How to switch memory to Xiaomi: the full guide

Owning a modern Xiaomi smartphone often confronts the user with the need to optimize resources, especially when standard RAM is no longer enough for demanding games or multitasking. Device owners often look for ways to switch memory to Xiaomi, meaning either redistributing system resources or activating hidden RAM extension functions. Understanding the architecture of MIUI and HyperOS allows you to squeeze the maximum from the existing hardware without the need for flashing.

There is a common misconception that physical memory cannot be changed by software, but modern technology allows the system to dynamically manage a virtual pool of resources. In this article, we will discuss in detail the mechanisms of Memory Extension, manual cache cleaning and hidden developer settings that affect the performance of your gadget.

Before we start taking drastic measures, it is important to assess the current state of the system and understand what type of memory requires attention (RAM) It is responsible for running applications right now, while the built-in (ROM) It stores your photos, videos and installation files, and the confusion between these concepts often leads to wrong actions, so let's start with a basic analysis of the situation.

Analysis of current loading of system resources

The first step before any interference with the system should be diagnostics, the user needs to be clear about how much free resources are available at the moment and what processes consume them most, and the MIUI has a powerful monitoring tool built in that hides more data than it reveals by default.

For detailed statistics, go to Settings → About Phone → All specs or use the built-in Security app. This shows not only the total volume, but also the current load on the processor and memory. If the RAM boot indicator is constantly in the red zone even without running heavy applications, this is a signal to action.

Notice the background processes that can stealthily eat up resources, and often the heavy ones aren't games, but social networks or news aggregators that are running in the background, and analyzing that data will help you decide whether to expand virtual memory or manually clean it.

• 📊 Check the total amount of free RAM in the task manager.
• 🔍 Identify voracious applications that consume more than 5% of resources in the background.
• ⚙️ Assess the occupancy of the built-in storage, as the lack of space affects the operation of the cache.

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The critical threshold is the filling of RAM by more than 85% at rest, which requires immediate intervention.

The system analyzer in Xiaomi works quite accurately, but for deep diagnostics you can use third-party utilities such as DevCheck or CPU-Z. They will show the type of memory used (LPDDR4X or LPDDR5) and the current frequency, which is important for understanding the potential of the device.

Memory Extension Memory Extension

One of the most sought-after features in modern Xiaomi smartphones is Memory Extension, which allows a portion of the embedded storage (ROM) to be used as additional RAM (RAM), which actually creates a paging file to reset data from inactive applications, freeing up fast physical RAM for current tasks.

This function is activated via the settings menu. The path may vary slightly depending on the shell version, but it is usually in the Settings → Advanced Settings → Expanded Memory. Here the user is asked to select the amount of virtual memory added: options are usually available from 2 GB to 7 GB depending on the model.

It's important to understand that turning on this option requires a device reboot. After a restart, the system will redistribute the file system, and in the task manager you will see an increased amount of RAM available. However, it's worth remembering that the speed of the built-in flash drive is lower than that of the RAM chips, so the performance gains will be noticeable mainly in multitasking, not in heavy games.

Not all devices are equally efficient. On models with fast memory UFS 3.1, the effect will be more noticeable than on budget models with eMMC. It is also worth considering that active use of the paging file can theoretically accelerate the wear of the built-in drive, although modern memory controllers minimize this risk.

• 🚀 Increases the number of simultaneous applications in the background.
• 📉 May slightly reduce the speed of launching heavy games due to the difference in memory speeds.
• 🔄 Requires a mandatory smartphone reboot to activate changes.

Developer settings for memory management

To fine-tune how the system manages resources, you need to activate the developer menu. This is a hidden section that contains Android engineering settings. To get there, you need to go to Settings → About phone and quickly click on the MIUI or HyperOS version seven times.

When the developer mode activation notification appears, a new option will appear in the settings menu, Additional or Advanced Settings, and we are interested in the process and memory section, and here you can find the option "Background Process Limit", which allows you to severely limit the number of applications that remain in memory.

