Smartphones of the Redmiline, including the 7-series model, begin to work slower over time due to the accumulation of temporary files. This is a natural process of operation of the operating system Android and shell MIUI. Cache memory is designed to speed up the loading of applications and pages in the browser, but its overflow leads to the opposite effect: the interface slows down, and free storage space quickly disappears.
Many users mistakenly believe that a factory reset is necessary to solve the problem. However, in most cases, it is enough to competently carry out clearing the cache without deleting personal data. In this article, we will look at all the available methods for optimizing your device, from built-in utilities to advanced actions through recovery mode.
Proper memory maintenance can extend the life of the gadget and keep its performance at a high level. You will learn how to safely remove garbage, which folders should not be touched, and how to use system tools Xiaomi to automatically monitor the system state.
What is cache and why delete it
Cache is a buffer memory that stores temporary data of frequently used apps. When you open the application for the first time, the system loads all the necessary interface elements and scripts. When restarted, this data is read from the cache, which is much faster than re-downloading from the main storage or network.
However, over time, the size of these temporary files can reach several gigabytes. Some applications, especially social networks and browsers, store huge amounts of images and videos. If you don't clean it regularly, you won't have enough space to install new updates or save photos.
It's important to understand the difference between clearing the cache and clearing data. The first operation deletes only temporary files without affecting your logins, passwords and settings. The second completely resets the application to the “as after installation” state, deleting all your history and authorization.
⚠️ Attention: Before starting any manipulations with system files, make sure that you have a backup copy of important contacts and photos, although standard cache clearing is safe for user data.
Regular cache clearing once every 2-3 weeks helps to maintain stable operation of Redmi 7 without sudden drops in performance.
Using the built-in Security application
The easiest and safest way to free up space on Redmi 7 is to use a pre-installed utility from the manufacturer. The shell MIUI has a powerful built-in tool that automatically scans the device for junk files. This method is ideal for users who do not want to delve into technical settings.
To start the process, find an icon on the desktop called “Security”, which is usually green with a shield symbol. After opening the application, click on the large round button with a trash can or lightning bolt icon. The system will instantly scan the memory and show the volume of files to be deleted.
In addition to simple garbage removal, this application offers a “Cleaning” function in the bottom menu, where you can customize the process in more detail. Here you can selectively delete specific app cache, free up WhatsApp storage space, or empty your gallery trash. The system itself suggests which files can be deleted without harming the operation of the phone.
- 🧹 Press the "Clean" button after scanning to remove all found garbage.
- 📱 Go to the "Cleaning" section to select specific categories of files.
- ⚙️ Use the "Acceleration" function to unload processes from the operating system memory.
- 🔄 Set up automatic cleaning in the Security application settings.
Manually clearing the cache of individual applications
Sometimes global clearing does not give the desired result, since some “heavy” applications continue to take up a lot of space. In such cases, you need to go into the settings of a specific service and force clear its cache. This is especially true for YouTube, Instagram and Viberthat are prone to accumulating gigabytes of media cache.
To perform this operation, go to the menu Settings of your smartphone. Find the section Applications and select item All applications. In the list that opens, find the desired app, for example, browser Chrome, and click on it. Inside the application menu, select the option Storage.
The screen will display detailed memory usage statistics. You will see two main buttons: “Clear cache” and “Clear all”. Click only on the first button if you want to save your accounts and settings within the app. The system will ask you to confirm the action, after which temporary files will be deleted.
☑️ Checking heavy applications
This method allows you to specifically deal with problems without affecting the operation of the entire system. If a particular application does not work correctly or produces errors, clearing its cache often solves the problem without the need to reinstall.
Clearing the cache through Recovery mode
For a deeper cleaning of the system, which affects not only user applications, but also the system update cache, the mode is used Recovery. This method is useful if the phone is extremely unstable, freezes when loading or after a major firmware update MIUI.
To enter this mode, you must completely turn off the smartphone Redmi 7. Then hold down the Volume Up button and the Power button at the same time. Hold them until the logo appears Mi, then release the power button, but continue to hold the volume until the main recovery menu appears.
