How to Clean Xiaomi Redmi 9A: 7 Proven Ways

Xiaomi Redmi 9A is one of the most popular budget smartphones, but over time, even it begins to “brake” due to the accumulated digital debris. If your device began to slow down to load, applications suddenly close, and memory is catastrophically lacking — it’s time for a general cleaning. In this article, we will analyze all possible ways of cleaning, from basic cache removal to deep optimization of the system, which will return the phone to its previous speed.

It's important to understand that the Redmi 9A runs on a MediaTek Helio G25 processor with just 2/3GB of RAM (depending on the version). That means every megabyte of free memory is worth its weight in gold. But don't rush to drop the phone to factory settings -- less radical methods help 90% of the time. Let's start with the simplest and move on to advanced techniques that even service centers use.

1.Cleaning the app cache: A quick way to free up memory

Cache is a temporary file that creates applications to speed up their work. Over time, they take up gigabytes of memory, although many of them are no longer relevant. On Redmi 9A, with its modest 32/64 GB of internal memory, this is especially critical.

To clear the cache of individual applications:

1. Open Settings → Applications → Application Management.
2. Select an app (such as YouTube or Facebook).
3. Press Warehouse. → Clear the cache.

For mass cleaning:

• 🧹 Use the built-in Cleanup utility (the broom icon in the settings menu) that automatically finds unnecessary cache files, remnants of deleted programs and duplicates.
• 📱 In the Warehouse section, click Clean - the system will show how much space can be vacated.
• ⚠️ Do not clear the cache of system applications (e.g. com.android.systemui) – this can cause interface failures.

⚠️ Cache clearing does not delete your data (photos, messages, accounts), but some applications (such as maps or instant messengers) may take longer to load on the first run after cleaning.

2. Delete unnecessary files and “digital garbage”

The Redmi 9A has a nasty feature: even after deleting applications, their residual files often remain in memory.

• 🗑️.obb and.apk folders from remote games (can weigh by weight) 1-2 GB!).
• 📁 Empty folders in DCIM, Downloads or Bluetooth.
• 🎵 Duplicate music or video downloaded several times.
• 📄 Logs and dumps of the system (files with the extension.log or.dmp).

To find and remove them:

1. Connect your phone to your PC via USB (select File Transfer Mode).
2. Use Windows Explorer or a file manager (such as Total Commander) to search by extensions: *.apk*.obb*.log*.dmp*.tmp
3. Remove anything that is not relevant to current applications.

For convenience, you can use applications like Files by Google or SD Maid (available in the Play Market).

• 🔍 Large files (>100MB).
• 📂 Empty folders.
• 🗃️ Duplicate photos and videos.

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Before mass deletion of files, back up important data to the cloud or PC. Even seemingly unnecessary files can contain game saves or application settings.

3. Optimization of autoboot and background processes

One of the main reasons for the brakes on the Redmi 9A is the excessive autoload of applications. Many programs (especially messengers and social networks) start when the phone is turned on and hang in the background, consuming RAM.

Method 1: Through the MIUI settings

1. Go to Settings → Applications → Application Management.
2. Select an application (for example, VKontakte).
3. Press Autostart and turn off the slider.
4. In the Battery section → Select the battery mode set for unnecessary applications the Background Limitation mode.

Method 2: Through Advanced Developer Settings

• 🔧 Activate Developer Mode: Settings → The phone. → Version. MIUI (press 7 times).
• 🛠️ Back to Settings → Additionally. → For developers.
• 🚫 Turn off Background Checking and limit background processes to 2-3.

⚠️ Warning: Disabling autoboot for system applications (e.g. com.miui.home) may result in loss of launcher or widget functionality.

4. Cleaning the system from viruses and malware

Redmi 9A It is often a target for viruses, especially if you have installed applications from third-party sources (APK-Symptoms of infection:

• 📱 A sharp increase in battery consumption.
• 🚀 Appearance of unfamiliar apps on the menu.
• 📴 Self-involved reboots.
• 💰 Debiting money from the account (if connected mobile bank).

For inspection and cleaning:

1. Install Malwarebytes or Dr.Web Light from the Play Market.
2. Run a full scan (may take 10-20 minutes).
3. Remove all threats and reboot your phone.

If the antivirus has not found anything, but suspicions remain:

• 🔍 Check the list of installed applications in Settings → Remove anything suspicious (especially with names like System Update, Flash Player or Clean Master).
• 🛡️ Disable the installation from unknown sources: Settings → Confidentiality → Special permits → Installation of unknown applications.

5. Reset the recovery cache (for power users)

If standard methods didn't work and the phone is still slowing down, you can clear the recovery partition cache. This won't delete your data, but it will reset temporary system files that may have been corrupted.

Instructions:

1. Turn off Redmi 9A.
2. Press the Power Button + Volume up simultaneously until the MI logo appears.
3. In the recovery menu, select Wipe & Reset → Wipe Cache (manage volume buttons, confirmation – power button).
4. After cleaning, restart the phone (Reboot).

This method helps if:

• 🐢 The phone is slowing down after the update. MIUI.
• 🔄 Apps are constantly flying out with an error.
• 📱 The screen is loaded long after switching on.

⚠️ Warning: Don't confuse Wipe Cache with Wipe Data! The second option will completely reset the phone to factory settings, deleting all your data.

6.Deep optimization: disabling animations and redundant services

To maximize speed, the Redmi 9A can turn off visuals and unnecessary system services, which does not clean up memory, but significantly reduces the load on the processor.

Cancel animations:

1. Activate Developer Mode (see Section 3).
2. Go to the Developers and find:

Disabling unnecessary MIUI services:

• 📡 Mi Cloud Sync – if you don’t use Xiaomi Cloud.
• 📊 Usage & Diagnostics – statistics collection (you can turn off without consequences).
• 🔊 Mi Sound Enhancer – Sound enhancement that eats up resources.

To turn off:

1. Use the ADB (PC required) or App Inspector app to search for packages.
2. Follow the command: adb shell pm disable-user --user 0 com.miui.analytics (replace com.miui.analytics in the name of the unnecessary package).

💡

Disabling animations and background services can boost performance by up to 20-30% on weak devices like the Redmi 9A, but can degrade user experience (e.g., smooth transitions between screens).

7.Extreme measure: reset to factory settings

If all previous methods failed, it would be a complete reset, which would remove everything from the phone, including apps, photos and settings, but restore factory speed.

How to do the reset correctly:

1. Create a backup copy: 📱 Contact: Export to the VCF via Contact → Management → Exports. 📷 Photo/video: copy the folder DCIM PC-based. 🔑 Passwords: Check that they are saved in Google Account.

Settings → About the phone → Reset settings → Erase all data

5-10 minutes

After discharge:

• 🔄 Don’t restore data from backup right away – check the speed of a clean phone first.
• 📥 Install applications gradually, watching the performance.
• ⚙️ Turn off auto-update apps in the Play Market.

⚠️ Attention: On Redmi 9A After reset, you may need to re-assign your Mi Account. If you forget your password, use the restore function on the Xiaomi site before resetting!

FAQ: Frequent questions about cleaning Xiaomi Redmi 9A