How to clean Xiaomi Redmi 9A from garbage: 7 ways to return speed

Xiaomi Redmi 9A is one of the most popular budget smartphones, but over time even it begins to “slow down” because of clogged memory, background debris and outdated application data. If your Redmi 9A is slowing down, spontaneously restarting or issuing errors “not enough memory”, it’s time to clean up.

In this article, we will discuss all possible cleaning methods, from basic (cache removal and unnecessary files) to advanced (factory reset and MIUI optimization). Importantly, on the Redmi 9A with 2 GB of RAM and 32 GB of memory, it is critical to monitor the free space - when filling more than 90%, the system begins to lay down even for simple tasks. Don't wait for this moment!

All methods are tested on current versions of MIUI 12/13/14 and do not require root rights. If you have never cleaned your smartphone, start with the first section and move on to the next one.

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

Cache is a temporary file that apps create to speed up work. Over time, they accumulate and take up gigabytes of memory. On Redmi 9A with its modest 32 GB, this is especially critical. Cache cleaning does not delete personal data (photos, messages, accounts), but can solve the problem with “hangover” programs.

How to clean the cache on Redmi 9A:

• 📱 Open the Settings. → Annexes → Application management
• 🔍 Select the app (start with the most “heavy” – Facebook, Instagram, instant messengers)
• 🧹 Click Clear Cache (not to be confused with Clear Data – it will delete accounts!)
• 🔄 For mass cleaning, use the settings → Memory. → Cleaning (the system will find unnecessary files)

How much memory will be freed up? On average, 500MB to 2GB depends on the number of apps installed, for example, the cache of Google Play Services can weigh up to 1GB, and instant messengers can weigh 200-300MB each.

⚠️ Note: Do not clear the cache of system applications like com.android.systemui or com.miui.home – this can cause interface failures. MIUI. If you are not sure what you are doing, skip this paragraph.

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After cleaning the cache, restart the smartphone. MIUI will create new temporary files and the system will work more stable.

2. Delete unnecessary files and junk folders

Even if you clean the cache regularly, Redmi 9A still has invisible files: downloads, duplicate photos, remnants of deleted applications, which can be found manually or with the built-in MIUI tools.

Where to look for garbage:

• 📁 Download folder – here accumulate APK-files, documents and pictures from the Internet
• 🗑️ folder DCIM/.thumbnails — Photos that take up to 500 MB
• 📥 folder Android/data — Remnants of remote games (for example, cache) PUBG Mobile or Call of Duty)
• 🔍 Built-in scanner: Settings → Memory. → Files. → Unnecessary files

How to remove safely:

1. Connect your smartphone to your PC and use a conductor (or a file manager on your phone, such as Mi File Manager).
2. Sort files by date or size – it’s easier to find large debris.
3. Before deleting, check if the files are important (for example,.apk can be a backup of the application).

⚠️ Attention: Do not delete folders MIUI, Android or the system completely will cause a system failure. Only delete specific files inside them if you are sure of their purpose.

3. Optimization of autoboot and background processes

One reason Redmi 9A brakes are apps that start automatically and hang in the background, consuming RAM. MIUI has a built-in tool to control autoboot, but it's hidden in the depths of settings.

How to turn off autoboot:

1. Go to Settings → Applications → Application Management.
2. Click on the three dots in the top right corner and select AutoRun.
3. Turn off auto-run for unnecessary apps (especially for games and social media).

It is also useful to limit background activity:

• 🔋 B Settings → Battery → Battery mode select Energy saving – this will limit background processes.
• 🚫 B Settings → Special facilities → App permissions disable Work in the background for unnecessary programs.

This will reduce CPU heat and extend battery life. On the Redmi 9A with its weak MediaTek Helio G25 processor, this is especially true, with every extra background process taking up to 10% of performance.

Disable Autostart for Games|Limit the background work of messengers|Enable energy saving mode|Reboot your phone after the changes-->

4. system cache reset (not to be confused with hard reset!)

If your smartphone is slowing down a lot, but you don't want to lose data, try resetting the system cache, which will delete temporary MIUI files, but won't affect your photos, apps, or settings.

