How to Clean Memory 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 internal memory is quickly clogged with photos, apps and system debris. If your phone starts to slow down, issue notifications about space shortages or refuse to install updates, it’s time to clean up the memory. In this article, we will analyze all the working methods, from simple to radical, taking into account the features of MIUI and the hardware limitations of the model.

It's important to understand that Redmi 9A doesn't support exFAT cards (FAT32 only), and that only has 2-3GB of RAM, which puts limits on multitasking, so cleaning up memory not only makes space, but also improves performance, so let's start with safe methods and gradually move on to more serious measures.

1. Analysis of occupied space: what exactly is the memory?

Before you delete something, you need to understand which files and applications eat up the lion's share of memory. MIUI There's a built-in tool for that:

1. Open the settings → About the phone → Memory.
2. Wait for the analysis to be completed (it can take up to 30 seconds).
3. Click on the category (such as “Apps” or “Media Files”) to see the details.

Typical picture on Redmi 9A:

• 📸 Photos and videos: take up 30-50% of memory (especially if you shoot in the video) 1080p Use Google Photos with original quality).
• 🎮 Games: Even simple projects like Free Fire or PUBG Mobile Lite weigh 1-2 GB and their cache is the same.
• 🗑️ System cache: MIUI actively caches data, and over time this “garbage” can reach 3-5 GB.
• 📄 Downloads: PDF, APK, Archives – all of this is stored in the Download folder and is rarely deleted.

The critical feature of the Redmi 9A is that it reserves up to 6-8 GB for its needs, and this space cannot be vacated without root rights. So if the analysis shows that only 1-2 GB out of 32 is free, and the System occupies 10+ GB, that is normal for MIUI.

2.Cleaning App Cache: A Quick Way to Free 1–3 GB

Cache is a temporary file that creates applications to speed up work, and over time, it accumulates and takes up gigabytes of memory. On Redmi 9A, the cache can be cleared in two ways:

Method 1: Clearing the cache for individual applications

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

Method 2: Mass cleaning the cache of all applications

1. Open the settings → About the phone → Memory.
2. Click Clear in the "App Cache" section.
3. Confirm the action (may take 1-2 minutes).

⚠️ Warning: Don’t confuse Clear Cache and Clear Data! The second action will delete all settings and accounts in the app (for example, WhatsApp will have to re-sign in to your account).

How much memory will be freed up?

• 📱 Social networks (Facebook, Instagram, VK): 200-500 MB each.
• 🎵 Music services (Spotify, Yandex Music): up to 1 GB if you caching songs for offline listening.
• 🎮 Games: cash PUBG Mobile Lite can weigh up to 2 GB!

Close all background applications

Connect your phone to charge (the process may take time)

Check that important data is synced to the cloud

Do not interrupt the cleaning process.-->

3. Delete unnecessary files and “digital garbage”

Even if you clean your cache regularly, Redmi 9A is piling up other files that are not needed: duplicate photos, old APKs, system logs, and here's how to find them and delete them:

Folders that are worth checking first:

• 📁 Download — you can find all the downloads from the browser and messengers here. APK-files (application installation packages) weighing 50–100 MB each.
• 📁 DCIM/.thumbnails — So you can take out the thumbnails of photos and videos that the system automatically creates.
• 📁 MIUI/Backup — Backups of apps and settings. If you didn't make a backup consciously, those files aren't needed.
• 📁 Android/data — This is where game and application data is stored, and only delete it if you know that the file is not needed (for example, the cache of a game that has not been launched in a long time).

For convenience, use a file manager with a sorted size. Built-in MI File Manager is suitable, but it is better to install Solid Explorer or FX File Explorer - they show hidden folders and allow you to filter files by extension.

⚠️ Note: Do not manually delete files from folders:

• Android/obb – here are game data (delete – the game will stop working).
• MIUI (except Backup) are system files without which MIUI can crash.
• System or vendor – critical firmware files.

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To find the largest files, in MI File Manager, click on the three dots in the top right corner → Sort → By size. Files from 100MB and more are worth checking first.

4. Transfer data to a memory card or cloud

Redmi 9A supports microSD cards up to 512GB, but with reservations:

• 🔄 The map is formatted as a portable storage (you can not port applications, only media files).
• 🚫 Adoptable Storage doesn’t work like some other Xiaomi.
• 📁 Maximum file size per FAT32 — 4 GB (video in) 4K I'll have to break it).

