Modern Xiaomi Redmi smartphones have a lot of RAM, but even 8 or 12 gigabytes can get busy over time. Users often face situations where the interface starts to slow down and applications load longer than usual. This is a sure sign that RAM is full of background processes and cache that require immediate cleaning.
The MIUI operating system and its current version of HyperOS have powerful built-in resource management mechanisms, but not all gadget owners know how to use them correctly. Unlike other brands, the Xiaomi ecosystem has its own task distribution features that must be considered for the stable operation of the device.
In this article, we will take a look at all the available ways to free RAM, from standard tools to advanced developer settings. You will learn to distinguish useful multitasking from junk processes that really slow down the system.
Anatomy of RAM in MIUI and HyperOS
Before you start taking action, you need to understand exactly how memory management in the shell from Xiaomi works.The system aggressively unloads processes that it considers inactive, but sometimes this mechanism fails due to errors in the code of applications or crowded cache.
Many users mistakenly believe that the constant forced cleaning of all processes is useful. In fact, frequent restarting of heavy applications such as navigators or messengers consumes more battery power and CPU resources than their presence in the background. Full cleaning of RAM is necessary only when overt freezes or before running resource-intensive games.
It’s important to distinguish between free and available memory. Android is designed to fill up the space with frequently used data for instant response, and the problem is not high occupancy rates, but the presence of “dead” processes that do not respond to system commands.
Use of the built-in Security application
The easiest and safest way to free up resources is to use the regular Security app, which is preinstalled on every device in the brand, and it has access to system processes at the kernel level, allowing you to safely complete tasks without the risk of damaging system files.
To start the cleaning procedure, open the application shortcut and click on the large green Clean up button. The system will analyze the running processes and suggest removing temporary files that occupy space in RAM, which is effective for quick one-time optimization before starting a game.
However, be careful with automatic acceleration settings. In some firmware versions, the Acceleration feature can aggressively unload messengers, which can cause you to miss important notifications.
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Set up automatic memory cleanup when you reach the 80% threshold in the Security settings so that the system monitors performance.
Additionally, the Security app also includes Memory Extension, which uses a portion of the memory as virtual RAM, which can help if you have a lot of applications installed but the virtual memory is slower than the physical memory.
Manual control of background processes
If the automatic tools don't work, you can switch to manual control. This takes longer, but gives you full control over what's working in the background of your Redmi. To start, open the menu of running apps by swiping from the bottom up and holding your finger (or pressing the menu button).
At the top of the screen, you'll see a lock icon or an "A" with a number -- that's an indicator of app locking. Locked apps won't unload when you clear memory. Check this list: often there are games or heavy programs that you don't need right now.
To unlock the app, simply tap the lock next to its window or hold your finger for a preview and select the appropriate item on the menu. Once unlocked, a standard swipe or X button cleanup is guaranteed to complete the process.
☑️ Background process verification
There is also a hidden way to view active services. Go to Settings → About Phone → MIUI version and quickly tap 7-10 times to activate Developer Mode. Then, in the advanced settings, you can see detailed statistics of memory usage by each process.
Set up background activity restrictions
One of the main reasons for the “eating” of RAM is the unoptimized operation of applications in the background. The MIUI shell allows you to strictly regulate the behavior of each program, preventing it from working when the screen is turned off.
Go to Settings → Applications → All apps. Select a suspicious program that consumes a lot of resources, and find Autostart or Save Charge. Set a background activity limit so that the system will force the application to stop when you are not using it.
⚠️ Note: Do not limit the background work of Google system services, Mi Cloud services and instant messengers if you want to receive notifications on time, this will lead to sync failures and loss of messages.
Also worth checking is the autoload list. Many programs are registered there without demand and start immediately after the phone is turned on, taking up precious megabytes. Turn off all the extra in the Settings menu → Apps → Autorun.
For advanced users, there is a developer mode where you can set a limit to background processes. Find the "Background Process Limit" option and select "No More than 2 Processes" value, which will radically reduce the load on RAM, but can lead to restarting applications when switching between them.
What is ZRAM and should you touch it?
Comparative analysis of cleaning methods
Different methods of freeing up memory have different efficiency and consequences for the system, and it is important to understand what tool to use in a particular situation, so as not to harm the stability of the device.
| Cleaning method | Efficiency | Security | Impact on the battery |
|---|---|---|---|
| Security Annex | Medium | Tall. | Neutral. |
| Manual closing | Low. | Tall. | Neutral. |
| Limitation of background activity | Tall. | Medium | Positive. |
| Rebooting the device | Maximum | Tall. | Temporary leap |
As you can see from the table, the most comprehensive approach is to limit background activity, but it requires fine-tuning: Quick cleaning through the built-in app is an ambulance, not a solution.
If none of the software methods work and the phone continues to brake even after the reboot, it may be the hardware or the system files are damaged, which may require a full reset to factory settings.
Third-party utilities: benefit or harm?
Google Play has thousands of apps that promise to speed up your phone in one click. Popular titles like Clean Master or CCleaner are familiar to many, but using them on modern Xiaomi smartphones often brings more problems than solutions.
Third-party cleaners operate on a constant monitoring principle, which in itself consumes the processor and battery resources. They try to trick the system by forcibly unloading processes that Android immediately tries to run again, which creates an endless cycle that heats the device.
- 🚀 Advantages: Ability to fine-tune the cache of specific applications and deep storage analysis.
- ⚠️ Risks: Aggressively deleting important temporary files, intrusive advertising, and collecting user data.
- 📉 Reality: On the latest versions of Android, third-party cleaners have limited access rights and cannot work more efficiently than system tools.
Experts recommend that you refrain from installing such programs on devices with a shell MIUI 12/13/14 and HyperOS. Built-in mechanisms are enough to maintain the purity of the system. If you still decide to use third-party software, choose time-tested open source solutions.
⚠️ Warning: Avoid applications requiring a root right for deep cleaning without understanding the consequences.This can lead to loss of warranty and disruption of banking applications.
When resetting or resetting is necessary
Sometimes, the accumulated software debris and driver errors lead to a situation where simple cleaning of processes does not help, in such cases, the classic method remains to restart the device.
Restarting the system completely clears RAM, resets all temporary buffers, and restarts system services, and it is recommended to do this at least once a week, especially if you are actively using navigation or high-resolution cameras.
If the phone is slowing down even after it’s rebooted and cleaned, it may be time for more drastic measures. Check the installed app list: often times, memory shortages are caused by heavy social media or games that are poorly optimized.
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Regularly restarting your smartphone (every 3-5 days) is the easiest and most effective way to maintain high performance without installing additional software.
In the extreme case, when nothing helps, you can reset your settings. Before that, be sure to back up your data to the Mi Cloud cloud or your computer, which will bring the phone back to the “out of the box” state by removing all the accumulated errors over the years of use.