Xiaomi Redmi 7 even a few years after the release remains popular due to balanced characteristics and support for updates MIUI. However, over time, many users experience slowdowns, hang-ups and memory shortages, the main reason being clogged cache that takes up gigabytes of space and slows down the system. In this article, we will discuss what cache is, why it should be cleaned, and what temporary files can be safely deleted on Redmi 7 without the risk of losing important data.
Unlike the new models, Xiaomi, where MIUI Automatically optimize memory on Redmi 7 (Especially with the Android version 9 Pie) cache builds up more aggressively, and that's because of the Snapdragon processor architecture. 632 limited 32/64 GB of internal memory. Cache cleaning isn't just a recommendation, it's a necessity for stable operation.
What is cache and why should it be cleaned on Redmi 7?
Cache is a temporary file that creates applications and a system to speed up re-operations, for example, when you open Instagram, the app saves thumbnails of photos so that it can upload them faster the next time you run them, and the problem is that over time, these files:
- π They're up. 5-7 GB of memory (on Redmi) 7 s 32 GB is critical).
- π’ Slow down work β the system spends resources on processing outdated data.
- π Can conflict with new versions of applications, causing errors.
On Redmi 7, the cache is divided into three types:
- System cache - files MIUI Android (for example, the location of icons on the desktop).
- App cache β temporary data of each installed software (from WhatsApp to games).
- Dalvik cache β optimized files to speed up the launch of programs (relevant to older versions of Android).
It's important to understand that not all cache can be deleted without consequences, for example, cleaning a Dalvik cache through Recovery will lead to the first system reboot longer than usual, but will not harm the data, while deleting the cache of Google Play Services can cause login problems in the account.
Preparing for cleaning: what to do before removing the cache
Before you start cleaning, follow a few steps to avoid data loss or failure:
Backup important files (photos, contacts)
Check the battery charge (minimum 30%)
Close all working applications
Make sure that there is enough free space on your phone (at least 500MB)
Turn off automatic app updates in the Play Market-->
You'll pay special attention to backup. On Redmi 7, you'll have to do this.
- Go to Settings β System and Device β Backup.
- Select Local Backup and tick the necessary data (contacts, SMS, wifi settings).
- Click Create a backup and wait until it is completed (the file will be saved in the MIUI/backup/AllBackup folder).
If you plan to clear the cache through Recovery, note: this method will reset some settings (for example, wallpaper and screen brightness). 5-10 minutes, that's normal.
β οΈ Warning: Do not clear the cache if the phone is less than 20% dead.If suddenly shut down during the process, the file system may damage and Redmi 7 will stop booting.
Method 1: Clearing the cache of individual applications through settings
The safest method is to remove the cache for specific programs, which does not affect system files and does not require rebooting.
- Open Settings β Applications β Application Management.
- Select an app (such as Facebook or YouTube).
- Press Warehouse. β Clear the cache.
To speed up the process, you can sort applications by cache size:
- π In the Application Management section, tap on three dots in the upper right corner.
- π Select Sort by Size β Cash.
- ποΈ Clear cache for apps that are over 100MB long (like Google Chrome or TikTok).
Redmi 7 has a lot of cash on it:
| Annex | Typical cache size | Can you clean it without consequences? |
|---|---|---|
| Google Play Services | 200-500 MB | Yes, but you may need to re-authorize some services. |
| 100-300 MB | Yes (not affecting chats and media files) | |
| MIUI Launcher | 50β150 MB | Yes, but after cleaning, widgets can be dropped. |
| Galaxy Store (if installed) | 10β50 MB | It is better not to clean - the store may be disrupted by |
β οΈ Warning: Don't confuse Clear cache and Clear data! The second option will delete all application settings (e.g. logins and saved games) PUBG Mobile).
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If the app is slower after cleaning the cache, restart it. The system will create new temporary files optimized for the current version of the software.
Method 2: Automatic cleaning through built-in optimization MIUI
MIUI Redmi 7 has a built-in garbage cleaner tool called Security (formerly called Optimizer) that removes not only cache, but also residual files, duplicate photos and unnecessary ones. APK. How to use it:
- Open the Security app (the shield icon).
- Press Cleaning β Deep Cleaning.
- Select categories to scan (e.g., App Cache and Residual Files).
- Slip Clean and confirm the action.
Advantages of this method:
- π€ Automatic analysis β the system finds unnecessary files.
- π‘οΈ Security β Critical data is not affected.
- π Statistics show how much space is available.
However, the Security has limitations:
- Does not clear the cache of system applications (for example, MIUI Camera).
- Can skip files from applications with administrator rights.
- Does not delete Dalvik cache (recovery required).
For maximum efficiency, combine this method with manual cleaning (Method 1).
- Go to Security. β Cleanup β Settings (cog in the corner).
- Turn on the autoclean option when you lock the screen.
- Choose which file types to clean automatically.
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Built-in optimization MIUI β The easiest way to do this is to clean up your cache completely, but it doesnβt replace the full recovery cache, especially if the phone is slowing down.
Method 3: Clearing the cache with Recovery Mode (for power users)
If Redmi 7 is too slow or there are errors when you start applications, cleaning the cache through Recovery will help.This method deletes all temporary files of the system, including Dalvik cache, but does not affect user data (photos, music, messages).
Instructions:
- Turn off the phone.
- Press the Power button + Volume up at the same time and hold for 10-15 seconds until the Mi logo appears.
- Release the buttons β you will be taken to the Recovery menu (management is carried out by the volume and power buttons).
