How to Free RAM on Xiaomi: A Complete Guide to Optimization

Modern Xiaomi smartphones running MIUI shells or the new HyperOS have powerful hardware, but over time, even top-end models can slow down. The main reason for the performance decline is often a lack of free RAM (RAM). When RAM is crowded with background processes, the system begins to force applications to close, and animations become twitchy.

Owners of Redmi and POCO devices often face a situation where the phone “dulls” after a week of active operation without rebooting. This is normal behavior for Android, but the aggressive policy of memory management in Xiaomi firmware sometimes requires manual intervention. Forced cleaning of RAM through the standard menu “Extended Cleanup” does not remove the cache of applications completely, but only stops their processes, so the effect can be short-lived.

In this article, we will explore not only standard methods, but also hidden developer settings that allow you to really free up system resources. You will learn how to control auto-start, disable unnecessary system services and use special commands for deep cleaning.

Basic cleaning through built-in MIUI tools

The most obvious, but often underrated, way to do this is to use the regular Security app. Unlike third-party utilities, the system tool has deep access rights and can safely complete the kernel processes. To quickly access the cleaning functions, you just need to open the application and press the Cleanup button in the Memory block.

But standard cleaning is often superficial. To get the best results, you need to go to the advanced cleaning settings, where you can choose which types of files and cache will be deleted. It is important to understand the difference between cache and application data: deleting the first is safe, the second can lead to the departure of accounts.

For a deeper analysis, use Memory Extension if it is available on your model, which allows you to reserve some of your internal flash memory for RAM, which is critical for devices with 4 or 6 GB of RAM.

• 📱 Press and hold the menu button of recent apps for instant cleaning.
• 🗑️ Use the “Cleanup” widget on your desktop for quick access.
• ⚙️ Enable “Memory Extension” in the settings for virtual RAM augmentation.

Autostart and Background Process Management

One of the main reasons for RAM eating away is applications that run with the system and hang in the background. There is a separate auto-run control mechanism in the MIUI shell that is often ignored by users. Many instant messengers and social networks prescribe themselves to auto-boot without demand.

To prevent unnecessary programs from starting automatically, go to Settings → Apps → Auto Run. Here, leave only what you really need to receive in real time (such as Telegram or email client). The rest, including stores and games, it is better to turn off - they will start themselves when you open them.

Also worth noting is "Other permissions." This section hides the setting "Run in the background." If you stop an application from running in the background, the system will aggressively unload it from RAM immediately after you fold it, which is the perfect way to free up resources for heavy tasks.

⚠️ Note: Do not disable the Android System Services and MIUI Daemon, otherwise the phone may go into a cyclical reboot or stop responding to touches.

For advanced users, there is a developer mode where you can limit the number of background processes. This is a radical measure, but it is guaranteed to free up megabytes of free memory. Be careful: too tight restrictions can lead to malfunctioning notifications.

Using Developer Mode to Optimize RAM

The Hidden Developer Menu is a powerful tool that gives you complete control over how the system behaves, and you have to click 7 times on the build number in About Phone to get there, and when you activate it, you will have a new item in the settings menu that will show you the key settings to use for memory.

Find the Applications section and the Background Process Limit option. The default is Standard Limit. By changing the value to No More than 2 Processes or No Background Processes, you will force the system to keep only the active application in RAM, which drastically reduces memory consumption, but can increase the load time of programs when switching.

Another important parameter is “Do Not Stay Activated.” If you turn on this feature, the system will destroy the activity of the application as soon as the user leaves it, which is the last measure for devices with very low RAM (2-3 GB), which ensures maximum performance of the current running application by constantly restarting others.

adb shell settings put global background_process_limit 2

Use of the ADB-You can set these settings remotely or scriptedly, but for most users, you just need to change the settings in the GUI. Remember, once you reset the settings, these parameters will return to factory values.

Disabling system services and advertising

HyperOS shell and older versions of MIUI contain many pre-installed services that consume resources. Analytics, advertising (MSA) and personalization services are constantly hanging in the memory, and turning them off is one of the most effective ways to free RAM forever.

First of all, it is necessary to disconnect the service. MSA (MIUI System Ads. The way to it: Settings → Passwords and security → Access to personal data → MSA. Turn off the switch and wait. 10 Seconds, then confirm action, and it is also recommended to restrict access to data for Analytics and Mi services. Video/Music, if you don't use them.

Next, you go through the list of system applications and disable those that are not used. For example, if you are not using Mi Browser or GetApps, they can be stopped or even removed through ADB. Each system application stopped is 50 to 200 MB of free RAM.

Remember that aggressively removing system components can disrupt the app store or sync. Be careful and back up important data before making major changes to the system.

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Use In-Air mode for 10 seconds if you need to urgently release RAM from network services, which will quickly break the connections of all background processes.

Specialized cleaning applications

While Xiaomi’s built-in tools are effective, third-party developers offer tools with more flexible algorithms, and applications like SD Maid or Files by Google can find tails of remote programs and a deep cache that doesn’t see a standard cleaner.

But be very careful with the so-called RAM Boosters and Battery Savers of the Play Market, many of which are carrot-and-stick: they artificially load the system to then "heroically" clear the memory, using up battery power and CPU resources. Real optimization doesn't require a constant backup cleaner service.

The best solution among third-party software is file managers with storage analysis function, which allows you to manually remove heavy folders with logs, update residues and temporary files, freeing up space not only in RAM, but also in permanent memory, which indirectly affects the speed of the system (swap files).

• 🛡️ Use it. SD Maid for residual files (CorpseFinder).
• 📂 Files by Google Safely Cleans Messenger Cache.
• 🚫 Avoid apps with “flying rockets” and cleaning animations.

⚠️ Note: Apps requiring root rights for “deep cleaning” can damage system files MIUI. Use them only if you know which files you are deleting.

Radical measures: resetting and reflashing

If the software methods don't work and the phone continues to slow down even after cleaning, there may be critical errors or fragmentation in the system, in which case the most effective way to free up resources is to completely reset to factory settings.

Before the procedure, make sure to back up your data via Mi Cloud or on your computer.Reset will delete all user data, settings and applications, returning the phone to the "out of the box" state, guaranteed to remove all the software debris accumulated over the years of use.

For advanced users, an alternative might be custom firmware (such as Pixel Experience or LineageOS), which uses significantly less RAM than the overloaded MIUI, which could give them a second life on older devices.

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Wipe Data is the only tool that removes hidden system errors that cause memory leaks that cannot be fixed by a conventional cleanup.

After you reset, don't rush to install hundreds of applications at once. Install them gradually, watching the behavior of the system. Often it turns out that the brakes were caused by one particular, poorly optimized application that you install again.

Frequently Asked Questions (FAQ)