Cleaning up RAM on Xiaomi Redmi 9A: a complete guide for users

Xiaomi Redmi 9A

2 GB of RAM

RAM

Redmi 9A

Many users mistakenly believe that clicking the “Clean” button in the multitasking menu is a temporary solution. Background processes, app cache and unoptimized MIUI services continue to consume resources even when you are not using them. In this article, we will discuss 7 proven ways to free RAM on the Redmi 9A, including hidden system settings that Xiaomi does not advertise.

It's important to understand that cleaning RAM is not a panacea for all lags. If your smartphone is slowing down because of a full drive (internal memory), a weak processor or outdated firmware, additional measures will be required. But in 80% of cases, it is the lack of free RAM that causes hangings, and our instructions will help solve this problem without root rights and complex manipulations.

1. Manual cleaning through the multitasking menu

The most obvious, but not always effective, way is to close all apps manually. On Redmi 9A, this is done by swiping up from the bottom edge of the screen with a delay (if you have gestures) or pressing the square navigation button (if you use a button bar).

✅ How to clean properly:

• 📱 Swipe up and hold your finger for 1 second to open a list of recent apps.
• 🧹 At the bottom of the screen will appear the button “Clear everything” – click it.
• 🔄 If no button is available, close each application with a swipe left/right.

❌ What's not working:

• ❌ Closing applications does not completely free RAM – many services (for example, com.miui.daemon) restart automatically.
• ❌ Frequently pressing “Clean All” can increase battery consumption as the system will have to reboot processes.

💡

On Redmi 9A, after cleaning multitasking, keep the screen locked for 10-15 seconds – this will allow the system to stabilize the use of RAM without unnecessary load.

To check the result, go to Settings → About → System Status → Memory. Compare RAM Used before and after cleaning. If the difference is less than 200-300 MB, go to the following methods.

2. Optimization of application autoloading

Many MIUI applications run automatically when you turn on your smartphone or connect to the Internet, taking up precious RAM. You can turn off autoboot through hidden settings:

🔧 Step-by-step instruction:

1. Open Settings → Applications → Application Management.
2. Slip on three dots in the upper right corner and select "Stop."
3. In the list, mark applications that should not be launched automatically (for example, games, social networks, instant messengers).
4. Click "Disable" at the bottom of the screen.

⚠️ Attention:

Disabling autoruns for system applications (e.g. com.android.phone or com.miui.securitycenter) can cause phone malfunctions (🔧) or the inscription “System».

Unused messengers (Viber, Telegram)|Games (PUBG, Free Fire)|Social networks (Facebook, TikTok)|Background services of banks (if you do not use push notifications)-->

Once you turn off autoboot, restart your smartphone, allowing MIUI to apply changes and free up RAM from unnecessary processes. For maximum effect, combine this method with manual multitasking cleaning.

3.Using the built-in MIUI optimizer

Xiaomi has integrated the Optimizer tool into the firmware, which closes the background processes and frees up RAM, but by default it doesn't work well. Here's how to set it up:

⚡ Activation of deep cleaning:

• 🛠 Open the Settings. → Features → Optimizer.
• 🔍 Put it on the gear (⚙️) top-right.
• 📊 Enable options: “Deep Clean” (remove the cache of system applications); “Clean up when blocking” (free up RAM when you turn off the screen); “Game optimization” (if you play on a smartphone).

📊 Optimization results:

Once a day.|Once a week.|Only when the phone is slowing down.|Never used it.-->

⚠️ Attention:

Do not turn on the “Clean Up When Starting” option – it slows down the first boot of the smartphone after turning on, since the system has to re-initialize all services.

4. Limitation of application background activity

Even after closing, many apps continue to run in the background, consuming RAM and battery. On Redmi 9A, you can limit their activity through battery settings:

🔋 Instructions:

1. Go to Settings → Battery and Performance → Battery Management.
2. Select an app from a list (like Facebook or Instagram).
3. Activate the option “Limit background activity”.
4. For maximum savings, also disable “Autostart” and “Push notifications”.

📉 What apps “eat” RAM the most?