How to transfer files to the map:

1. Insert the card and format it through a notification in the curtain or in Settings → Storage.
2. Open the Gallery or Files, select the necessary files (photos, videos, music).
3. Press "More" (three dots) → Move it to SD-map.

The alternative is cloud storage:

⚠️ Note: When using Google Photos in Original Quality mode, the free space will run out quickly. To save space, select High Quality (unlimited storage but with compression).

5. Remove or disable unnecessary applications

Redmi 9A has many MIUI and Google system applications that can’t be completely removed, but can be disabled or removed, freeing up to 500MB-1GB of storage.

List of safe applications to remove / disable:

• 🎵 Mi Music – if you use Spotify or Yandex Music.
• 📺 Mi Video - replace it with VLC or MX Player.
• 📰 Mi Browser: Better to use Chrome or Firefox.
• 🛒 Mi Pay and Mi Credit – if you do not use payments through Xiaomi.
• 🎮 Games and Game Center – if you don’t play games from Xiaomi.

How to disable system applications:

1. Go to Settings → Applications → Application Management.
2. Click on the three dots in the upper right corner → Show all applications.
3. Select an unneeded app (such as Mi Browser).
4. Click Disable (if the button is inactive – the application is critical to the system).
5. Confirm the action. The app will disappear from the menu and stop updating.

⚠️ Attention: Don't turn it off:

• Security is responsible for the safety and cleaning of memory.
• Settings - phone settings.
• System UI is the MIUI interface.
• Google Play Services – Many apps won’t work without it.

Disabling these components could lead to system collapse!

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Disabling unnecessary system applications not only frees up memory, but also reduces background activity, which prolongs battery life.

6.Reset to factory settings: a last resort

If all previous methods failed and the Redmi 9A has less than 1GB of free space, you’ll have to do a full reset, which will remove all data, apps and settings, returning the phone to the “out of the box” state.

Preparation for discharge:

Save contacts in your Google Account or on SIM-map

Copy photos and videos to a memory card or computer

Take a photo or write down important passwords (Wi-Fi, accounts)

Make sure you know the username/password from your Mi Account (required after reset)

Charge your phone at least 50%-->

How to reset:

1. Open Settings → About the phone → Reset settings.
2. Select to erase all data (reset to factory).
3. Enter. PIN-code or pattern lock, if requested.
4. Confirm the action. The phone will restart and start the process (it will take 5-10 minutes).

⚠️ Attention: After the Redmi reset 9A maybe:

• Require re-assignment of the Mi Account (if Find Device was enabled).
• Boot longer than usual (the first start after reset takes 3-5 minutes).
• Lose root rights if they were obtained (you will have to repeat the procedure).

On Redmi 9A, a factory reset doesn't delete files from the memory card, but it returns all camera, network, and sound settings to default values, for example, if you turned off system sounds or set up uniform screen lighting, everything will return to standard settings.

7.Memory optimization after cleaning

To prevent memory from getting clogged up so quickly on the Redmi 9A, follow these tips:

• 📱 Turn off autoload media in messengers: WhatsApp: Settings → Warehouse → Autoboot media → Select "Never" or "Only on Wi-Fi." Telegram: Settings → Data and memory → Autoboot media → disconnect for mobile network.
• 🎥 Shoot video in lower resolution: In camera select 720p instead 1080p — Space savings are 2-3 times. HDR and AI-Improvement – These features increase file size.
• 🔄 Set up automatic cleaning: In Settings → The phone. → Memory. → Settings (cogs) turn on "Autoclean." Choose to clean the cache once a week.
• 📴 Limit background activity: In Settings → Battery → Power saving mode: Enable Background Limitation, which will reduce battery consumption and reduce memory load.

You should also check the Download folder regularly and delete unnecessary files from there, APK-files after installing applications can be safely deleted - they take up space, but are not necessary for the operation of programs.

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If you install games or heavy apps frequently, use the Lite Mode feature on Google Play, which allows you to download lightweight versions of apps that take up less space.

FAQ: Frequent questions about memory cleaning on Xiaomi Redmi 9A