Modern Android applications and updates require more resources, which is especially noticeable on devices released a few years ago. Xiaomi Redmi 4X, with 2 or 3 gigabytes of RAM, was originally positioned as a budget but productive smartphone, but over time, the accumulation of temporary files and background processes inevitably slows down its work. When RAM is filled, the system begins to force the application to close, and the interface responds to touch with a noticeable delay.
Effective RAM cleaning not only restores the speed of the interface response, but also extends the battery life of the device. In this article, we will look at proven methods of freeing up system resources that are relevant specifically for the MIUI shell installed on the Redmi 4X. You will learn to distinguish between safe cleaning methods and actions that can disrupt the stability of the gadget.
Diagnostics of memory status and impact on performance
Before we start taking drastic measures, we need to understand the current state of the system and what resources are being consumed most. Redmi 4X owners often face a situation where there is less than 500 MB of free memory even after all visible applications are closed, and this is due to the peculiarities of Android, where many processes remain active for quick re-runs.
High RAM load causes the processor to constantly exchange data with internal memory, which is much slower. The critical threshold for stable MIUI operation on the Redmi 4X is the balance of less than 300-400 MB of free RAM. If the indicator shows values below this level, the system begins to aggressively unload background tasks, which can cause loss of unsaved data in open programs.
For the initial assessment of the situation, you can use built-in monitoring tools or third-party utilities. It is important to understand that 80-90% memory filling is normal for modern OSes, but being constantly at the limit of 95-99% indicates the presence of a problematic application or accumulated debris.
- 📉 A sharp decline FPS in games and animations of the interface
- 🔄 Frequent reboots of active applications when switching between them
- ⏳ Long response time to clicks and scroll lists
- 🔋 Accelerated battery discharge due to constant processor activity
Use of the built-in MIUI optimizer
Xiaomi’s MIUI shell has powerful built-in resource management tools that don’t require additional software installation. The standard “Security” cleaning method is the safest for inexperienced users, as it eliminates the risk of deleting system files. To start the procedure, you need to find an application with a shield icon that is default in the Tools folder or on the home screen.
Once the application is opened, the system automatically scans for malware and memory usage, pressing the Clean up or Accelerate button (depending on the MIUI version) forcibly closes the background processes that are not critical to the system's operation, but it is worth considering that the effect of such a procedure is often short-lived, as MIUI system services tend to immediately restore their activity.
⚠️ Note: Do not use the “acceleration” function too often (every 5 minutes), as the constant forced unloading of processes can lead to increased battery consumption due to the need to re-initialize applications.
For a deeper setup, you can go to the Security settings and activate the memory autocleaner, which will periodically check the RAM occupancy and free up space when a certain threshold is reached, allowing you to maintain performance at an acceptable level without user intervention.
☑️ Optimizer check MIUI
Manual control of running applications
Automated systems don’t always correctly determine which programs you need right now and which you can close. Manual control allows you to point-free a significant amount of RAM by closing heavy applications such as social networks or navigators. On Redmi 4X, this can be done through the menu of the last running applications called by a swipe up (or menu button, depending on the type of navigation).
This menu displays thumbnails of all active programs. A thumbnail upwards completely closes the application, unloading it from RAM. Special attention should be paid to browsers with many open tabs and instant messengers that can consume hundreds of megabytes even in the background. Regularly cleaning this list before running resource-intensive tasks, such as games, gives a noticeable increase in speed.
You can also limit your background activity in the settings of each particular application. By going through Settings → Applications → All applications, select the program you want and find Activity Control. Setting a background limit will prevent unauthorized resource consumption when you are not using the application.
- 📱 Social media (VK, Telegram, Instagram – the main consumers RAM
- 🌐 Browsers with open heavy pages
- 🗺 Navigation services that work in the background
- 🎮 Games that are not closed after the session
Why are apps running again?
Cleaning the cache and temporary files of the system
Cached data accumulation is one of the main reasons for the lack of space not only in internal memory, but also an indirect impact on the work of RAM. Cache speeds up the load of frequently visited pages and functions used, but over time its volume can reach gigabytes. For the Redmi 4X with its limited storage capacity, this is critically important.
Cleaning can be done selectively for each application through the settings menu or globally through the recovery menu, but the second option requires caution. In normal operation, it is recommended to regularly visit the Settings → Memory and use the Clear Cache button. This action is safe and does not delete your personal data, logins or passwords.
| Type of data | Where it takes place | Impact on speed | Security of removal |
|---|---|---|---|
| Cash app. | Internal memory. | High (accelerates launch) | Safe. |
| Residual files | Internal memory. | Low. | Safe. |
| Application data | Internal Memory + RAM | Critical (setting reset) | It requires caution. |
| Background processes | RAM (Ram) memory (RAM) | High (brakes system) | Safe (reboot) |
Special attention should be paid to temporary update files and APK installation packages, which often remain in the download folder, and their removal frees up space for virtual memory (swap), which indirectly helps the system to work more stable when there is a lack of physical RAM.
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Use the built-in memory analyzer in Settings → Memory to see which applications take up the most space and resources in real time.
Disabling animations and visual effects
The visual component of the MIUI interface consumes a significant portion of GPU and RAM resources. On budget devices like the Redmi 4X, turning off or reducing the complexity of animations can significantly improve perceived performance — perceived speed. This will not free up megabytes in numbers, but will relieve the processing of graphics.
To access the advanced animation settings, you need to activate the developer mode, this is done by seven times clicking on the build number in the About Phone section. Once the corresponding notification appears, the "Developers" option will open in the additional settings menu, where you can find the parameters of the scale of the window animation, transition and duration.
Setting "No animation" or "0.5x" instead of "1x" makes the interface more responsive. The system stops wasting time and resources on rendering smooth transitions, instantly displaying the desired content, this is especially true in low memory occupancy, with every bit of the processor on the account.
⚠️ Warning: Disabling animations completely can make the interface less understandable, as visual cues about transitions between screens will disappear. 0.5x.
Use of the "Easy Theme" and (Lite) versions
One of the most effective ways to reduce the load on the hardware of the smartphone is to switch to lightweight versions of the interface and applications. In the settings of MIUI themes, there are often standard "Light themes" that use static wallpaper, simplified icons and a minimum of decorative elements, which allows the system to keep heavy graphics assets in mind.
In addition, for popular social networks and services, there are Lite versions of applications (for example, Facebook Lite, Skype Lite, Google Go) that consume significantly less RAM and CPU time, while maintaining basic functionality. For a Redmi 4X owner, replacing a standard heavy client with a lightweight counterpart can be a decisive factor in the struggle for free megabytes.
It’s also worth considering installing a launcher with minimal resource consumption if the standard shell is not working well, but replacing the system launcher with Xiaomi may have its own peculiarities and require additional access rights settings so that the system does not unload it from memory immediately after the screen is turned on.
- 🎨 Installation of static wallpaper instead of living
- 📉 Use Lite versions of apps from Google Play
- 🚫 Disabling widgets on the desktop
- 🌑 Using a dark topic (in some cases, it saves resources) GPU)
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A comprehensive approach combining cache cleaning, autoload management and the use of lightweight versions of applications gives a better result than just periodic cleaning of RAM.