Memory cleanup on Xiaomi Redmi 9A: from cache to complete reset

Xiaomi Redmi 9A is one of the most popular budget smartphones, but its modest 32 GB of memory is quickly clogged with garbage. Even if you do not install games, the MIUI system and background processes gradually take up free space. In this article, we will analyze all the cleaning methods, from manual cache removal to radical reset to factory settings, taking into account the features of this model.

The Redmi 9A’s main problem is that there is no memory card slot in the base version (there are microSD-enabled versions), which means users have to control the space they occupy, and we analyzed Xiaomi’s official guidelines, owner reviews and tests on real devices to draw up a current guide for 2026, taking into account the latest updates to MIUI 14.

1. Diagnosis: Why is memory full?

Before you clean it, you need to know what's taking up space. On Redmi 9A, you can test this in two ways:

• 📊 Through Settings: Go to Settings → The phone. → Memory: This displays the categorization (system, applications, media, etc.).
• 🔍 Through File Manager: Open the Files app (from Xiaomi), tap three dots in the upper right corner and select Memory Analysis.

Typical memory eaters on Redmi 9A:

• 🎮 Cash games (especially if you play Free Fire, PUBG Mobile or Call of Duty – they can take up to 5-7 GB).
• 📸 Photos and video in high resolution (the smartphone camera saves pictures in 12 MP, and video in Full) HD).
• 🗑️ Residual files after deleting applications (folders) Android/obb and Android/data often remain intact).
• 🤖 Systemic debris MIUI: log files, temporary update data, Google Play Services cache.

If the System section is occupied more than 10-12 GB, this is a reason to clean up. Norm for Redmi 9A is 6-8 GB for MIUI and preinstalled applications.

2. Cleaning the application cache without data loss

The safest way to free 1-3 GB is to remove the cache. On Redmi 9A, this can be done for individual applications and globally.

Method 1: Clearing the cache for a specific application

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

Method 2: Mass cleaning of the cache

1. Go to Settings → About Phone → Memory → Clear the cache.
2. Confirm action. This will delete the cache of all applications, but it will not affect personal data.

⚠️ Warning: After clearing the cache, some apps (like Google Maps or Instagram) will take longer to load when you first run it – this is normal as they cache data again.

3. Removal of unnecessary files and debris

Even if you clean the cache regularly, Redmi 9A is accumulating temporary files that are not visible in the standard file manager.

1. Cleaning up the Download folder

By default, all files downloaded through the browser or messengers go to the Internal Drive → Download.

• 📄 PDF-Files and documents that are not needed for a long time.
• 🎵 Audio files from Telegram or WhatsApp.
• 🖼️ Pictures and memes saved for later".

2. Deletion of residual application files

After uninstallation of programs in the folders Android/obb and Android/data often remain files weighing up to 1-2 GB.

1. Open the file manager (e.g., Google Files or standard MIUI).
2. Go to Internal Drive → Android → obb and delete folders with the names of remote games.
3. Repeat the same for Android/data.

⚠️ Note: Do not delete folders of current applications - this will lead to malfunctions in their work!

3. Cleaning through MIUI Cleaner

Redmi 9A has a built-in Cleanup app that analyzes:

• 🗑️ Unnecessary APK (leftovers after application installation).
• 📑 Duplicate files (e.g., same photos).
• 🔄 Large files (video, archives).

To start a deep cleanup:

1. Open the Cleanup app.
2. Press Deep Cleanup.
3. Select file categories to delete and confirm.

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If the Cleanup app doesn’t find garbage, try rebooting your smartphone – sometimes MIUI doesn’t update file data without restarting.

4. Optimization of photos and videos

The Redmi 9A captures 12MP images and records video in Full HD. When used, media files can take up to 50% of memory. Here's how to reduce their weight:

1. Compress photos via Google Photos

The Google Photos app allows you to:

• 📱 Automatically upload photos to the cloud and delete them from your device.
• 🗜️ Compress images without visible loss of quality (High quality instead of original quality).

2. Change of camera resolution

If you don’t need the highest quality, lower the resolution:

1. Open the Camera app.
2. Put it on the gear (⚙️) → Photo permission.
3. Choose 9 MP instead of 12 MP.

This will reduce the weight of each image from 3-4 MB to 1-2 MB.

3. Delete screenshots and screen recordings

Screenshots and screenshots are automatically saved to DCIM/Screenshots and Movies/Screenrecords. They are easy to forget, but they take up a lot of space:

• 📸 One screenshot weighs 1-2 MB.
• 🎥 One minute of screen recording – 50–100 MB.

5. Transfer data to a memory card (if supported)

Not all Redmi 9A versions have a microSD slot, but if your model supports memory extensions (like Redmi 9A NFC), you can transfer the data as follows:

1. Insert a memory card (UHS-I or Class 10 is recommended for speed).
2. Open Settings → Memory → Memory Map.
3. Select Format as internal memory (this will allow you to install applications on SD).
4. After formatting, go to Settings → Apps, select the program and tap Move to SD-map.

⚠️ Note: Not all applications support portability SD. System Programs (Google Play Services, MIUI Launcher: Remains in internal memory.

6. Reset to factory settings (last resort)

If none of these methods worked, and the Redmi 9A has less than 1-2 GB of free space, you'll have to do a complete reset, which will delete all data, including:

• 📱 Applications and their settings.
• 👤 Accounts (Google, Mi Account).
• 📂 Photos, videos, music (unless backup is made).

How to reset Redmi 9A:

1. Back up your important data (via Google Drive, Mi Cloud or PC).
2. Go to Settings → About the phone → Reset settings.
3. Choose to erase all data.
4. Enter a pattern lock or PIN-code.
5. Confirm the reset.

Once reset, the smartphone will reboot and return to the "out of the box" state. The first launch will take 5-10 minutes - that's normal.

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Factory reset is the only way to get your MIUI back if your smartphone is slowing down because of overcrowded memory, but only use it after the backup!

7. How to prevent memory filling in the future

To avoid cleaning the Redmi 9A every month, follow these tips:

• 🔄 Clean the cache regularly (once every 1-2 weeks).
• 📤 Set up an automatic upload to the cloud (Google Photo or Mi Cloud).
• 🚫 Refuse to save media files from messengers (in Telegram and WhatsApp you can disable auto downloading).
• 🗑️ Remove unused apps (even if they are “lightweight,” they accumulate cache).
• 🔍 Check the Download folder once a month.

It is also useful to disable automatic updates of applications via the mobile Internet:

1. Open the Google Play Store.
2. Slip on the profile avatar → Settings → Auto-update applications.
3. Select Only via Wi-Fi.

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If you install and delete games frequently, use the Files by Google app – it automatically prompts you to clear your residual files after uninstallation.

FAQ: Frequent questions about cleaning up Redmi 9A