How to Clean Xiaomi Redmi 9: 7 Proven Ways

Xiaomi Redmi 9 will slow down over time due to clogged memory, accumulated cache and application background activity. Even with 64 GB of internal memory, the device can run slowly if you do not monitor its condition. In this article, we will discuss all possible cleaning methods, from basic methods to deep optimization of the system.

It's important to understand that simply deleting files through Explorer doesn't always solve the problem. App cache, duplicate photos, residual data from remote programs, and even system debris can take up gigabytes of memory, and we'll show you how to find and eliminate all these performance eaters without resorting to a radical reset.

1. Quick cleaning through built-in MIUI tools

Xiaomi is equipping its smartphones with a Security utility that allows you to quickly free up memory. On Redmi 9, this tool works especially well thanks to optimization for the Helio G80 and MIUI 12+.

To start the express cleanup:

• 📱 Open the Security app (Icon with shield)
• 🔍 Click on the Clean button in the lower menu
• ⚙️ Select Deep Cleanup to scan system files
• 🗑️ Click Clean after the analysis is completed

This method removes temporary files, application cache and residual data, but it does not affect user files (photos, videos, documents), so it is safe for personal data.

2. Manual cleaning of the app cache

Many apps (especially social networks and instant messengers) accumulate gigabytes of cache. On Redmi 9 with its modest 3/4 GB of RAM, this critically affects performance. Manual cleaning helps free up to 2-3 GB of memory.

Instructions for cleaning the cache for individual applications:

1. Go to Settings → Applications → Application Management
2. Select an app (such as Facebook or TikTok)
3. Press Warehouse.
4. Tap Clear Cache (not to be confused with Clear Data!)

For mass cleaning:

• 🔄 In the same Application Management menu, click three dots. → Size-based sorting
• 📊 Sort by Cash and clean the top-10 applications
• 🚫 Avoid clearing the cache for Google Play Services and MIUI System - This can cause failures

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After clearing the YouTube or Netflix cache, the first 2-3 launches can be slower – apps need to re-upload the data.

3. Delete unnecessary files and duplicates

High-resolution photos, downloaded memes, duplicate contacts and old ones APK-Files take up the lion's share of memory. 9 his 13 The main camera camera can weigh one photo. 5-8 MB.

Effective ways to find and remove garbage:

• 📁 Use Google Files (Google App) – it automatically finds:
• 🔍 Manually check the folders:

Outdated. APK-file|Cash games (daddy) OBB)|Duplicate photos|Logs and dumps (folder logs)|Old downloads from Telegram-->

For a deep analysis, use SD Maid (requires root rights for full functionality), which even finds system debris that standard MIUI tools don't see.

4. Optimization of autoloading and background activity

Many apps run when you turn on your smartphone and run in the background, consuming memory. On Redmi 9 with its budget processor, this greatly affects the speed of work.

How to turn off autoboot:

1. Go to Settings → Applications → Application Management
2. Select the application → Autostart
3. Turn off the slider (for messengers leave on)

To limit background activity:

• 🛑 In the same app menu, select Background Restriction
• 📉 Set a strict limit on unnecessary programs
• ⚠️ Do not limit Google Play Services and MIUI Daemon - this will cause disruption

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Disabling autoboot for 10-15 unnecessary apps can free up to 500MB of RAM on Redmi 9.

5. reset of the partition cache (wipe cache partition)

When standard methods fail and the smartphone continues to slow down, partition cache resetting will help, which removes temporary system files without losing user data.

Instructions for Redmi 9:

1. Turn off your smartphone.
2. Press the Power button + Volume up before the Mi logo appears
3. In the recovery menu, select Wipe & Reset.
4. Tap Wipe Cache (not to be confused with Wipe Data!)
5. Confirm the action and restart.

⚠️ Warning: Do not choose Wipe Data, it will result in a complete reset and deletion of files. 1-3 GB and safe for cleaning.

After this procedure, the first download can take 3-5 minutes - this is normal, and the method is especially effective after major MIUI updates, when the system accumulates many temporary files.

6. Radical methods: reset to factory settings

If all the previous methods failed, the last option is a complete reset, which will delete all data, so make a backup copy first.

How to Reset Redmi 9:

• 📱 Go to Settings. → The phone. → Resetting settings
• 🔄 Choose to erase all data
• 🔐 Enter a pattern lock or PIN
• ⏳ Wait until it's finished (taken). 5-10 minute)

After discharge:

• 📲 Don’t restore all applications at once – install only the necessary ones.
• 🚫 Refuse to restore system applications through Mi Cloud – they often contain garbage
• 🔧 Set up background restrictions for new apps immediately after installation

⚠️ Attention: Redmi 9s MIUI 12.5+ After reset, you may need to re-assign your Xiaomi account.

7 Prevention: How to keep the system clean

To avoid bringing your smartphone to a state where a radical cleaning is required, follow these rules:

• 📅 Start Security once a week → Cleanup
• 📸 Move your photo to the cloud or PC every month
• 🎮 After the games, remove their cache from the /Android/obb
• 🔄 Once every 3 months, make a section cache reset.
• 🚫 Avoid installation APK unverified

To automate the process, use:

• Files by Google – for regular garbage cleaning
• CCleaner – to control the cache of applications
• Greenify – for hibernation of unnecessary background processes

On the Redmi 9 with 64 GB of memory, it is recommended to leave at least 10-15% of space (6-9 GB) free for stable system operation. When the memory is filled by more than 90%, lags and sudden reboots begin.

FAQ: Frequent questions about cleaning up Redmi 9