Greenify app (requires root or special MIUI rights):

• 🌱 It freezes unnecessary apps, keeping them from waking up.
• 🔄 Works in tandem with Battery Saver in MIUI
• 📊 Shows detailed statistics of app awakenings

Method 5: Alternative launchers to save RAM

The standard MIUI launcher is one of the main memory eaters on the Redmi Note 7. It constantly keeps widgets, animations and background processes in RAM, replacing it with a lightweight alternative launcher can free up to 400-600 MB of RAM.

Top-3 light launcher for Xiaomi:

• 🏆 Nova Launcher – Balance between functionality and performance
• ⚡ Lawnchair – open source, minimalist design
• 🛠️ Smart Launcher 5 – Automatic Application Sorting

How to install an alternative launcher:

1. Download the selected launcher from Google Play
2. When you first start, select it as the default launcher.
3. In the settings of the new launcher, turn off all animations and widgets
4. Restart your phone to apply changes

What NOT to do when cleaning the silk

The Internet is full of tips on “optimizing” Android, which actually only hurts. Here’s what you should not do on the Redmi Note 7:

• 🚫 Use Google Play’s RAM boosters – they only add extra load
• 🔧 Disable system services via ADB without understanding the consequences
• 🔄 Continuously clean RAM manually – Android optimizes memory itself
• 🗑️ Remove the cache of all applications – this will slow them down the next run
• 🔋 Disable MIUI Optimization in the Developer Settings

It is especially dangerous to blindly follow the advice to "optimize" your phone through the engineering menu (#4636##).

• 📵 Leads to network loss
• 🔊 Sound disappearing
• 🖥️ Permanent Reboots

⚠️ Warning: If the phone is even slower after cleaning the RAM, it's a sign that the system is forced to constantly reboot applications into memory, in which case it's better to return some applications to autoboot or increase the limit of background processes in the developer settings (Background Process Limit → Standard Limit).

FAQ: Frequent questions about RAM on Redmi Note 7