Xiaomi Redmi 4 smartphones have proven to be reliable budget devices, but over time, even the most powerful processor can start to stumble due to the accumulation of temporary files. This data, known as cache, is created by applications to speed up their work, but when excessive accumulation begins to slow down the system. Users often notice that the phone opens a menu for a long time, programs fly out or the device quickly discharges.
Cache cleaning is a safe and effective procedure that allows you to return the gadget to its former sharpness without losing personal photos or contacts. Unlike a complete reset, this operation only affects temporary files that can be recreated. Regular memory maintenance is an important part of the operation of Android devices, especially models with limited built-in storage.
In this article, we will take a look at all the cleaning methods available, from standard system tools to advanced engineering menu features. You will learn which folders can be manually deleted and which should not be touched so as not to disrupt the MIUI operating system. A competent approach to memory management will extend the life of your Redmi 4 and make it more comfortable to use.
Why you need to clean the cache on Android smartphones
Cache serves as a buffer for storing frequently used data, allowing applications to load faster, but when the volume of these temporary files becomes too large, they begin to take up precious space, which is not enough on budget models like Redmi 4, which leads to a lack of free space for installing new programs or saving media files.
In addition, old or corrupted cache files can cause conflicts in the operation of the software. If the application constantly freezes or closes immediately after launch, the problem often lies in incorrect temporary data. Clearing the cache helps to eliminate such errors, forcing the program to create new, working files from scratch.
Another important aspect is power consumption: Background processes that attempt to process a bloated cache can load the processor, causing the housing to heat up and quickly discharge the battery. Regular cleaning helps maintain a balance between performance and autonomy of the device.
- 🚀 Accelerating application launch and system interface
- 💾 Freeing up space in internal memory for new files
- 🛠 Eliminating errors, freezes and spontaneous reboots
- 🔋 Reducing the load on the processor and saving battery power
Now, you have to understand that cache is not a virus, it's not a garbage tool, it's a working tool, but like any tool, it requires periodic maintenance, and ignoring this procedure can cause the phone to run so slowly that it becomes a test.
Use of the built-in "Security" application
The easiest and safest way to clear the cache on Xiaomi Redmi 4 is to use the regular Security app preinstalled in the MIUI shell. Xiaomi developers have integrated a powerful set of optimization tools that do not require installing third-party software. This method is ideal for most users, as it eliminates the risk of deleting important system files.
To get started, you need to find an icon on your desktop called “Security” and run it. In the menu that opens, you should select the Cleaner section, and the system will automatically scan and show the amount of temporary files that can be deleted without any personal data consequences.
☑️ Checking before cleaning
Once the analysis is complete, a Clean button will appear on the screen, and clicking on it will trigger the process of deleting temporary files. It is important to note that this feature only removes the secure cache, without affecting logins, passwords and game progress, if they are saved in the account.
⚠️ Warning: After clearing the cache, some applications (such as browsers or maps) may open a little slower on the first run, which is normal, as they re-form the necessary temporary files.
The Security app also has a deep cleaning feature that allows you to find large files, duplicate photos and unnecessary.apk installation packages. Using this tool helps free up even more space, making working with Redmi 4 more comfortable.
Manual cleaning of the cache through system settings
If the automatic cleaning didn’t work, or if you need to make room for a specific “heavy” application, you should use the manual method, which allows you to more flexibly manage memory and delete data only from selected programs. → Annexes → All applications.
In the list that opens, find the app you want (like YouTube, Instagram, or browser). In the menu, select Memory or Storage. Here you will see two main buttons: Clear Data and Clear Cache. Our task requires a second button.
| Type of data | What's removed | Impact on the account | Recommendation |
|---|---|---|---|
| Cash. | Temporary files, thumbnails, logs | Not affected (authorization is retained) | It is safe to remove regularly |
| Application data | Settings, logins, saving games | Full reset (exit from the account) | Only when reinstalled or errors |
| All data. | Complete removal of the program | Removing the application from the phone | If the application is no longer needed |
Manual cleaning is especially useful for messengers like Telegram or Viber, which can accumulate gigabytes of cached images and videos. Their settings often have their own memory management tools, but the system method works universally for any software.
Don’t be afraid to press the cache clearing button for system applications like Google Play Services or system launcher. Android will automatically restore the necessary temporary files in the background, and you will get a performance boost.
Cleaning through Recovery Mode and Engineering Menu
For advanced users facing serious problems with the Xiaomi Redmi 4, there is the option of cleaning the system cache through Recovery Mode, which is useful if the phone is unstable, constantly restarting or can not boot to the desktop.
To get into the Recovery menu, you need to turn the device off 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, keep the volume up. In a few seconds, the English interface menu will open.
What to do if the Recovery menu does not open?
In the menu, the navigation is done with volume buttons (up/down), and the choice is confirmed by the power button. Find the Wipe Cache Partition and select it. The system will warn you that the action is irreversible (although personal data will not be affected), and after confirmation, the cleaning process will start.
⚠️ Note: In Recovery mode, do not select the Wipe option. Data/Factory Reset, if you want to save your photos and contacts, this item will completely destroy all the data on the phone, returning it to a factory state.
Once the process is complete, select Reboot → Reboot to System. The phone will boot as usual but with the system area cleared of temporary files. This often resolves problems after a failed firmware update.
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Recovery Mode is a radical but effective way to treat software errors when standard cleaning methods don’t help.
Analysis and removal of garbage in folders manually
The deepest level of cleaning involves working with the file system through a Explorer. Redmi 4 is convenient to use the built-in Explorer application. However, you need to be very careful, since deleting an excess file can lead to malfunctioning programs.
First of all, you should pay attention to folders with the names of remote applications, often after uninstallation of the program, its cache folder remains dead weight. DCIM/.thumbnails (gallery miniatures) and MIUI/debug_log (log-debugging).
- 📂 Android/data — Stores a cache of games and heavy applications (you can delete content, but programs will reset settings)
- 📂 Download – a download folder where forgotten installers and documents often accumulate
- 📂 Tencent/MicroMsg — WeChat junk files (if you use them)
- 📂 SystemUI - Cache interface, can be cleaned if the desktop is lagging
You can use size-sorting to find large files, and in Explorer, select memory analysis or simply sort files at the root of internal memory, often with forgotten video files or archives that take up gigabytes.
It is not recommended to delete files with the.obb extension manually if you are not sure of their belonging. These files contain data for games, and their removal will lead to the need to download gigabytes of data again when you start the game.
Prevention and automation of the process
So you can set up process automation to avoid manual cleaning all the time, and there's a memory booster in the MIUI shell that clears RAM when you unlock the screen or schedule, and you can activate it in the Security settings.
It’s also a good idea to make a habit of browsing the Downloads section once a week and deleting unnecessary files, and many users forget that downloaded files from instant messengers are automatically stored in the phone’s memory, taking up space.
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Use the Memory Map feature in your storage settings to visually assess which apps take up the most space and decide whether to remove or clean them.
Another tip for Redmi 4 owners is to limit the background activity of heavy applications, and in the battery settings, you can prevent programs from running in the background, which will not only save charge, but also reduce the amount of cache they create.
Regular maintenance is key to a long smartphone life. Don't wait for the phone to start choking on space. Simple cache cleaning activities, taking a couple of minutes a week, will ensure that the device runs smoothly throughout its life.