Xiaomi Redmi Note 7, despite its age, remains a popular device, but over time users begin to notice a decrease in performance. Often the cause of “brakes” and lack of space is the accumulated cache of applications and system services. These are temporary files that speed up the launch of programs, but with prolonged use take up gigabytes of usable space.
Cleaning up that data correctly can do wonders: the interface becomes more responsive, games stop flying, and space for new photos is freed up by itself. But it's important to understand the difference between useful time data and digital garbage that only loads the drive. In this article, we'll explore safe cleanup methods that don't require root rights.
The cleaning procedure does not require deep knowledge in programming or installing third-party software. The built-in tools of the MIUI shell allow you to effectively manage memory, the main thing is to act consistently so as not to delete important logins or settings of your favorite services, while maintaining the functionality of the system.
What is cache and why you need to clean it
Cache is a buffer memory that stores copies of frequently used data. When you open a website in a browser or browse through a social network, Redmi Note 7 stores images and scripts locally. This allows pages to load instantly on repeated visits without consuming Internet traffic. However, over time, these files can grow to inadequate values.
The problem arises when corrupted fragments or data from already deleted applications accumulate in the cache. This leads to conflicts in the Android operating system. The smartphone starts to work slower, and some programs may simply stop running, giving out errors. Regular cleaning of the cache helps to eliminate software failures.
It's worth noting that there are different types of cached data, there's a system cache that you don't need to touch, and there's a cache of custom applications, and the second type of cache that most often requires user intervention, and understanding this difference will save you from accidentally deleting critical files in the system.
⚠️ Cache cleaning does not delete your personal photos, contacts or correspondence. This is a technical procedure that affects only temporary files that can be recreated.
Cleaning the cache through the standard Security app
The MIUI shell on the Redmi Note 7 already has a powerful maintenance tool built in, called Security, and it has a green shield icon, and it's the easiest and safest way to remove debris without risking system integrity. It automatically scans the device for temporary files.
To get started, run the program and select Clean up, and the system will analyze and show you the amount of files that can be deleted without consequences, usually including the remnants of installation packages, browser cache and temporary ad files, pressing the cleanup button will take only a few seconds.
In addition to basic cleaning, this section includes Deep Cleaning, which allows you to analyze memory in more detail, finding large files, duplicate photos and rarely used applications, and using this tool helps keep RAM in a discharged state.
☑️ Checklist for quick cleaning
Removing the cache of specific applications manually
Sometimes the problem isn't with the system as a whole, but with a particular application, like YouTube or Instagram, which consumes a lot of traffic and space, and in these cases, it's more effective to manually clean the data of a particular program through the settings of your smartphone, which gives you complete control over the process.
To do this, go to the Settings menu, then select the Apps section and click All Apps. In the list that opens, find the program you want. Inside the app menu, you are interested in the Memory or Storage items where the data management buttons are located.
Here you will see two main options: Clear Cache and Clear Everything (or Reset); the first button deletes only temporary files, saving your logins and settings; the second button completely resets the application to just out of the store, removing all authorizations. Be careful when choosing.
| Action. | What's removed | Whether logins are retained | Risk of data loss |
|---|---|---|---|
| Clear the cache | Temporary files, thumbnails | Yes. | No. |
| Clear it all up. | All data, settings, accounts | No. | High-pitched |
| Delete the appendix | The program and all its data | No. | Maximum |
| Stop it. | Nothing (just the process) | Yes. | No. |
Why is the cache growing so fast?
Cleaning the cache through Recovery mode
If the smartphone is unstable and does not load normally, you can use Recovery mode. This method allows you to clear the system cache, which is not available through normal settings. This is useful after a firmware update or with frequent freezes of the Redmi Note 7.
To enter this mode, you need to turn off the phone 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, but keep the volume up until the recovery menu appears.
In the menu, you can navigate with volume buttons (up-down), and the choice is confirmed by the power button. Find Wipe Data or Clean, then select Wipe Cache. Confirm action. Once completed, select Reboot to restart the system.
⚠️ Warning: In Recovery mode, it’s easy to confuse menu items. Make sure you choose “Wipe Cache” over “Wipe All Data” or the phone will reset to factory settings with all files lost.
Cleaning the browser cache and messengers
Browsers and instant messengers are the leaders in memory consumption. Google Chrome, Yandex or the built-in Mi Browser store thousands of web page elements. Similar behaviors are Telegram and Viber, storing media files in cache.
In Chrome, click three dots in the corner, select History, then Clear History. Make sure the tick is next to Images and other files saved in cache. You can select All the time for maximum efficiency.
The Telegram messenger is more interesting: it has a built-in autodelete function. Go to Settings → Data and memory → Memory Use. You can set a period after which media files will be deleted automatically, or click the “Clear Cache” button manually right now.
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Telegram can set up automatic cache cleaning so that it never takes more than 1-2 GB. This will eliminate the need to do it manually in the future.
Frequent mistakes and useful recommendations
Many users make the mistake of installing dubious apps from the Play Market. On the Xiaomi Redmi Note 7, this is not necessary, since the system itself perfectly manages memory. Third-party programs often only consume the battery while working in the background and show intrusive advertising.
Another common mistake is to keep the cache cleaned completely once it's been stored, and the cache is for speed, and if you've just cleaned your browser, the sites will load a little slower on the first run until the cache is re-formed, and do it as needed, not for the sake of the process.
It's also worth keeping an eye on the folder. MIUI Sometimes the logs of remote games or applications remain there, and periodic checks of the file manager help you find forgotten downloads and installations. APK-files that also take up space.
⚠️ Warning: Do not use Memory Acceleration features that force all background processes to close.This causes the Redmi Note 7 processor to restart applications, which consumes more battery power than if they were just hanging in the background.
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The most effective way to maintain performance is to combine a regular cleaning through “Security” and manually manage the cache of heavy applications once a month.