Owners of Xiaomi, Redmi and Poco smartphones often face an unpleasant situation when internal storage is overcrowded and the system insists on freeing up space. This problem is especially acute for fans of mobile games, modern versions of which can take up tens of gigabytes. Built-in memory of 64 or 128 GB in 2026 is clearly not enough for comfortable use of the device if you install heavy projects like Genshin Impact or Call of Duty Mobile.
Fortunately, most Xiaomi smartphone models support microSD card installation, which allows for more space available. However, the standard data transfer procedure does not always work as expected and requires a deep understanding of the Android file system. In this article, we will discuss in detail all the available ways to move games, explain the technical limitations and offer alternative solutions for optimizing disk space.
Before you start active actions, it is necessary to understand that modern versions of the shell MIUI And HyperOS has its own features of working with external drives. Android security system restricts direct access to applications to files on the Internet. SD-This is why simply dragging folders through the file manager often fails to produce the desired result, and the game stops running or loses its saves.
Preparation of the device and memory card for work
The first step to freeing up internal memory is to properly prepare the external media, avoid using old or cheap memory cards that can become a bottleneck for system performance, read and write speeds directly affect the loading time of levels and texture in games, so saving is not appropriate.
Insert a microSD card into your Xiaomi smartphone slot.If the device supports a hybrid tray, make sure you don't use a second one. SIM-It's a simultaneous map, because it's physically impossible, and once you've installed it, it's going to ask you to format the drive, and it's going to be important to choose the right formatting mode, which is going to be the right formatting mode for you to use.
Android offers two options for use SD-As a portable storage device or as part of internal memory, the latter option is best suited for transferring games, although it has its own risks. When formatted as an internal memory (Adoptable Storage), the card is encrypted and linked to a particular device, after which it can not be simply transferred to another phone without losing data.
⚠️ Note: Formatting a memory card will completely destroy all data on it. Be sure to back up photos and documents before starting the procedure.
For gaming applications, the speed of the drive is critical. If you choose Portable Storage mode, the system will only store media files there, and the games will remain in internal memory. Internal Storage mode allows the system to consider the card as part of the main drive, which makes it theoretically possible to transfer applications there.
☑️ Pre-transfer check
Standard method of transfer through system settings
The easiest and safest way to move the game is to use the built-in operating system, which does not require third-party software installation and minimizes the risk of smartphone disruption, but it is worth noting that not all game developers allow their applications to be migrated to external drives.
To check this option, go to the Settings menu. → Annexes → All apps. Find the game you want in the list and click on it. In the menu that opens, select Memory. If you click Change or Move to SD-Map is active (not grey), you are lucky – the app supports transfer.
Press the appropriate button and wait until the process is complete. The transfer time depends on the size of the game and the speed of your memory card, at which point it is not recommended to use the phone or run other heavy applications, so as not to interrupt the process of copying files.
Unfortunately, in modern versions of Android and the HyperOS shell, this feature is often blocked for heavy gaming. SD-The cards can be unstable, leading to friezes and departures, so this method will not be available for most popular online projects.
⚠️ Warning: If the game starts to run slower or crashes frequently after transfer, return it to internal memory.
There is also the option to change the default location for new apps. Go to Settings → Memory and find the option for your preferred installation location. Even if this option is enabled, many games from Google Play will still be installed in internal memory, ignoring the system settings.
Using a file manager to transfer cache
When standard settings do not allow you to move the application itself (APK-You can try to transfer the cache of the file. Many games download additional resources (maps, sounds, textures) to a separate folder that can take up more space than the application itself.
To start, open a standard Explorer or download a more advanced one, like Total Commander or MiXplorer. You need to find a folder with the game. Usually the data is on the Android/data/ or Android/obb/ path. Folder names often correspond to developer domain names, such as com.miHoYo.GenshinImpact.
