Smartphones of the line Redmi from the company Xiaomi are deservedly popular due to their excellent price-performance ratio. However, the model Redmi 9released in 2020 may eventually begin to have difficulty multitasking. This is due to the peculiarities of the shell MIUI, which actively uses resources for background processes, and the natural wear and tear of the software.
When the device starts to slow down when switching between applications or takes a long time to load heavy games, the first thing you should think about is the state RAM. Freeing up RAM is not just about deleting temporary files, but a comprehensive approach to managing system resources. In this article, we will look in detail at how to effectively clear the memory on your gadget without losing important data.
Many users mistakenly believe that regularly closing all applications through the multitasking menu solves the problem. In fact, the system Android is designed in such a way that free memory is wasted memory. However, in the case of Redmi 9having a limited amount of RAM in basic versions, competent manual optimization can really breathe a second life into the device.
Built-in MIUI optimization tools
Shell MIUI provides users with a powerful built-in tool for system management, which is often ignored in favor of third-party solutions. The Security app is the central hub for quick cleaning. It analyzes running processes and offers to terminate those that consume the most resources.
To start the procedure, you need to find a green shield icon on the desktop. Inside the application, select the item Storage & Performance or press the big button Accelerate. The system will automatically shut down background processes that are not critical to the operation of the phone. This action instantly frees up several hundred megabytes.
⚠️ Attention: Do not abuse the “Accelerate” function every 5 minutes. Constant forced unloading of applications from memory forces the processor to spend more energy on restarting them, which reduces battery life.
In addition to simple cleaning, the application blocking function is available in the same menu. If you add frequently used apps to the exclusion list (lock), the system will not close them during automatic optimization. This is useful for instant messengers, but can be harmful if you want to free up as many resources as possible for gaming.
Use the Memory Cleanup widget on the home screen for quick access to the acceleration function without having to go deep into the settings menu.
Manual control of applications and autorun
A deeper level of control is customization autostart. Many apps register themselves in the start-up so that they launch immediately after turning on the phone, even if you do not use them. This creates a load on RAM from the first seconds of operation of the device.
To disable the unnecessary, go to the phone settings, find the section Applications and select the item Autostart. A list of all apps that have permission to start with the system will be displayed here. Study it carefully and uncheck those utilities that you do not need immediately after turning on the screen.
- 🚫 Social networks often require a constant connection, but they can be configured to launch manually.
- 🛒 Applications marketplaces and food delivery are rarely needed in the background unless you are waiting for a courier.
- 🎮 Game launchers should not run in the background if you are not currently playing.
- 📸 Gallery and photo editors do not require autorun to work correctly.
Also worth checking application permissions. Some apps request access to run in the background, which allows them to function even after being closed. In the menu Applications → Access rights → Other permissions you can prevent specific utilities from working in the background. This is an effective way to reduce the load on Redmi 9.
Clearing the cache and deleting temporary files
The accumulation of cached data is another reason for the lack of free resources. The cache speeds up the loading of frequently visited pages and interface elements, but over time its volume can reach several gigabytes. Although the cache is stored primarily in internal memory, its processing requires the use of RAM.
Clearing can be done through the same "Security" application by selecting Cleanup. The system will scan the device and offer to remove garbage, including temporary files and remnants of deleted apps. For more detailed settings, go to Settings → Storage and click Clear data for specific heavy applications, such as browser or instant messengers.
It is important to distinguish between clearing the cache and clearing data. If you select "Clear data", the application will return to the state it was immediately after installation, and you will lose logins, conversations and settings. Choose Clear cacheto delete only temporary files without losing personal information.
☑️ Weekly cleaning of your smartphone
The folder Download and downloads in messengers deserves special attention. Photos, videos and documents received in WhatsApp or Telegramare automatically saved to memory. Their presence does not directly affect the speed of the RAM, but clogs up the storage, which indirectly slows down the operation of the entire system, including swap files.
