Xiaomi Redmi 7 smartphones remain popular due to their reliability, but over time users often face a slowdown, a natural process involving the accumulation of temporary files, residual application data and system debris. Cache cleaning is the first step you need to perform to restore the performance of the device.
Many owners mistakenly believe that to solve the problem, you need to delete photos or remove apps. In fact, Android stores a huge amount of temporary information that takes up precious space in memory. In this article, we will detail the safe cleaning methods that will help your Xiaomi Redmi 7 work again as new.
We’ll look at the standard MIUI shell, deep cleaning through the developer menu, and the manual way to remove files from system folders. It’s important to understand that regular memory maintenance prolongs the life of a smartphone and prevents critical errors in the program.
What is cache and why it should be removed
Cache is a memory area where apps save temporary data for faster loading the next time they run, such as a browser that stores copies of pages visited, and social networks that store thumbnails of images from news feeds, which speeds up work, but over time, the amount of such data can reach several gigabytes.
The problem is that old cache files often conflict with newer versions of apps or contain bugs. Not only does the system debris take up space, it can cause malfunctions in the operating system. If your Xiaomi Redmi 7 starts to slow down or heat up, it is likely that the cause lies in the crowded cache.
⚠️ Warning: Do not confuse cache cleaning with application data deletion. When you clear the cache, your logins, correspondence and settings are saved, only temporary files are deleted.
Regular cleaning is especially important for models with a small amount of internal memory, which includes Redmi 7. the release of even 500 megabytes can significantly affect the response speed of the interface.
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Cache is a temporary file to speed up work, their removal is safe and does not affect the personal data of the user.
Use of the built-in "Security" application
The easiest and safest way to clean up Xiaomi’s memory is to use a pre-installed utility.The MIUI shell has a powerful built-in tool that automatically scans the system for debris. You don’t need to install third-party programs, which often become a source of advertising themselves.
To get started, look for an icon on your desktop called "Security" (green shield). Launch the app and press the Clean button. The system will analyze and suggest that you delete the files you find, which is ideal for everyday use and requires no special knowledge.
☑️ Checking before cleaning
It's important to note that the built-in cleaner works quite conservatively, it only deletes files that the system doesn't exactly need. Auto-cleanup may not affect the cache of some heavy games or messengers, so manual intervention is sometimes required.
- 📱 Click on the Security app icon on the home screen.
- 🧹 Wait for the automatic scanning of the system to be completed.
- ✅ Press the large green button to remove the debris found.
- 🔄 Repeat the procedure regularly to maintain productivity.
Once the procedure is complete, you will see a message about the vacated seat. Xiaomi Redmi 7 may require a reboot to apply the changes, although most often the system works stably immediately.
Deep cleaning through application settings
If a standard cleanup doesn't work, you need to move to more detailed memory management, and some apps, like YouTube, Telegram, or TikTok, accumulate huge amounts of cache that the regular cleaner can ignore, and you need to go to the individual settings of each application.
Go to the Settings menu, then select the App and click All Apps. In the list that opens, find the program you want. Inside the app menu, you will see the Clean button (or broom icon), and by clicking on it, you can select the Clear Cache option without touching the acc data.
What to do if the cleaning button is inactive?
On WhatsApp or Viber, the cache can take up several gigabytes because of the media files viewed but not saved to the gallery. Regularly checking these sections on Xiaomi Redmi 7 helps keep the system on track.
- 📂 Open the smartphone settings and go to the application section.
- 🔍 Find in the list of "heavy" application (social networks, browsers).
- ⚙️ Select "Memory" or click on the cleaning icon.
- 💾 Click "Clear Cache" by confirming the action.
This method allows you to free up much more space than an automatic scanner, but it takes longer because you have to check each application separately, and for Xiaomi, this is the most effective way to combat memory shortages.
Cleaning the system cache through the Recovery menu
There's a more advanced way to clear the system partition that's not accessible to normal tools, called Recovery Mode, which is useful when the phone is unstable, freezes, or after a system upgrade, and Redmi 7 uses a keyboard to enter this mode.
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, but keep the volume up until the Recovery menu appears. The navigation is done with the volume buttons, and the choice is with the power button.
Wipe Data → Wipe Cache (NOT Wipe All Data!)From the menu, select Wipe Data, then search for Wipe Cache. Be very careful: do not choose Wipe All Data if you want to save your photos and contacts. This operation will only delete the system cache without affecting user files.
⚠️ Warning: Entering Recovery requires accuracy. If you mix the buttons and choose a full reset, all data will be permanently lost.
Once cleaned, the system will suggest restarting, which can take longer than usual to run, as Android will reassemble the necessary temporary files, a method that is recommended for advanced users or if there are serious software problems.
- 📴 Turn off your smartphone and press the volume up. + Nutrition.
- 📟 In the Recovery menu, select the language (if required) and the Wipe Data option.
- 🗑️ Select Wipe Cache and confirm the action with the power button.
- 🔄 Wait for the process to end and select Reboot.
Manually delete temporary files through Explorer
For those who prefer full control of the file system, there is a manual cleaning method, built into Xiaomi Explorer allows you to see hidden folders where garbage from remote applications is stored, which is the most time-consuming, but also the most thorough way.
Open Explorer and enable hidden files in your settings. You are interested in folders with the names.thumbnails (cache of thumbnails gallery), MIUI (folder debug_log) and Android/data (Remnants of deleted games..thumbnails folder size on Redmi 7 can reach 2-3 GB.
Deleting the contents of the.thumbnails folder is safe, the system will recreate it, but you only need to do this if you run out of space, because once cleaned, the gallery will run slower the first time you see a photo, which is a classic trade-off between free space and speed.
| folder | Location. | What it keeps. | Can be removed |
|---|---|---|---|
| DCIM/.thumbnails | Internal memory. | Miniatures photo | Yeah (safe) |
| MIUI/debug_log | Internal memory. | Logs of error | Yeah (safe) |
| Android/obb | Internal memory. | Cash games. | Only if the game is deleted. |
| Download | Internal memory. | Downloads. | Manually (check files) |
Using the manual method, you can find forgotten APK installation files or old backups. Xiaomi Redmi 7 often saves duplicates in different directories, and manual search helps to identify such anomalies.
Automation of the process and useful tips
So you can set up automation to not do manual cleaning every day, and the Security app has a Schedule feature, and you can set your smartphone up so that it automatically cleans the trash every night while you sleep, so you don't have to constantly monitor your memory.
And you also need to look at the settings of the apps themselves, and on Telegram, for example, you can install automatic cache cleaning in 3 days or a week, and that will prevent the proliferation of garbage in the future, and prevention is always more effective than treatment.
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Turn on the “Auto-Delete Media” function in the Telegram settings so that the app cleans the cache every 3 days.
Remember, Redmi 7 is a device with certain hardware limitations, and installing too many heavy applications at the same time can nullify all cleanup efforts, and keep at least 15-20% of your total storage free.
- 📅 Set up automatic cleaning in the Security app.
- ⚙️ Check the cache settings in heavy apps (Telegram, Instagram).
- 🚫 Remove unused applications immediately after use.
- 💡 Periodically reboot the smartphone to reset RAM.
Compliance with these simple rules will allow your Xiaomi to last long and run fast. Technology is not standing still, but the basic principles of electronics care remain the same. Regularity is the key to success.