Xiaomi Redmi 7, released in 2019, is still a popular device due to its balance between price and performance. However, over time, the MIUI operating system accumulates a large number of temporary files that can significantly slow down the gadget. Users often notice that the phone begins to respond to touch longer, and applications open with a noticeable delay.
The main cause of these problems is overcrowded RAM and cluttered internal storage. Cached data is designed to speed up the loading of frequently used items, but their excess has the opposite effect. In this article, we will discuss in detail how to safely and efficiently clean the cache on shaomi redmi 7 without deleting important personal data.
The cleanup procedure does not require root rights or a computer connection. All the necessary tools are already built into the MIUI shell, making the process accessible even to inexperienced users. Proper file system maintenance will help extend the life of your device and return it to its previous speed.
Why you need to clean the cache on Redmi 7
Many smartphone owners mistakenly believe that cache is a highly useful feature that should not be touched. In fact, temporary files tend to accumulate uncontrollably, taking up precious gigabytes on the built-in drive. In the Redmi series of limited memory, this becomes a critical factor.
When the system lacks space to record new temporal data, it becomes stressful, leading to frequent interface freezes and spontaneous closure of active applications, and regular cleaning frees up resources for system processes, ensuring smoother operation.
In addition, corrupted or outdated cache files can cause conflicts in the operation of programs, for example, updating the version of an application may not work properly with old temporary data, Clearing the cache in this case acts as a preventive tool to eliminate software errors.
⚠️ Warning: Don't confuse cache cleaning with full settings reset. Deleting temporary files is safe for your photos, contacts and correspondence, while resetting will destroy all data on the device.
It is important to understand the difference between app cache and system cache: the former are created by specific programs (social networks, browsers, games), and the latter are necessary for the functioning of Android itself. Both types need to be cleaned, but this should be done in different ways, which will be discussed below.
Use of the built-in "Security" application
The easiest and most reliable way to clean the cache on the Xiaomi Redmi 7 is to use a regular tool from developers. The MIUI shell preinstalled the Security app, which automatically scans the device for junk files, a method ideal for rapid daily prevention.
Run the app through the home screen or Tools folder. On the main screen, you'll see a large green button that says Speed or a pie chart. Pressing this button initiates a scanning process for temporary files, remnants of deleted programs and advertising debris.
☑️ Checking before cleaning
Once the scan is complete, the system will suggest that you delete the files you find, but don't blindly agree with everything the algorithm suggests. Carefully study the Cleanup section, where you can see in detail what exactly takes up space, and often there are heavy files from messengers that you may want to save.
For a deeper cleanup, go to the Cleanup tab inside the app, and you can see the categories "Junk," "Big Files," "Applications," "Photos," and "Documents." The system itself classifies data, allowing you to selectively delete the unnecessary, which is especially useful if you want to make room for a specific task without touching your personal archives.
⚠️ Attention: Large Files often include uploaded videos from WhatsApp or Telegram, and carefully check the content before deleting so you don’t lose important media files.
Clearing the cache of individual applications through settings
If the smartphone is slow only in certain programs, for example, slows YouTube or freezes Instagram, then global cleaning may not help.
It's the core functionality.
To do this, go to the Settings menu and select the App. Next, click on All Apps. In the list that opens, find the problem program. Inside the app menu, you are interested in the Memory section, which displays the amount of space occupied and the cache size.
Click Clear and select Clear Cache. It is important not to confuse it with Clear Everything or Reset, as the last action will delete your logins, passwords and settings inside this application. Once the cache is cleared, the program will start as the first time, but your personal data (correspondence, gallery photos) will remain in place.
Why does the app's cache weigh so much?
Special attention should be paid to system applications such as Gallery or Downloads. If they work incorrectly, cleaning their cache often solves the problem. In some cases, after cleaning the cache, the system may suggest updating the components of Google Play, which is also useful for the stabilization of the system.
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Deep cleaning through the Recovery menu
For more advanced users who want to do a deep cleaning, there is a Recovery mode, which allows you to delete temporary files that are not visible during normal operation of the system, but you need to use it with caution, strictly following the instructions.
To enter recovery mode, turn off the smartphone completely. Then press the Volume Up button and the Power button at the same time. Hold them until the Mi logo appears, then release the power button, while continuing to keep the volume. You will be taken to the Main Menu menu.
Navigation in this menu is done with volume buttons (up/down), and the choice is confirmed by the power button. You need to find the Wipe Data item. Within this section, select the Wipe Cache option. The system will warn you of the consequences, confirm the action.
| Parameter | Description | Risk of data loss |
|---|---|---|
| Wipe Cache | Clearing temporary system files | No (safe) |
| Wipe All Data | Full reset to factory settings | Tall (removes everything) |
| Reboot | Rebooting the device | No. |
| Connect with MIAssistant | Connecting to a PC for firmware | Depends on the action. |
Once the cleaning process is complete, select Reboot to restart your smartphone. The first download may take longer than usual, as the system needs to recreate the necessary temporary files, a method that is particularly effective after major MIUI updates.
Cleaning the cache through the developer menu
Android has a hidden menu for developers that gives you access to more subtle system settings. Although the main function of this menu is debugging, it also allows you to manage the cache size for running processes, which is useful if standard methods do not give the desired result.
To activate the developer menu, go to Settings → About Phone. Find the MIUI version and quickly click on it 7-10 times in a row. You will notice that you have become a developer. Now a new option will appear in the settings menu Additional → For developers.
Inside the menu, find a section that's associated with memory or processes. While there may not be a direct "Clear all cache" button, you can limit background processes, which will indirectly reduce the amount of debris generated, and there's also a Don't keep activities feature that eliminates activity immediately after you leave it, preventing cache accumulation.
Using this method requires caution. Incorrectly configuring the developer parameters can lead to unstable interface operation. If you are not sure about your actions, it is better to limit yourself to the standard cleaning methods described above.
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If the phone continues to brake after cleaning the cache, try turning off the animation in the developer menu. Setting a value of "0.5x" or "No animation" will visually speed up Redmi 7.
Third-party utilities for cleaning memory
If built-in tools are not enough, you can turn to third-party apps from the Google Play Market. There are many utilities, such as Clean Master, CCleaner or Files by Google, that specialize in finding and removing junk files. They often find what a standard analyzer misses.
The advantage of these programs is that they can analyze the file system more deeply and plan for automatic cleaning, but it's worth remembering that installing additional applications consumes RAM resources on its own. On a device like Redmi 7 with 2 or 3 GB of RAM, this can be critical.
It is recommended to use only time-tested applications from well-known developers. Avoid questionable “accelerators” that promise incredible performance gains, but in fact only show ads. The best choice is often Google’s simple Files app, which safely and efficiently removes duplicates and temporary files.
⚠️ Warning: Be careful with applications that require advanced permissions. Do not give access to your contacts or location to memory cleaners, it is not necessary for them to work.
Frequently Asked Questions (FAQ)
Is it safe to delete the cache of all apps at once?
How often do I need to clean the Redmi 7 cache?
Will my WhatsApp correspondence be deleted after the cache is cleared?
Why does the cache fill up quickly after cleaning?
Can cleaning the cache increase battery life?
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Regularly cleaning the cache is a simple habit that prolongs the life of a smartphone. On Redmi 7, where resources are limited, releasing even 500 MB of memory can significantly speed up the interface.