Redmi smartphones are famous for their performance, but even powerful hardware can work slower over time due to the accumulation of temporary files. If your Xiaomi Redmi 8 Pro started to slow down when switching between applications or takes longer than usual loading pages in the browser, most likely it is the overgrown cache. Clearing this data is the safest and most effective way to return the device to its former friction without losing personal photos or contacts.
Many users are afraid to delete system files, believing that it can harm the MIUI operating system. However, cleaning the cache is a routine procedure provided by developers to maintain the hygiene of the system. In this article, we will examine all available methods, from simple cleaning through the standard menu to the use of hidden engineering options that will help free up gigabytes of valuable space.
Before we start taking radical action, it's important to understand what we're removing. Temporary files are created by apps to quickly load commonly used items, but over time they can conflict or take up space that new data needs. Let's figure out how to do this Step-by-step.
What is Cache and Why It Slows Down Redmi 8 Pro
Cache is a buffer area reserved for storing intermediate data. When you run an application, such as a social network or a navigator, the system reads some of the information from a fast storage so that it doesn't go to a slow server or disk every time, which speeds up work, but only until the file volume becomes critical.
Xiaomi devices with MIUI shell have two main types of cache: custom (from applications) and system (Dalvik/ART). The first takes place in the user section, the second affects the speed of startup of the operating system itself. When space becomes scarce, the Redmi 8 Pro processor has to spend resources to find free memory cells, which causes lags.
โ ๏ธ Note: Clearing the app cache does not delete your logins, passwords or correspondence. However, cleaning the data (not to be confused with cache) will completely reset the application to the state after installation.
Excessively filling in temporary files can lead to errors in the operation of programs, for example, you can see the old version of the page in the browser or receive messages about a lack of memory when trying to take a photo. Regular maintenance of the file system prevents these problems.
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Install automatic cleaning in the Security app for the time you sleep so that your phone is always optimized in the morning.
Cleaning the cache through the standard Security app
The easiest and safest method for Redmi 8 Pro owners is to use the built-in optimization tool. Xiaomi preinstalles the Security utility, which has access to system partitions and can remove debris without risking damage to important files.
To get started, open the app menu and find an icon called Security (green shield). Run the scan by clicking on a large button in the center of the screen. The system will analyze the memory status and suggest that you delete the temporary files found.
โ๏ธ Quick cleaning algorithm
After the initial check is complete, go to Clean up (the broom icon) and you will see a more detailed list of large files, rarely used apps and cache, clicking on Cash will allow you to choose which data to delete and which to leave.
Note that the system may suggest removing the cache of applications that have just been launched. This is normal, because MIUI considers them temporary. If you plan to continue working immediately in the browser or messenger, it is better to leave their cache so that the processor does not load with rebooting data.
Manually cleaning the cache of specific applications
Sometimes the problem isn't with the system as a whole, but with one "heavy" application that mismanages its time data. Social networks like Telegram or VK can accumulate gigabytes of photos and videos viewed, and you need to manage them individually through settings.
Go to the Settings menu and select the App. In the list that opens, find All Apps. This shows the full list of installed software. Find the program you want, like YouTube or Instagram, and click on it.
- ๐ฑ Select the application from the list in the section "All applicationsยป.
- ๐๏ธ Click on the memory or storage button inside the program menu.
- ๐งน Select the option Clear cache (not to be confused with Clear everythingยป).
- โ Confirm the action in the pop-up window.
It is important to distinguish between Clear Cache and Clear Everything (or Reset) buttons: the first deletes only temporary files, the second deletes all your settings, logins and data within the application. Be careful when you click so that you do not lose progress in games or drafts in messengers.
For some applications, such as Google Chrome or Yandex.Browser, it is more effective to clean through their own internal settings, usually in the โHistoryโ or โPrivacyโ section, which gives you more flexible control: you can delete the cache in the last hour or at all times.
Why is Telegram's cache so big?
Using Developer Mode for Deep Cleaning
For advanced users of Xiaomi Redmi 8 Pro, a hidden settings section is available to manage the system cache more deeply.Development mode gives access to features that are usually hidden from the average user, including Dalvik cache reset.
To activate this mode, go to Settings โ About Phone. Find the MIUI Version bar and quickly click on it 7-10 times in a row until the notification โYou became a developerโ appears. Then a new option will appear in the settings menu Additional or Advanced Settings.
| Function | Description | Impact on the system |
|---|---|---|
| Clearing DALVIK's cache | Delete optimized application files | Accelerates application launches after reboot |
| Resetting network settings | Cleaning up the DNS and Bluetooth cache | Solves problems with Wi-Fi connection |
| USB debugging | Allowing computer access | It is necessary for deep cleaning through ADB. |
You can find animation and background options on the developer menu, and disabling background processes also helps free up RAM, which indirectly affects the speed of cached data, but don't turn off processes you don't know what they're doing.
Using these tools requires caution. Changing the rendering settings or buffer size can lead to unstable interfaces. If the phone starts to behave strangely after the changes, just return the default settings to the same menu.
Cleaning the system cache through Recovery Mode
The most radical, but also the most effective method is to clean the cache partition through the Recovery Recovery menu, which does not delete your personal data (photos, contacts), but completely cleans the system temporary files that are not visible in normal mode.
To enter recovery mode on the Redmi 8 Pro, you need to turn off the phone completely. Then press the Volume Up button and Power button at the same time. Hold them until the Mi logo appears, then release the power button, continuing to keep the volume up until the Recovery menu appears.
โ ๏ธ Attention: In the Recovery menu, the touch screen may not work. Navigation is done with volume buttons (up/down), and the choice is confirmed by the power button.
In the main menu, select a language (if available) or immediately look for Wipe Data. Some versions of MIUI have a separate Wipe Cache. If there is no separate option, choose Wipe Data, but be careful: choose Wipe Cache, not Wipe All Data. The second option will completely delete all your files.
Once confirmed, the system will clear the partition. The process will take a few seconds. Upon completion, select Reboot โ Reboot to System. The first run after this procedure can last longer than usual (up to 5-10 minutes), as the system will recreate the necessary temporary files.
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The first run after cleaning the cache partition in Recovery can be slow โ this is normal, the system rebuilds the file index.
Automation and third-party utilities
If manual cleaning seems too time-consuming, automated solutions can be used. There are many optimization apps on the Google Play store, but Xiaomi devices often have enough built-in tools. Third-party programs can even slow down by constantly working in the background.
One of the tools we've tested is Files by Google, which analyzes memory content and suggests removing junk files, duplicates and old screenshots, and is secure and doesn't require superuser rights, and integrates well with Android and doesn't conflict with MIUI.
You should also pay attention to the settings of the storage itself. In the Settings โ Memory section, you can turn on the Memory Cleanup feature if it is available in your firmware version, it will automatically delete the cache of applications that you havenโt used for more than 30 days.
Remember that no program can replace the periodic reboot of the device. Turn off your Redmi 8 Pro at least once a week. This allows the operating system to reset errors in RAM and complete the hung background processes that often cause the cache to inflate.
- ๐ Use the built-in Safety app for weekly prevention.
- ๐ Check the Downloads folder regularly for unnecessary files.
- ๐ Reboot your smartphone once a week to reset system processes.
- โ๏ธ Turn off autoboot for rarely used apps.