The Xiaomi Redmi Note 7, released in 2019, is still a popular budget smartphone due to the balance of performance and price. However, over time, even 3 or 4 GB of RAM begins to get clogged with background processes, cache and unoptimized applications. If your Redmi Note 7 began to slow down, hang or spontaneously close programs, the problem is precisely the lack of RAM.
In this article, we will discuss 10 Proven ways to free RAM: from basic settings MIUI It's all about hidden functions and manual optimization, no rooting or complicated manipulation, just working methods adapted to the Redmi Note. 7 with its hardware features (Snapdragon processor) 660, version MIUI 12/13/14).
Important: some tips require careful implementation so as not to disturb the stability of the system, for example, disabling system processes through the use of a system system. ADB This may cause disruptions β we will warn you of the risks in advance.
1.Diagnostics: how to check the RAM load on the Redmi Note 7
Before you clean up your memory, you need to understand what it is that's taking up. Redmi Note 7 has built-in monitoring tools:
- Quick view: swipe down from the top edge of the screen to open the notification bar.click on the icon βοΈ Settings β Memory (or Clear if the button is active) will show the current RAM load and a list of the most voracious applications.
- Advanced statistics: go to Settings β The phone. β Status of the system β Memory. Here you'll see a graph of how RAM has been used in recent years. 3/6/12 hours, as well as division into system processes, applications and cache.
Pay attention to two key indicators:
- π Free memory: if less than 500-700 MB β the smartphone will start to slow downΒ».
- π Cleaning frequency: if RAM is clogged 10-15 minutes after manual cleaning β a problem in the background activity of applications.
On the Redmi Note 7 with MIUI 12+ There's a hidden function of detailed process analysis to activate it:
- Open the Settings. β Special facilities β Menu for developers (if not, tap 7 times according to the version) MIUI in the section About the telephone).
- Enable the debugging option USB Do not turn off the screen during charging.
- Connect your phone to your PC, install Android Studio, and run Android Profiler. Here you will see a complete list of processes indicating RAM consumption and CPU.
β οΈ Note: If you see unknown services with names like com.android.XXX or system_ui, consuming >100 MB of RAM could be a sign of a virus. Check your phone through Clean Master or Avast.
2. Standard methods of cleaning RAM in MIUI
MIUI It has built-in memory management tools, but they often work inefficiently due to Xiaomi's aggressive optimization.
Manual cleaning through the notification panel
The fastest method:
- Swipe down from the top edge of the screen to open the notification bar.
- Slap the icon. π§Ή Clean (or Memory: XX% used).
- Confirm the action by clicking Clear XX MB.
This method closes all background applications, but does not remove cache or optimize system processes.
Autocleaning in the security settings
MIUI It has an automatic cleaning function that can be configured:
- Go to Settings. β Annexes β Security β Cleanup.
- Activate the Autoclean switch.
- Press Settings and select: π Frequency: Every hour (optimum for Redmi Note 7). ποΈ Data Types: Mark Cash, Residual Files and Background Processes. π΄ Exceptions: Add messengers (WhatsApp, Telegram) to the list so that they do not close.
β οΈ Warning: Donβt turn on auto-clean for notification apps (like Viber or Mail) and they wonβt show new messages until you open them.
Optimization through βBattery and Performanceβ
V MIUI There is a hidden partition that limits background activity:
- Open Settings β Battery and Performance β Battery Management
- Select Mode Selection and activate Balance (or Performance if you need more power).
- Scroll down and tap the settings. β Background restriction.
- Include a restriction for all applications, except messengers and navigators (Google Maps, Yandex.Maps).
Clearing the cache of individual applications
If an application is eating up memory, clean its cache manually:
- Go to Settings β Applications β Application Management.
- Select a problem app (like Instagram or TikTok).
- Slip the vault. β Clear the cache.
- (Optional) Click Clear Data, but it will delete all settings and inputs!
Example: Facebook, after a month of use, can accumulate up to 500MB of cache, and cleaning it will free up RAM and speed up work.
Removal of system debris through Safe Mode
If your smartphone is slowing down, try safe mode:
- Turn off the phone.
- Press the Power button and when the Redmi logo appears, hold Volume down until Safe Mode boots.
- This mode only runs system applications, and check if the memory is being consumed.
- If so, it's a problem with user programs. Delete the recently installed ones.
How to exit Safe Mode: Just reboot your phone.
3.3.Use of the file manager to search for large files
V MIUI There is a built-in conductor with storage analysis:
- Open the files. β Analysis of the vault.
- Wait for the scan to be completed (it may take 1-2 minutes).
- Sort files by size and remove unnecessary ones (such as old ones). APK, duplicate).
Notice the folders:
- π /storage/emulated/0/Android/data β Application data is stored here (you can manually clean it).
- π /storage/emulated/0/DCIM/.thumbnails β Photo miniatures (can be removed without consequences).