The default is "No Limits," but for devices with low RAM, you can set a 2 or 3 process limit, which will make the system more aggressively unload old applications, freeing up resources for an active window. But beware: too tight restrictions can disrupt messengers and navigators.

Settings → Additional settings → For developers → Limit of background processes

Another important setup is to turn off animations. While this doesn't add physical bytes of memory, the visual responsiveness of the system increases, creating a sense of faster operation. In the same developer menu, find "Window animation", "Jump animation" and set a value of 0.5x or Off.

The developer section also has a Do Not Save Action feature, which, if activated, will completely destroy the application activity as soon as the user leaves it, a last resort to save memory that makes multitasking impossible but minimizes RAM.

Cache cleanup and storage optimization

Often the problem is not a lack of physical memory, but a cluttered system with temporary files. Application cache can take up gigabytes of space, slowing down the memory controller and creating a bottleneck effect. Regular cleaning is a basic skill of the Xiaomi owner.

The built-in Security app offers a Cleanup feature that deletes temporary files. However, for deep cleaning, you'd better use a manual method. Go to Settings → Storage and analyze which apps take up the most space. Often the leaders are Telegram, YouTube and TikTok.

For each of these applications, you can clean the cache without deleting personal data. Go to Apps → All Apps → [Selected App] → Memory → Clear the cache. Don't confuse it with the "Clean All" button, which will reset the app to factory settings and delete logins.

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The.thumbnail thumbnail files in the gallery folder can grow up to 5-10 GB. Their periodic removal significantly accelerates the opening of the album with a photo.

You should also pay attention to the Download folder and MIUI/debug_log. The latter can accumulate error logs if debugging is enabled, and deleting them is safe and often returns several hundred megabytes of free space, which indirectly helps the system manage virtual memory more efficiently.

Working with virtual memory through ADB

For advanced users who want to gain full control over how to switch memory to Xiaomi, there is a method of using ADB (Android Debug Bridge), which allows you to make changes that are not available through the standard interface, for example, forcefully change the settings of ZRAM or manage process priorities.

You’ll need a computer, a USB cable, and ADB drivers installed. On your phone, you’ll need to enable USB Debugging in the developer menu. Once connected to your PC, you can send commands that affect the resource allocation of the Linux kernel on which Android is based.

One of the most useful commands is to change the size. ZRAM-This is the partition that's used to compress data in RAM, and increasing its size can help keep more applications in the background, but it will put more strain on the processor because of the compression algorithms.

adb shell su -c "echo 4G > /sys/block/zram0/disksize"

Important: this command requires superuser (Root) rights. On standard Xiaomi firmware, without unlocking the bootloader and the resulting Root access, such commands cannot be executed. Trying to do this on a locked device will not lead to anything.

⚠️ Note: Interference with system partitions through ADB without proper knowledge, it can lead to unstable system operation, cyclical reboots or complete loss of data.

If you're not confident, you'd better limit yourself to standard optimization methods. ADB is a powerful tool, but it doesn't forgive mistakes. For example, changing swap parameters incorrectly can cause the phone to stop responding to commands and require a factory reset.

Typical errors and problem solving

In the pursuit of performance, users often make mistakes that backfire, and one of the most common is the installation of so-called memory accelerators from the Play Market, which are themselves processes that hang in the background, consume the battery, and take up the very RAM they are supposed to release.

Another mistake is manually cleaning memory through Task Manager, which is that Android manages memory efficiently by filling it with free data for quick access, and forced application closure forces the system to reboot it into memory, wasting battery power and CPU time.

Also worth mentioning is the problem of overcrowded storage, where if the internal memory is 95-98% full, the system can't use caching and swap mechanisms effectively, and then no developer settings can help, so you need to make room.

• ❌ Do not install memory boosters and clinchers.
• ❌ Don’t keep your internal memory completely full.
• ❌ Do not disable system processes that you do not know the purpose of.

If the phone continues to brake after all the manipulations, it may be the hardware or file system that is damaged, and in such cases, you may need to completely reset (Wipe Data) or flash the device through the Mi Flash Tool.

Frequently Asked Questions (FAQ)