Modern smartphones like the popular Xiaomi Redmi 5 are slowing down over time, and one of the main reasons for this is the accumulation of temporary files. Cache files are created by the system and applications to speed up the load of frequently used data, but their excess can take up gigabytes of precious memory. Device owners often notice that after several months of active use, the interface begins to slow down and applications open longer than usual.
Cache cleaning is a safe and effective procedure that doesn’t delete your personal photos or contacts, but returns your device to its former briskness. In this article, we’ll take a look at all the cleaning methods available, from standard MIUI shell tools to the use of an engineering menu. Regular file system maintenance allows you to extend the life of the drive and avoid critical errors in the Android operating system.
Before you start taking action, it is important to understand the difference between the application data and its cache. Deleting data will reset the program to its original state, as in the first install, while cleaning the cache only removes temporary files. For owners of Redmi 5, this procedure is especially relevant, since the model released several years ago has a limited amount of internal memory by modern standards.
Why you need to clean up cache memory on Redmi 5
The Android operating system is designed to store some information for quick access, for example, the browser saves copies of the pages visited, and social networks saves thumbnails of images from the tape. Over time, these files fragment and take up space that could be used to install new programs or save media files. If you do not prevent, the free space ends, and the system begins to work unstable.
The MIUI shell features aggressive memory management, but even it doesn’t always manage to properly remove garbage. Cache can lead to unexpected application crashes, interface freezes and increased battery consumption, as the processor is forced to constantly search for the right data in the chaos of temporary files. On the Xiaomi Redmi 5 model with its modest characteristics, this is felt especially acutely.
There is a myth that constantly cleaning the cache harms the battery or the system, but it is not. Mechanical deletion of temporary files through regular means is safe. However, avoid dubious programs from the Play Market that promise “super-acceleration.” Xiaomi’s built-in tools work much more efficiently and do not require the installation of additional software, which itself consumes resources.
⚠️ Warning: Don't confuse cache cleaning with a full Hard Reset.Cache cleaning is safe for your personal data, while reset will delete all photos, contacts and installed programs without the ability to recover.
Use of the built-in "Security" application
The easiest and most reliable way to free up space on Redmi 5 is to use a pre-installed utility from the manufacturer, which is deeply integrated into the system and has access to all the necessary memory parts. To get started, find an icon on your desktop called "Security" (green shield) and run it. This application is the performance control center of your device.
In the main utility menu, you'll see the Clean Up button. Once you click, the system will scan the device and suggest that you delete temporary files. However, for a deeper cleanup, click on the Clean Up button in the Garbage section, and then go to the advanced settings if they are available in your version of MIUI. The system will determine which files are safe to delete.
It’s important to note that the built-in scanner sometimes leaves some large social media cache files as useful data. So after automatic cleaning, it’s recommended to check the Storage section in the phone’s settings, where you can manually remove the cache of heavy apps like Telegram, Instagram or YouTube that tend to accumulate gigabytes of data.
☑️ Quick cleaning algorithm
Regular use of a regular cleaner helps keep the system on track. Auto-cleaning can be set up on a schedule so that the phone can make room for itself, for example, once a week, which saves the user from having to constantly monitor the memory filling by hand.
Manually cleaning the cache of individual applications
If a particular application is not working properly or takes up too much space, you can clear the cache individually. Go to Settings → Apps → All apps. In the list that opens, find the desired program, such as Google Chrome or Viber, and click on it. In the menu that opens, select Memory or Storage.
You will see two main buttons: Clear (or Clear cache) and Delete data. Pressing the first button will only delete temporary files, which often solves the problems with the app freeze. The second button will return the program to the “just out of the store” state, removing logins, passwords and settings, so use it with caution.
In Xiaomi Redmi 5, the cache of a gallery or video player can grow to obscene size. Periodic cleaning of these components does not affect your stored photos and videos, but removes thumbnails and buffered snippets, which is especially useful if you are actively shooting videos or watching streaming content.
What to do if the “Clean” button is inactive?
There is also a hidden way to clear the cache of all applications directly through the developer menu, but it requires accuracy. The standard path through application settings is more visible and allows you to control how much space each particular program takes up. This helps to identify “hidden memory eaters”, which you might not have guessed existed.
Recovery Mode (Wipe Cache Partition)
For advanced users who want to do a deep cleaning of the system cache, Recovery mode is designed. This method removes temporary files of the operating system itself that are not visible during normal operation. To enter this mode on Xiaomi Redmi 5, you need to turn off the phone completely. Then press the Volume Up and Power buttons simultaneously.
When the Mi logo comes up, you can release the power button by holding the volume button. In a few seconds, the Recovery menu will open. The volume buttons (up-down) control it, and the power button confirms the choice. You need to find the Wipe Cache Partition. Don't confuse it with Wipe Data/Factory Reset, which will delete all your personal files!
Once you have selected a cleanup point, the system will request confirmation. Select Yes and wait for the process to be completed. It will only take a few seconds. Once you have successfully cleaned, select Reboot System Now to restart the phone. The first run may take longer than usual, as the system will recreate the necessary temporary files.
| Cleaning method | Level of risk | Efficiency | Data security |
|---|---|---|---|
| Security annex | Low. | Medium | Complete. |
| Application settings | Low. | High (for specific software) | Complete (if not deleted) |
| Recovery Mode | Medium. | Maximum (system cache) | Complete. |
| Third-party utilities | Medium. | Variable | Depends on access rights. |
⚠️ Attention: Recovery mode only uses hardware buttons. Touchscreen doesn't work in this mode, so click on the screen pointlessly. Be careful when selecting a menu item so you don't activate a full reset.
Cleaning the DNS cache and browser
Often, problems with the Internet or page loading are not related to the memory of the phone, but to the cache. DNS You can reset the Xiaomi Redmi 5. DNS-cache, which helps solve problems with connecting to certain sites. To do this, open the phone app and dial the command ##4636##.
In the testing menu that opens, select Wi-Fi Information or a similar item where the Flush DNS button is available. This action will update routing tables. For browsers like Chrome or the built-in MIUI Browser, it is best to clean through their own settings in the Privacy section → Clear History.
When cleaning your browser history, make sure to tick the “Cookies” box only if you want to save authorization on sites. If your goal is to completely reset the browser state, then you can mark all points. This is especially useful if the pages are displayed incorrectly or contain layout errors due to outdated styles in the cache.
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To quickly clean the cache of the current application in MIUI, you can hold the program icon on the desktop for a long time, click “About the application” and immediately go to memory management.
Automation and third-party solutions
While Xiaomi’s built-in tools are good enough, some users prefer third-party solutions for more flexible management, such as Files by Google or SD Maid, which allow you to find residual files that a standard cleaner misses.
It's important to understand that installing Task Killers on modern versions of Android makes no sense and even harms autonomy. The system itself effectively manages RAM, forcibly closing processes that have not been used for a long time. Constantly restarting background services only increases battery consumption, since the processor has to restart applications.
The best automation for Redmi 5 is to set up a cleaning schedule in the built-in Security app. Go to the cleaner settings and set a frequency, for example, once every 3 days or when a certain memory filling threshold is reached, which will ensure stable operation without your intervention.
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The use of third-party accelerators on Xiaomi is often excessive: the built-in MIUI optimization works more efficiently and does not consume the battery for constant monitoring of the system.