In the menu, navigation is carried out with the volume buttons (up and down), and the choice is confirmed with the power button. You need to find the item Wipe Data or Wipe Cache Partition. Be extremely careful: selecting the item Wipe All Data will lead to a complete reset of the phone to factory settings, deleting all your files.
| Action | Risk of data loss | Difficulty | When apply |
|---|---|---|---|
| Cleaning through the app | No | Low | Daily |
| Cleaning in settings | No (when selecting cache) | Medium | For specific applications |
| Recovery (Cache Partition) | No | High | For system failures |
| Recovery (Wipe Data) | Total loss | High | Before sale or in case of critical errors |
⚠️ Attention: In Recovery mode, the interface may differ depending on the firmware version. If you are not sure of your actions, it is better to limit yourself to cleaning through the Android settings.
What to do if the phone is not included in Recovery?
If the button combination does not work, try connecting the switched off phone to the computer via a USB cable, and then hold down the buttons. Also make sure that the battery charge is at least 30%.
Features of working with the browser and social networks
Browsers and social networks are the main consumers of cache memory on any device running Android. They save image thumbnails, video previews and website scripts to speed up surfing the Internet. On the model Redmi 7 with its limited amount of built-in memory, this becomes a critical factor.
In the browser Chrome cleaning can be done directly through the app interface. Click on the three dots in the upper right corner, select History, and then Clear history. In the window that appears, make sure that the checkbox is only opposite the item “Images and other files saved in the cache.” Unchecking the “Cookies” box will leave you logged in to the sites.
Messengers like Telegram i WhatsApp have their own built-in tools memory management, which are often more efficient than system ones. In the Telegram settings there is a section Data and memory → Memory usagewhere you can not only clear the current cache, but also set a limit on its size or configure automatic deletion of media files.
- 🌐 In your browser, clear the cache once a week to speed up page loading.
- 💬 In instant messengers, use internal settings to limit the cache size.
- 📸 Disable autosaving of photos from chats to your phone gallery.
- 🗑️ Regularly delete old chats with a lot of media.
Ignoring clearing browser caches means that you may see outdated versions of sites or encounter element display errors. Timely deletion of temporary data guarantees the correct operation of web services.
Built-in messenger tools allow you to flexibly manage the cache without deleting correspondence, which is critical for preserving communication history.
Automation and useful optimization tips
In order not to constantly have to do manual cleaning, you can set up automatic scenarios. The Security app has a Scheduler feature that lets you set a time to automatically scan and remove junk. This eliminates the need for the user to remember the maintenance procedure.
In addition, it is worth paying attention to the “Advanced Cleaning” function in the same application. It finds duplicate photos, large files that you haven't opened for a long time, and installation packages APKleft over after updating apps. Deleting this data can free up up to several gigabytes of space.
Don't forget that performance depends not only on free space, but also on the number of processes running in the background. Regularly close applications you don't use through the multitasking menu. Although the system itself manages the RAM, manual cleaning helps in situations where the phone begins to “heat up.”
⚠️ Attention: The interface and names of menu items may vary slightly depending on the version of MIUI installed on your Redmi 7. Always check the current menu view on the screen.
Remove weather and news widgets from the main screen, if you don’t need them, they constantly update data and clog the system cache.
Frequently asked questions (FAQ)
Will my correspondence be deleted when clearing the cache?
No, clearing the cache affects only temporary files. Your correspondence, contacts and application settings will remain safe. The correspondence will be deleted only if you click the “Clear all” or “Erase data” button.
How often should you clear the cache on Redmi 7?
The optimal frequency is once every 2-3 weeks when actively using the smartphone. If you notice that the phone has started to work slower or the memory is full, the procedure can be performed unscheduled.
Is it safe to use third-party applications for cleaning?
In most cases, the built-in MIUI tool is sufficient. Third-party applications (such as Clean Master) often consume a lot of resources and show intrusive advertising, which can slow down the weak processor of Redmi 7.
Why does the cache quickly fill up again after cleaning?
This is normal system behavior. Applications again begin to create temporary files for their work. If the cache grows abnormally quickly (gigabytes per day), perhaps some application is not working correctly and requires reinstallation.
Is it possible to clear the cache of all applications at once with one button?
Yes, this is done by the built-in Security application when you press the scan button. Also in the storage settings, a mass clearing option is sometimes available, but it is less detailed than manual control.