- Choose a language (e.g. English).
- Go to Wipe & Reset β Wipe Cache.
- Confirm the action and wait for the completion (it will take 1-3 minutes).
- Choose Reboot. β Reboot to System.
What happens in this case:
- π§Ή Cache of all applications and systems is removed.
- π Dalvik cache is reassembled (the first download will be longer).
- π± Some settings are being reset. MIUI (wallpaper, brightness, sound profiles).
β οΈ Warning: If after cleaning the cache through Recovery, the phone has been stuck on the Redmi logo for longer than 15 minutes, don't panic. This is normal for the first download. If the screen doesn't respond for more than 30 minutes, try re-entering Recovery and selecting Reboot.
This method is especially useful if:
- π The phone became unbearably slow even after manual cleaning.
- π Applications spontaneously close or issue errors.
- π± After updating MIUI There's a graphical glitch.
What happens if Recovery does not open?
Method 4: Using third-party applications to clean up the cache
If embedded tools MIUI They can't do it, you can use third-party utilities. Redmi 7 works well:
- π§° SD Maid β Deep Cleanup, including system files (requires root rights for full functionality).
- ποΈ CCleaner β simple interface, removes cache and residual files.
- π¦ Files by Google β Shows Large Cache Files and Suggests Deletion.
Example of working with SD Maid:
- Install the app from Google Play.
- Launch and provide access to the storage.
- Go to CorpseFinder (search for residual files) or AppCleaner (clear cache).
- Select files to delete and confirm.
Warnings when using third-party cleaners:
- π« Some applications (such as Clean Master) may install advertising software.
- π Root-access utilities can disrupt the work MIUI, if critical files are deleted.
- π± After cleaning the cache of system applications (for example, MIUI Home) can be reset desktop settings.
If you decide to use SD Maid or analogues, follow the rules:
- π Before deleting, check which files are proposed to be cleaned.
- π Do not delete files with.odex or.apk extensions β these are components of the system.
- π After cleaning, restart the phone.
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Before using third-party cleaners, create a recovery point in the TWRP (If it's installed, it'll help roll back changes if something goes wrong.
Method 5: Cleaning the cache through ADB (for advanced users)
If you are familiar with the command line, you can clear the cache through ADB (Android Debug Bridge: This method is useful when the phone doesnβt respond to touch or you need to clear the cache of system applications that are not available through normal settings.
Instructions:
- Install ADB and Fastboot on your computer.
- Turn on the debugging. USB Redmi 7: Go to Settings β About the phone, tap 7 times on the version. MIUI, To activate Developer Mode. Go back to Settings. β Additionally. β For developers, turn on the debugging. USB.
Connect your phone to your PC and confirm your trust in your computer.
Open the command prompt (Windows) or terminal (macOS/Linux) in the folder with ADB.
adb shell pm trim-caches 1000000000(where 1000,000,000 is the size in bytes, here β1GB).
com.android.chrome
adb shell pm clear com.android.chromeAdvantages of the method:
- π₯οΈ It works even if the phone screen does not respond to touch.
- π§ Allows you to clear the cache of system applications that are not available in the regular menu.
- π You can automate the process through scripts.
Risks:
- π¨ The wrong command can delete application data (not just cache).
- π Requires PC connectivity and command line skills.
Example of useful commands for Redmi 7:
| Team team. | Action. |
|---|---|
| adb shell pm list packages -f | Shows a list of all installed applications with paths to their cache |
| adb shell df -h | Displays occupied and free space on all sections |
| adb shell rm -rf /data/dalvik-cache/* | Clears Dalvik cache (similar to the command in Recovery) |
β οΈ Note: Adb shell pm clear command deletes not only the cache, but also all application data (settings, logins, saves.
Frequent Cache Cleaning Mistakes and How to Avoid Them
Many Redmi 7 users face problems after improper cache cleaning.
1.The phone has become even slower.
Reason: Dalvik cache files are deleted and the system needs time to reassemble them.
- π Solution: Restart your phone and wait 10-15 minutes for the speed to return.
- π± If the brakes are left, check the free space (should be at least 1 GB).
2. Applications are constantly restarted
Reason: Cache of system services (e.g. Google Play Services) has been cleared.
- π§ Solution: Go to Settings β Annexes β Google Play Services β Warehouse β Clear the cache and restart the phone.
- π If it doesnβt help, uninstall the updates for Google Play Services (three-dot button in the corner).
3. The wallpaper or desktop settings have disappeared
Reason: Cache cleared MIUI Launcher.
- π¨ Solution: Go to Settings β Wallpaper and select new wallpaper.
- π± Widgets will have to be added again.
4.Authorization in Xiaomi account does not work
Reason: Mi Account or Google Services Framework data is deleted.
- π Solution: Go to Settings β Accounts. β Xiaomi and come back in.
- π± If it doesnβt help, clear the cache for com.xiaomi.account through ADB.
5.After cleaning the cache through Recovery, the phone does not turn on
Reason: The cleaning process is interrupted or the file system is damaged.
- π Solution: Try to go to Recovery and select Reboot.
- π± If it doesnβt work, run your phone through the Mi Flash Tool (youβll need an unlocked bootloader).
To avoid mistakes, follow the rules:
- π Never clear the cache of apps whose names contain Android, Google, or miui unless you are sure of the consequences.
- π Do not interrupt the cleaning process (especially through recovery or recovery). ADB).
- π± After mass cleaning of the cache, restart the phone.