Xiaomi smartphone owners often face a situation where the device starts to run slower, applications open longer than usual, and free space in memory is rapidly running out. The main reason for such problems is the accumulation of temporary files, or cache, that systems and applications create to speed up their work. Over time, this useful mechanism begins to do more harm than good, taking up gigabytes of valuable space.
Redmi 7, despite its age, remains popular due to its reliable battery and optimized shell MIUI. However, the amount of internal memory in the basic versions is limited, and overflow storage can lead to unstable operation of the Android operating system. Regular maintenance of the device allows you to extend its active life and maintain performance at an acceptable level.
In this article, we will take a look at all the cleaning methods available, from standard system tools to hidden engineering menus, which files can be deleted without fear of losing important data, and how to correctly diagnose the memory status of your gadget. A competent approach to file system maintenance is the key to the long life of your smartphone.
Why you need to clean the cache on Redmi 7
Cache is a buffer memory in which applications store temporary data for quick access, such as a browser that stores pictures of visited sites, and a navigator that stores maps of the terrain, which allows you not to download information again every time, which saves traffic and speeds up interface response, but with prolonged use, the amount of data can grow to inadequate sizes.
When disk space runs out, the Android operating system starts to run in stress mode, lacks space to create new temporary files and swap files, which leads to visible brakes. Memory fragmentation and overflow of system partitions are the main symptoms that require user intervention.
⚠️ Note: Clearing the cache does not delete your personal photos, contacts or instant messengers, but some accounts may need to be logged in again, as session data is also stored in temporary files.
There are several types of cache that take up space on your Redmi 7. System cache is responsible for the operation of the interface and basic functions of MIUI. App cache stores data of specific programs such as YouTube, Instagram or games. Separately, it is worth highlighting the Dalvik cache, which optimizes the launch of programs, but when compilation errors can take up extra space.
Cleaning regularly not only helps to free up space, but also corrects software errors. If an application crashes or freezes all the time, resetting its cache often solves the problem without having to reinstall it completely, which is the first step in diagnosing software problems.
Cleaning the cache through the standard Security app
Xiaomi’s MIUI shell features powerful built-in tools to maintain the system. Security combines antivirus, memory cleanup and permission management, and is the easiest and safest way to remove garbage for the average user without requiring deep knowledge.
To start the procedure, you need to find an icon on your desktop or in the Tools folder called Security, whose icon is usually in the form of a green shield. Once the application is launched, the system will automatically scan for malware and junk files. If automatic scanning has not begun, click on the Cleanup button in the center of the screen.
Once you've done the analysis, you'll see a list of files that you can delete, the system will prompt you to clear the cache, the remnants of deleted applications, and the advertising files, click the "Clean" button to start the process, and depending on the amount of garbage you've accumulated, it'll take seconds to a minute to do the operation.
☑️ Checking before cleaning
It's important to understand that standard cleaning only removes surface debris. It doesn't affect the cache of heavy apps like Telegram or Spotify, which can take gigabytes. Deeper cleaning will require manual storage management, which will be discussed in the next sections. However, for weekly maintenance, the built-in tool is ideal.
Manually cleaning the cache of individual applications
The largest amount of data on a Redmi 7 smartphone is typically generated by instant messengers, social networks, and video hosting apps that save media files so that you don’t spend Internet traffic on re-viewing, but they rarely delete that data on their own, which inflates it to tens of gigabytes.
To manually clear the cache of a particular application, go to the Settings menu. Next, select the App item and then All Apps. In the list that opens, find the desired program, such as YouTube or VKontakte. Click on it to open the control page.
You'll see the Storage or Memory button on the app information screen, and if you click on it, you'll be taken to the data management menu, and there'll be two main buttons: Clear cache and Clear everything (or Erase data), and we're interested in the first option, Clear cache.
| Type of data | What's removed | Impact on the account | Recommended frequency |
|---|---|---|---|
| Cash. | Temporary files, pictures, thumbnails | It doesn't affect the entrance. | Every 1-2 weeks |
| Application data | Settings, logins, saved messages | Full logout from the account | Only when it fails. |
| Cookies | Data on sites visited | May require re-entry on the sites | Once a month |
| History | List of viewed content | Doesn't affect work. | If you wish, |
Be very careful not to confuse the cache clearing button with the data clearing button. The second option will return the application to the post-installing state by removing all your settings and authorizations. This can be useful for problem programs, but is not required for routine maintenance.