• 🐢 Slowing down animations and transitions between screens
• 🔄 Spontaneous reboots
• 📱 Freezes when starting a camera or gallery

Instructions:

1. Turn off Redmi 9A.
2. Press Volume Up + Power before the Mi logo (Recovery Mode) appears.
3. Select the language (volume buttons) and go to Wipe & Reset.
4. Select Wipe Cache (not Wipe All Data!)
5. Confirm the action and wait for the completion.
6. Reboot your smartphone (Reboot).

It takes 2-5 minutes. After the reboot, MIUI will create new temporary files and the system will work faster.This method does not delete personal data, but may require re-entering passwords in some applications (due to reset system settings).

5. Full reset to factory settings (hard reset)

If all previous methods failed, the last resort is factory resets, which will delete all data (photos, messages, apps), but return the smartphone to a "clean" state. On the Redmi 9A, this is especially effective if:

• 🦠 The phone is infected with viruses (for example, after installing pirated devices). APK)
• 🔧 The system is critically error-proof (com.android.phone stopped)
• 📉 Memory is not known what (in Settings) → Memory shows "The Other" 5+ GB)

How to make a hard reset:

1. Create a backup copy of important data (photos, contacts, chats).
2. Go to Settings → About the phone → Reset settings.
3. Select Reset all settings and confirm.
4. Wait for the finish (10-15 minutes) and set the phone up as new.

After discharge:

• 🔄 Do not restore data from a backup right away – check the speed of a clean system first.
• 📥 Install applications gradually, watching the performance.
• 🛡️ Turn off auto-update apps on Google Play.

⚠️ Attention: On Redmi 9A With 32 GB of memory, don't install more than 30 to 35 apps after reset, otherwise the system will slow down again.

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Hard reset is the only way to completely remove viruses and system debris, but it erases all data. Use it only if other methods have not worked.

6. Optimize MIUI for maximum performance

Even after cleaning, the Redmi 9A may not work perfectly due to the heavy MIUI interface.

Turn off the animations:

1. Activate Developer Mode (7 times click on the MIUI version in Settings → About Phone).
2. Go to Settings → Additional → For developers.
3. Find the items Animation Scale, Transition Animation and Animator Duration – set the value to Disable or 0.5x.

Reduce the screen resolution:

• 📺 B Settings → Display. → Screen resolution select HD+ (720p) Full instead HD+. This will reduce the load on the processor.

Turn off unnecessary MIUI functions:

• 🎵 Settings → Sound. → Sound effects – turn off system melodies.
• 🌐 Settings → Additionally. → Regional settings – Install India region (there are fewer pre-installed Xiaomi services).
• 📊 Settings → Battery → Usage statistics – disable monitoring for unnecessary apps.

These adjustments will reduce the load on the processor and extend battery life. On the Redmi 9A with its weak hardware, this gives performance gains of up to 20-30%.

7. Alternative methods: from memory card to custom firmware

If, even after all the manipulations, the Redmi 9A is not working well, consider these options:

Transfer of applications to SD-map:

• 📱 Buy a microSD class 10 (recommended by SanDisk Ultra or Samsung) EVO).
• 🔧 B Settings → Select the program and click Transfer to SD-map.
• ⚠️ Not all applications support portability (especially system applications).

Installation of custom firmware (for advanced):

• 🛠️ Popular firmware for Redmi 9A: LineageOS, Pixel Experience, Havoc-OS.
• 🔓 You will need to unlock the bootloader (fastboot oem unlock) and get root rights.
• ⚠️ The risk of “bricking” the phone – only if you are confident in their actions!

Replacement with a more powerful smartphone:

If the Redmi 9A doesn’t do your job, consider models with 4GB of RAM and a Snapdragon processor (like the Redmi Note 10 or POCO M4 Pro). For the Redmi 9A, it’s critical not to multitask — open no more than 3-4 apps at a time.

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Custom firmware can give Redmi 9A a second life, but requires technical skills. For most users, optimizing the standard MIUI is enough.

FAQ: Frequent questions about cleaning Xiaomi Redmi 9A