Disabling system animations and visual effects
The visual beauty of the shell MIUI is achieved through many animations when opening windows, minimizing applications and switching between menu. For the processor and graphics accelerator Redmi 9 rendering these effects requires the allocation of certain resources that can be redirected to useful tasks.
To access hidden settings, you must activate developer mode. Go to Settings → About phone and quickly click 7 times on the item MIUI version. After the message “You have become a developer” appears, return to the main settings menu, scroll down to the section Advanced and select For developers.
| Animation parameter | Standard value | Recommended value | Effect |
|---|---|---|---|
| Window animation | 1x | 0.5x or Disabled | Instant opening of applications |
| Animation of transitions | 1x | 0.5x or Disabled | Quick switching between screens |
| Animation duration | 1x | 0.5x or Disabled | Reduced response time |
Changing these parameters will not free up gigabytes of memory, but will make the interface visually more responsive. The phone will seem faster, as the delays associated with rendering smooth transitions will disappear. This is especially true for devices with a limited amount of RAM.
⚠️ Attention: The interface of the “For Developers” menu may differ in different firmware versions. If you do not find the item you need, use the search in the settings by entering the word “animation.”
Using Do Not Disturb mode and energy saving
Energy saving modes in smartphones Xiaomi work not only with the battery, but also with the processor. When Hard Economy mode is activated, the system limits background application activity, data synchronization, and processor speed. This results in fewer apps being stored in RAM.
You can activate this mode through the notification shade or in the battery settings. Select the option No restrictions for important applications and Hard limit for others. This will prevent them from automatically starting and keeping them in the background, freeing up resources for the current task.
It is also useful to use Do Not Disturb mode while playing games or working with heavy applications. It blocks incoming calls and notifications, preventing the current process from being interrupted and the application from being unloaded from memory to process the notification. This helps keep the game in RAM without reloading levels.
Secret code for cleaning
The phone has an engineering menu called up by the code ##6484##, but it is better for ordinary users not to change the settings there unless absolutely necessary, as this can lead to unstable operation of the radio modules.
Drastic measures: reset and flashing
If software methods do not bring the desired result and the phone continues to slow down, the system may have accumulated critical errors or file conflicts. In this case, the most effective solution is a full reset to factory settings. This action completely clears RAM of software debris and returns the system to its original state.
Before performing this procedure, be sure to create a backup copy of all important data, since all information from the internal memory will be deleted. Go to Settings → About phone → Reset settings and select item Erase all data. After the reboot, you will receive a clean system.
For advanced users, it is possible to install custom firmware or the official global version if the device has a Chinese or stripped-down version of the software. Clean firmware without unnecessary pre-installed software (bloatware) consumes significantly less resources. However, this requires unlocking the bootloader, which can be difficult for a newbie.
⚠️ Warning: Unlocking the bootloader and flashing the device will void the warranty. Perform these steps only if you are confident in your skills and understand the risks.
A full factory reset is the most radical, but often the most effective way to restore the former speed to an aging smartphone.
Frequently asked questions (FAQ)
Does installing cleaning apps help? RAM?
In most cases, no. Third-party cleaners themselves consume resources, work in the background and display advertising. The built-in tools MIUI are quite sufficient for effective memory management.
Why does it quickly fill up again after clearing the memory?
This is normal system behavior Android. The system pre-loads frequently used applications into RAMso that they open instantly. Free memory does not mean performance.
Is it possible to increase the RAM on Redmi 9 programmatically?
It is impossible to physically increase the volume of the chip. The “Virtual Memory” function (expanding RAM using internal memory) is not available on all models and versions MIUI, and its efficiency is often lower than that of physical RAM.
How to find out which application is eating up the most memory?
Go to Settings → Applications → Memory. A list of apps will be displayed there, sorted by the amount of memory used over a certain time. This will help identify the “culprit” of the brakes.
Does full internal memory affect the operation of the RAM?
Yes, indirectly. If the internal storage is full to capacity, the system has no place to create swap files and cache, which leads to a general slowdown of the device and frequent crashes of applications from RAM.