Why can’t Telegram cache be cleaned through Android settings?
Using Developer Mode for Deep Cleaning
Android has a hidden menu for developers that provides access to advanced system management features, one of which is to cache running processes and temporary system files, which is useful if standard methods do not produce the desired result.
To activate the developer menu, go to About Phone in Settings. Find the line "Version" MIUI» And press it fast. 7-10 The system will notify you that you have become a developer, and then a new option will appear in the main settings menu Additional (or "Advanced Settings"), where the desired menu is hidden.
Inside the developer menu, scroll down to the Apps section, where you'll find the "Do Not Activity" option or the option to limit background processes. However, to clear the cache, we're interested in the memory item. Some versions of MIUI have direct cleaning, others require the use of commands.
A more effective method in this section is to use the "Run" function or adb commands if the computer is connected. But for a user without a PC, there is a trick: in the developer menu, find "Reset Bluetooth settings" or similar system resets, which sometimes clear the associated system buffers. However, the most effective way is to clean through Recovery Mode, described below.
⚠️ Attention: The developer menu contains critical settings. Don't change the settings you're not sure about, especially those related to window animation, debugging, and other things. USB Or the processor's work, which can lead to system instability.
Cleaning the system cache through Recovery Mode
The deepest level of cleanup available without a superuser (Root) is Recovery Mode, which loads a minimal version of the operating system that allows you to perform memory partition maintenance without running the basic Android services, ensuring that no file is occupied by the system at the time of cleaning.
To get into Recovery mode on Redmi 7, turn off the smartphone 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, but keep the volume down. In a few seconds, the main recovery menu will open.
Navigation in this menu is done with volume buttons (up-down), and the choice is confirmed by the power button. Find Wipe Data. Inside this menu, select the Wipe Cache option. The system will warn you that temporary files will be deleted. Confirm the action.
The sequence of actions in Recovery:
1. Turn off the phone.
2. Clutch Volume Up + Nutrition.
3. Select Wipe Data.
4. Select Wipe Cache.
5. Confirm and wait for the end.
6. Select Reboot.It is important not to confuse this option with Wipe All Data, which performs a full factory reset with all your photos and contacts deleted. Wipe Cache is secure for personal data. Once the process is complete, select Reboot to reboot your phone. The first run can take longer than usual - that's OK, the system reassembles the cache again.
💡
If after logging into the Recovery menu in Chinese, try switching to English in the top right corner (if available) or using an interpreter from another phone's screen. MIUI menu immediately in English.
Automation and third-party cleaning utilities
If manual cleaning seems too time-consuming, you can use specialized applications from the Google Play store, but be selective: many "cliners" themselves are a source of advertising and unnecessary battery load.
One effective tool is Files by Google, which is the official app from the search giant that can find duplicate files, delete screenshots and clean the cache of junk apps, and it runs in the background and makes recommendations when the phone runs out of space.
Another powerful tool is SD Maid. Unlike many other tools, it doesn't just delete files from a template, it analyzes the file system for the "remnants" of remote applications. For Redmi 7, with its limited memory, it can be a salvation, allowing you to win several hundred megabytes of free space.
- 📱 Files by Google – the best choice for basic cleaning and file management without ads.
- 🧹 SD Maid – a professional tool for deep search of residual files.
- 🚀 CCleaner is a popular classic, but requires caution with notification settings.
- 🛡️ Avast Cleanup combines antivirus and memory optimization functions.
When using third-party software, make sure to give them only the necessary permissions. Don't give access to contacts or a microphone if the application is declared as a memory cleaner. Regularity is more important than intensity: it's better to clean the phone once a week a little bit than wait for the disk to fill up completely.
💡
The most effective cleaning method is a combination of weekly standard cleaning through “Security” and monthly manual cleaning of the cache of heavy applications (social networks, instant messengers).