• 🎮 Games: PUBG Mobile, Call of Duty, Free Fire (up to 500-800 MB in the background!).
• 📱 Social networks: Facebook, TikTok, Instagram (for 150-300 MB each).
• 💬 Messengers: Telegram, WhatsApp (especially if chatbots are enabled).
• 🎵 Music services: Spotify, Yandex Music (cache tracks to RAM).

🔄 An extra trick:

If the application starts to work unstable after the background activity is limited (for example, no notifications come), return the settings back. Alternatively, use lightweight versions of applications (for example, Facebook Lite or Messenger Lite), which consume 2-3 times less RAM.

5. Reset system cache and Dalvik-cache

The cache and the Dalvik-cache of the Android virtual machine grow over time, taking up not only internal memory, but also RAM. Cleaning them will not delete your data, but can speed up the smartphone.

🧹 How to cleanse:

1. Turn off your smartphone.
2. Press the Power and Volume buttons up at the same time to enter Recovery mode.
3. Use the volume buttons for navigation and the power button to select the "Wipe Cache Partition" option.
4. Confirm the action and wait for the completion (it will take 1-2 minutes).
5. Reboot your smartphone (Reboot System Now)

⚠️ Attention:

Don’t confuse “Wipe Cache Partition” with “Wipe Data/Factory Reset” – the second item will completely reset your smartphone to factory settings, deleting all your data!

📊 What does cleaning the cache do:

• 🚀 Frees up to 300-500 MB of RAM (by deleting temporary system process files).
• 🔄 Reduces the number of background services launched at system start-up.
• 🛠 Fixes errors such as “App Stopped” caused by damaged cache.

💡

Cache cleaning in Recovery is recommended every 2-3 months or after major MIUI updates.

6. Disable animations and visual effects

MIUI on Redmi 9A uses a lot of animations that not only slow down the interface, but also consume additional RAM.

🛠 How to Enable Developer Mode:

1. Go to Settings. → The phone.
2. Tap 7 times on the item "Version" MIUI» (A notification will appear saying, “You have become a developer»).
3. Return to the main settings menu and open a new section for developers.

⚡ Optimization of animations:

• 🎨 Find the settings: The scale of the window animation → Set Off; Scale of Transition Animation → Set off; Duration of animation → install No animation.
• 🔄 Also disable “Animation of start/close applications».

📈 The effect of turning off animations:

• 🚀 Smartphone will open apps 15-20% faster.
• 🧠 Free up to 100-150 MB of RAM previously occupied by animation rendering.
• 🔋 The battery life will increase (by 5-10%), as GPU will be less burdened.

⚠️ Attention:

If after disabling animations, the interface began to look “sharp”, return the settings to the animation scale ×0.5 – this is a compromise between smoothness and performance.

7. Alternative methods: applications and root access

If standard methods do not help, you can use third-party utilities or advanced settings (require root rights).

📱 Top.-3 Applications for cleaning RAM (without root):

• 🧹 Greenify - "freezes" background apps, preventing them from consuming RAM. ADB (I need to get the debugging on. USB).
• 🔧 SD Maid – clears the cache of system applications that are not normally available to the user.
• 📊 Simple System Monitor – shows detailed statistics of RAM usage and allows you to kill processes manually.

🔓 Advanced methods (for advanced users):

• 🛠 Removing System Applications Through ADB Or Titanium Backup (requires root). For example, you can delete com.miui.analytics (Xiaomi statistics collection), which is constantly hanging in RAM.
• 🔄 Changing the Lmk (Low Memory Killer) parameter allows you to configure at what threshold of free RAM the system will kill processes. /sys/module/lowmemorykiller/parameters/minfree.
• 📱 Custom core firmware (e.g. FrancoKernel) with optimized memory management.

⚠️ Attention:

Use of root methods on Redmi 9A fraughtly: 🚫 Loss of guarantee; 🔄 Unstable system performance (especially if you remove critical system applications); 🔒 The risk of blocking the bootloader with incorrect firmware. We recommend resorting to root only if all other methods did not help.

FAQ: Frequent questions about RAM cleaning on Redmi 9A