How to Clean Cache on Xiaomi Redmi 9: The Complete Guide

Redmi smartphones have been leading the budget and mid-market for years, and the Redmi 9 is no exception. However, over time, even the most powerful processor can start stumbling because of accumulated digital debris. The main culprit behind slowing down the interface and launching programs is often a crowded system partition, filled with temporary files.

Device owners often notice that the phone is starting to heat up or the battery is running out for less time, and don't always understand the reason.In fact, regular software maintenance is just as important as physical case care. In this article, we'll take a look at all the available ways to delete temporary data so that your gadget works again with maximum performance.

Why you need regular cleaning of cache on Android

The Android operating system is designed to make temporary copies of data for faster loading, allowing the browser to instantly open previously visited pages, and social networks to show feed without delay, but over time these files accumulate, occupy gigabytes of usable area and may contain errors that cause crashes.

When the free space on the internal drive approaches a critical point, the system starts to work slower. The cache files can conflict with each other if the application has been updated and the old data remains, which is why periodic cleaning is a mandatory procedure to maintain the stability of the Redmi 9.

It is important to understand the difference between cache and user data: Deleting cache will not affect your logins, passwords, correspondence or saved photos, but you will only get rid of temporary garbage that the program can create again at any time if necessary.

⚠️ Warning: Don't confuse cache cleaning with application data deletion. The second operation will completely reset the program to its original state, removing all your settings and authorization.

There is a myth that cleaning the cache extends the life of the battery, and although this is not quite true, freeing up the CPU resources from processing unnecessary files does reduce the load on the system, which indirectly affects power consumption.

Use of the built-in "Security" application

Xiaomi preinstalles a powerful system tool called Security on its devices, which is the easiest and most secure way for beginners to install third-party software, and automatically scans the device for junk files and prompts them to be deleted in one click.

To start the procedure, look for an icon on your desktop called "Security" (often green). Inside the interface, select "Clean Up" and the system will analyze and show you the amount of files that can be safely deleted, usually in less than a minute.

Once you've finished scanning, you'll see a list of categories that occupy space. Press the clean button to free up space. This method removes not only the app cache, but also advertising files, remnants of remote programs and empty folders.

You can enable automatic cleaning in the Security settings, and then go to the janitor settings and activate the Clean Auto function, which will allow you to keep order in the background without you.

⚠️ Warning: Built-in cleaner can be aggressive to the cache of frequently used applications, which will lead to their longer run next time.

Manually cleaning the cache of individual applications

Sometimes you only need to delete temporary files from one particular program that doesn't work properly, for example, if YouTube freezes or Instagram doesn't download a story, the problem may lie in the damaged cache of that application, and manual method gives you complete control over the process.

To do the cleaning, go to your smartphone's Settings menu. Find the Apps section and select All Apps. From the list that opens, find the program you want, like Google Chrome or WhatsApp.

Inside the app menu, look for Memory or Memory Use, where you'll see two buttons: Clear cache and Clear everything. Choose the first option to keep your data safe, a method that's particularly effective for heavy social media.

Once cleaned, it is recommended to close the application completely through the menu of running tasks and open it again, which will allow the program to create new, correct temporary files from scratch.

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To quickly clean the cache of the current application, you can pinch its icon, select “About the application” and immediately go to memory management.

Clearing the cache through the Recovery menu (Recovery Mode)

More advanced users are available system partition Recovery, which allows you to clear the system cache (Dalvik/ART This method is useful if the phone brakes heavily after updating firmware or installing a large number of applications.

To enter this mode, you need to turn off the smartphone completely. Then press the volume button and the power button at the same time. Hold them until the MI logo appears, then release the power button, but continue to keep the volume until the menu appears.

Loudness + and Nutrition → Hold until vibration → Recovery Menu

The menu uses volume buttons (up/down) and the power button confirms the choice. Find the Wipe Cache Partition. Don't confuse it with Wipe Data, which will delete all your files!

Once confirmed, the system will clear the system temporary files. This takes a few seconds. Upon completion, select Reboot → Reboot to System. The first run may take longer than usual.

⚠️ Warning: Recovery mode entry on locked bootloader devices may be limited.Be careful when navigating to avoid dropping your phone to factory settings.

Removing the cache in safe operation mode

If the smartphone is unstable and you can’t log in normally, you can use Safe Mode, which only downloads system applications, allowing you to remove cache from problematic third-party programs that normally block the system.

To enter Safe Mode on Xiaomi Redmi 9, press and hold the Off button on the screen. When the Turn Off icon appears, press and hold your finger on it until the prompt to go to Safe Mode appears. Confirm the action.

While in Safe Mode, repeat the manual cleaning procedure through the settings as described in the previous section. Since third-party applications are not active, they will not be able to prevent their temporary files from being deleted.

To get out of safe mode, just reboot the device in the usual way. Once turned on, all your applications will return, but their cache will be cleared, which can solve the problems with hanging.

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Safe Mode is the ideal tool for diagnosing and removing cache applications that cause conflicts in the normal operation of the system.

Process automation and third-party utilities

If manual cleaning seems too time-consuming, you can use third-party optimization apps, but it is worth remembering that on modern versions of Android they have limited access rights compared to the built-in MIUI.

Popular solutions like CCleaner or Files by Google can analyze folder structure and find forgotten files in downloads or junk.They are convenient for finding "heavy" files that are not cache but take up space.

It's not recommended to install "RAM accelerators" or aggressive cleaners that are constantly hanging in the background. They consume more battery life than they save, and often show intrusive advertising. The built-in MIUI mechanism is quite enough for everyday tasks.

The best automation is the right habit: take 2 minutes to check the storage once a week, and many browsers allow you to set up automatic history and cache cleanup when you close the program in their own privacy settings.

Regularly removing unused apps also helps keep the cache in check, and the fewer programs installed, the less debris they generate in the background, even if you rarely use them.