βοΈ Cache cleanup checklist
4. Optimization of background processes
The main reason for the brakes on the Redmi Note 7 is the background activity of applications, and even closed programs can consume RAM through services, notifications or synchronization, and let's see how to fix this.
Disable Auto-Run Applications
Many programs run automatically when you turn on your phone or connect to the Internet, to prevent this:
- Go to Settings β Applications β Application Management.
- Select an app (such as AliExpress or Wildberries).
- Slip Autostart and turn off the switch.
- Repeat for all unnecessary programs.
Example: disabling Avito auto-start and Ozone frees up to 200-300 MB of RAM.
4.2. background restriction through ADB (skilled)
If standard methods do not help, you can forcibly limit background activity through ADB:
- Install Platform Tools on your PC.
- Connect the Redmi Note 7 to USB and turn on the debugging. USB.
- Open the command line in the adb folder and type: adb shell cmd appops set <package> RUN_ANY_IN_BACKGROUND deny For example, for Facebook: adb shell cmd appops set com.facebook.katana RUN_ANY_IN_BACKGROUND deny
This will completely block the appβs background work, but may disrupt notifications.
β οΈ Warning: Do not apply this command to system processes (e.g. com.miui.home or com.android.systemui) and this will cause a failure. MIUI!
4.3 Using Greenify to "freeze" applications
Greenify is a utility that forcibly sends applications to sleep mode, preventing them from consuming RAM.
- Install Greenify from Google Play.
- Launch and grant rights Special access (in settings) MIUI It's the settings. β Annexes β Special access β Optimizing the battery).
- Add to the list of βfreezedβ applications (for example, games, social networks).
- Activate the option Aggressive mode (requires root or ADB).
Effect: Apps wonβt hang in the background, but will keep notifications.
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If after the background restriction, notifications from the VK or Telegram, add them to the exceptions in the Battery settings and performance β Battery management
5.Tune in. MIUI scaling
MIUI It has hidden features that can be configured to reduce memory consumption, and these methods don't require root, but they require precision.
5.1. Disable animation and visual effects
Animations and transitions consume up to 100-150 MB of RAM. To turn them off:
- Activate the Developer Menu (7 taps according to version) MIUI).
- Go to Settings. β Special facilities β Menu for developers.
- Find sections: The scale of window animation β No animation. Scale of transition animation. β No animation, duration of animation. β Off..
The effect: the smartphone will work faster, but the interface will become less smooth.
5.2. Transition to a lightweight theme of registration
Topics MIUI with complex visual effects (e.g., Dark Mode Pro or 3D Effects) consume extra memory to save RAM:
- Open the settings β Screen β Themes.
- Choose a standard Default or Light theme.
- Turn off animation when blocking and transition effects.
Where to Download: All Lite versions are available on Google Play or APKPure.
Reset to factory settings (last chance)
If nothing works, do a hard reset, which will delete all the data, but return the smartphone to a "clean" state:
- Back up important data (Settings β About Phone β Backup).
- Go to Settings β About the phone β Reset settings.
- Choose to erase all data and confirm.
- After restarting, set your phone as new.
On the Redmi Note 7, up to 60-70% of the total RAM is available after reset (for example, 2.1-2.5 GB of 3 GB).
β οΈ Warning: Do not reset if you have Mi Account binding enabled to your device. After reset, you will need to enter the password from your Xiaomi account, otherwise the phone will be locked!
Use of third-party boosters (with caution)
Applications such as CCleaner or DU Speed Booster promises to "free up memory," but often does more harm than it helps:
- π Choose only proven utilities (e.g. Clean Master).
- π« Donβt give them the device administrator rights.
- βοΈ Turn off Auto Cleanup β it can shut down the required processes.
It is better to use boosters once a week, rather than constantly.
List of dangerous boosters that can damage the system
7. Hardware Limitations: Why the Redmi Note 7 Brakes Even After Cleaning
If you have tried all the methods, but the smartphone still slows down, the problem may be in the hardware limitations:
- π Battery wear: With a capacity below 70%, the Snapdragon 660 processor begins trottling (decreased performance), which increases the load on RAM.
- π₯ Overheating: if the processor temperature exceeds 60Β°C, the system artificially restricts background processes, but this leads to lags.
- π οΈ Damaged memory: on the Redmi Note 7, there is sometimes a defect in the eMMC drive, due to which the RAM is unstable.
How to check:
- Battery: Install AccuBattery and check the battery status.
- Temperature: Use it CPU-Z heat-monitoring.
- Memory: Run the test through A1 SD If reading speeds are below 150MB/s, it may be a problem with the hardware.
If the diagnosis showed hardware problems, contact the service center.Xiaomi officially supports the repair of the Redmi Note 7 until 2026.
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If after all the manipulations of free memory less than 300 MB, the problem is most likely in the hardware (memory, processor or battery).