Cache Clearing on Xiaomi Redmi 9C: 5 Ways to Free Your Memory Without Risk

Why Clean Cache on Xiaomi Redmi 9C and When to Clean

The cache on Xiaomi Redmi 9C is a temporary file that creates applications to speed up their work. They store data on recent actions, uploaded images, videos and other elements so that when you reopen the program everything loads faster. However, over time, this garbage accumulates, taking up precious megabytes of internal memory. On Redmi 9C with its modest 32-64 GB of storage every gigabyte in the account.

But cleaning the cache is not a panacea. Many users mistakenly believe that regular deletion of temporary files will speed up the smartphone. In fact, the cache does not affect performance if it is less than 1-2 GB. But excessive deletion can lead to the opposite effect: applications will have to re-upload data, which will slow down their work and increase traffic consumption. So when is it really worth cleaning the cache?

• 📱 Lack of memory – the system gives a notification “Memory is full” when you try to install a new application or take a photo.
• 🐢 Applications slow down – social networks, instant messengers or games load for a long time, despite a stable Internet.
• 🔄 Errors in the operation of programs – applications suddenly close, do not open or show outdated data (for example, the browser displays an old version of the site).
• 📉 After updating MIUI — New firmware versions sometimes conflict with old cache files.

If none of these signs, cleaning the cache will not be of any noticeable benefit. Moreover, on the Redmi 9C with a Helio G35 processor and 2-3 GB of RAM, frequent cleaning can even harm: the system will have to spend resources on rebooting data.

Method 1: Clearing the cache of individual applications through settings

The safest method is to remove the cache for specific programs. It doesn't affect system files and doesn't require rebooting. On Redmi 9C with MIUI 12-14, the path to settings may be slightly different, but the overall scheme is the same:

1. Open Settings (the gear icon on the main screen).
2. Go to the Appendix section → Application management.
3. Select an app from a list (such as Facebook, YouTube, or Google Chrome).
4. Press Warehouse. → Clear the cache.

For convenience, you can sort programs by cache size:

1. In the Application Management section tap on the three-point menu (⋮) top-right.
2. Select Sort by Size → Cash.
3. Now at the top of the list will be the most “voracious” applications.

⚠️ Warning: Do not clear the cache for system applications like Settings, Phone or Google Play Services. This can cause malfunctions in your smartphone. Also avoid cleaning the cache for WhatsApp and Telegram - it stores thumbnails of media files, and re-downloading them will take a lot of traffic.

Close all background applications

Check the free space in memory

Backup important data (if you clean messengers)

Remember passwords from accounts (some apps may log out of your account)

-->

Method 2: Mass cleaning the cache of all applications

If you want to free up space quickly, you can delete the cache of all applications at once.

• 📲 You are preparing your smartphone for sale and want to delete all personal data.
• 🔧 Planning an update. MIUI You want to avoid conflicts.
• 🚨 The system emits a “lack of memory” error when installing a critical application.

Instructions for Redmi 9C:

1. Open the Settings → Storage.
2. Tap on the item Cache data (may be called Cache data).
3. Confirm the cleaning in the window that appears.

On the Redmi 9C with MIUI 13+, after mass cleaning of the cache, the smartphone may temporarily slow down (up to 10-15 minutes), which is normal: the system recovers the necessary data. If the brakes last longer than an hour, restart the device.

⚠️ Note: This method does not clear the cache of system applications, and you will have to use the first method or Recovery Mode (described below.

💡

After mass clearing the cache, restart Redmi 9C in Safe Mode (press the power button → “Reboot Safe Mode”). This will help identify applications that create too many temporary files.

Method 3: Clearing the cache with Recovery Mode (for power users)

If your smartphone is slowing down or not responding to commands, you can clear the cache through recovery mode, which is also useful before you run a firmware or after a failed update. On Redmi 9C, you can log in to Recovery like this:

1. Turn off the phone.
2. Press the buttons Power + Volume up at the same time.
3. Hold them for 10-15 seconds until the Mi logo and menu appear in English.

In Recovery Mode, the volume (move) and power (select) buttons are controlled.

1. Select the Wipe & Reset option.
2. Put the Wipe Cache on.
3. Confirm the action by choosing Yes.
4. After you complete the process, select Reboot to System.

⚠️ Warning: Don't confuse Wipe Cache with Wipe Data! The second option will reset the phone to factory settings, deleting all your data. Also, it is not recommended to use Recovery for regular cleaning - this is an emergency method.

Method 4: Using a file manager for manual cleaning

Some temporary files (such as thumbnails of images or Google Play Services cache) are not deleted through standard settings. They can be found and erased manually.

1. Install a file manager with access to system folders (e.g. FX File Explorer or Solid Explorer).
2. Open the manager and give him Root rights (if any) or at least access to hidden folders.
3. Go to the root directory (/) and find the folders:

• 📁 /data/data/ — This is where the cache and application data are stored, and you can only delete folders with the names of unnecessary programs (for example, com.facebook.katana for Facebook).
• 📁 /sdcard/DCIM/.thumbnails — Photo and video miniatures, and you can delete them.
• 📁 /sdcard/Android/data/ — cache of games and heavy applications (for example, PUBG or Netflix).

⚠️ Note: Delete files from the folder /data/data/ root-free software can cause app failures. If you're not sure, use standard cleaning methods.

For convenience, you can sort files by date of change: the oldest temporary data is probably no longer needed, and pay attention to files with extensions.tmp,.cache or.log – they can almost always be deleted.

💡

Manually clearing the cache through the file manager is the most efficient way to free up space, but also the riskiest. Always back up important data before deleting system files.

Method 5: Third-party applications for automatic cleaning

There are hundreds of cache cleaners on Google Play, but not all of them are safe. Many SEOs create background processes themselves, which only add to the load on the Redmi 9C. We tested several apps and selected the most reliable ones:

How to use Files by Google (Recommended for Redmi 9C):

1. Install an app from the Play Market.
2. Open it and tap the Cleanup in the bottom menu.
3. Select the Cache Files and confirm the deletion.
4. For deep cleaning, go to Storage Analysis → Large files or Duplicates.

⚠️ Note: Do not use memory boosters such as Clean Master or DU Speed Booster: These programs often display false warnings about "critical RAM loading" and consume Redmi resources themselves. 9C, who has little memory.

What to do if after cleaning the cache problems remain

Cache cleaning doesn’t always solve performance or memory problems.If after all the manipulations, Redmi 9C continues to slow down or give out errors, check the following:

• 🔋 Battery charge – at a level below 15%, the system automatically limits performance.
• 📶 Network – Slow internet can create the illusion of “brakes” (check speed in Speedtest).
• 🛠️ Updates - Go to Settings → The phone. → Update the system and install the latest patches.
• 🧹 Background Processes – Open Settings → Annexes → Launched and Close Unnecessary Programs.

If the free space is running out anyway:

• 📸 Transfer photos and videos to Google Photos or MicroSD (if you have a slot).
• 🎮 Remove unused games – they take up the most space (for example, Call of Duty Mobile weighs 1.5-2 GB).
• 📥 Clear Downloads: Open Files → Download and delete old apk, pdf and other files.

If nothing works, the last option is to reset to the factory settings, but before that, you must:

1. Make a backup through Settings → Additional → Backup and Reset.
2. Remember or write down passwords from accounts (they will reset).
3. Remove the microSD and SIM-Cards (the data on them will not be affected, but it is better to be safe).

To reset, go to Settings → About Phone → Reset and select Erase All Data. The process will take 5-10 minutes, after which the phone will turn on as new.

FAQ: Frequent questions about cleaning the cache on Xiaomi Redmi 9C