Select the folder with the game and select the action "Slice" or "Copy." Then go to the memory card (usually displayed as an SD card or storage/emulated). Create a similar folder structure there for Android/data or Android/obb and paste the files there.
After the transfer, launch the game. If it can't see the files, it may need permissions to access the new directory, in which case some file managers may suggest creating a symbolic link, but this often requires root rights, obtaining which cancels the warranty on the device.
| Type of data | Location. | Can be moved | Risks. |
|---|---|---|---|
| APK file | System section | Only through the settings | High (play scrap) |
| Cash (Obb) | Android/obb | Yes, manually. | Medium (the game won't start) |
| Conservation | Android/data | Carefully. | High (loss of progress) |
| Downloads. | Download | No restrictions. | No. |
What is a symbolic reference?
Advanced methods: Root rights and Link2SD
For users who aren’t afraid to experiment, there’s a more powerful tool called Link2SD, which allows you to force almost any application to a memory card, creating special links, but it requires root rights to your Xiaomi to work.
Obtaining superuser rights will unlock the bootloader and allow you to make changes to system files. The process of obtaining root through Magisk is quite complex and customized for each model. After successful rooting, install Link2SD from Google Play.
When you first start up, the application will ask you to select the file system of the second partition of the memory card. It is recommended to choose ext4 or f2fs, as they provide better performance and stability. FAT32, which is used by default, is not suitable for installing applications.
In the app list, find the game you want, click on it, and select “Create a link.” Mark all three: Dalvik-cache, App data, and External data, which will move not only the game files, but also temporary files, freeing up maximum space.
⚠️ Attention: Use Link2SD And root rights can lead to the failure of banking applications and games with anti-cheat.
The main advantage of this method is the ability to port even those applications that do not officially support such a feature, but the stability of the game will depend on the quality of your game. SD-Cheap cards may not be able to withstand the constant load of logs and cache.
💡
Use memory cards only from proven brands (SanDisk, Samsung, Kingston). Cheap AliExpress cards often have understated real speeds and result in rapid breakdown and data loss.
Alternative: Cleaning and optimizing storage
If transferring a game to a memory card is impossible or causes performance issues, it’s worth considering alternative ways to free up space.The smartphone’s internal memory runs significantly faster than any microSD card, and storing games there provides a better gaming experience.
Use the built-in Cleanup tool in the Security app, which finds temporary files, remnants of deleted apps and a social media cache that can take up gigabytes. Regular cleaning helps keep the system on track.
Also, analyze the DCIM and MIUI/gallery/cloud/cache folder. Often it stores thousands of thumbnails and deleted photos that just wait for final removal. Moving photos and videos to the cloud storage (Google Photos, Yandex.Disk) is a great way to make room for games.
Remember Deep Clean in memory settings, which allows you to find large files you may have forgotten, such as downloaded movies or archives, and remove unnecessary content is often more effective than trying to stretch memory with maps.
In today’s realities of 2026, internal memory UFS 3.1 or 4.0 in Xiaomi smartphones works many times faster than the interface of connecting memory cards. Therefore, the priority should be to store active games in the internal drive, and use the card exclusively for photos, videos and music.
💡
Transfer of games to SD-The best solution is to store games in internal memory and transfer media files to an external drive.
Possible problems and solutions
When moving games, users often encounter errors, and one of the most common is the message "App not installed" or "Not enough space," even if the map is free, which may be due to the map's file system or Android restrictions.
If the game stopped running after the transfer, try clearing its cache in the application settings. Sometimes the system takes time to index new paths to the files. In some cases, it helps to reboot the device after the data transfer.
There is also a problem when the game starts but requires you to re-download resources, which means that the paths to the obb files have been disrupted, in which case you will have to return the files back or re-download the game, pre-configuring the memory card as internal storage.
Another common cause of failure is the slow writing speed of the card, which means that if the memory card is old or cheap, it may not be able to transmit data to the game in real time, and as a result, you will see long downloads, jerks of graphics and a complete freeze of the interface.