How to transfer applications to SD-map

Owners of smartphones Xiaomi, Redmi and Poco often face a lack of internal memory, especially on budget models with a volume of 32 or 64 GB. MIUI system, although optimized, over time, overgrown with cache, and modern applications take up more and more space, requiring expansion of storage. Installing a microSD card is a logical solution, but standard Android means allows you to transfer far from all programs.

In this article, we will discuss not only standard methods of transfer, but also more advanced methods available to Xiaomi users. You will learn about the risks, features of the file system and how to turn a flash drive into a full-fledged continuation of the internal memory of the device, bypassing the manufacturer’s limitations.

Preparation of the device and memory card

Before you start any manipulation of the file system, you need to make sure that your equipment is ready to work. It is critical to use a quality memory card, as cheap analogues can slow down the entire smartphone or fail after the first time you write large amounts of data. It is recommended to choose the standard cards UHS-I or UHS-II speed-class.

Install the card in the slot of your Xiaomi device.If the slot is combined, make sure you don't use the second one. SIM-The card will only work on two modules at once, and after the physical installation, the system will ask you to format the drive.

• 📱 Select “Use as portable storage” if you plan to simply store photos and videos.
• 📱 Select “Use as internal storage” if you want to integrate the card into the system (requires formatting).
• 📱 Save all important data from map to computer, as formatting will destroy all information.

⚠️ Warning: The process of formatting the card to internal memory makes it unreadable on other devices without special unlocking.

For stable operation of the system, the card read speed should be comparable to the speed of the built-in memory eMMC or UFS. If the card is too slow, you will notice “slowdown” of the interface and a long start of programs.

Standard method of transfer through settings

There is a basic memory management feature in the MIUI shell that allows you to move some applications. However, this method does not work for all programs, since software developers may not allow installation on external media. To check the portability, go to the Settings → Memory menu.

Here you'll see a list of the installed applications and the space they take. If the program supports the transfer, the "Move to" button. SD-The map will be active, otherwise the system will tell you that it is impossible to move.

Often, users find that only a fraction of the data can be transferred with standard tools, and the main body of the application remains in internal memory, a security limitation of Android designed to protect user data and ensure speed.

Using a Developer Mode for Forced Transfer

There is a hidden feature in Android that allows you to force any application to be installed on an external drive. To activate this option, you need to access the developer menu. → About the phone and quickly press 7 times on the item "Version" MIUI».

Once you have a “You’ve become a developer” message, go back to the main settings menu and select “More” → “For Developers.” Scroll down to the “Apps” section and find “Allow Saving to External Drives.”

The path to hidden setting:


Settings → Additional → For Developers →




Appendices → Allow storage on external drives

Activation of this switch causes the system to count SD-The card is a priority place to install new programs, but it should be borne in mind that system stability can be reduced if the memory card has a low response rate.

Expand memory through ADB (for advanced users)

The most effective way that really turns a memory card into a full-fledged extension of internal storage on Xiaomi involves using the ADB debugging bridge. This method requires connecting the smartphone to a computer and executing commands through the console. You will need to install ADB drivers and enable USB debugging in the developer menu.

Connect your phone to your PC in USB Debugging mode. Open the command line on your computer in the folder with ADB installed and type in the adb shell command. If the connection is successful, you will see an invitation to the phone's command line.

Executing the sm partition command completely destroys the data on the map and re-marks its file system, and once the phone is rebooted, the memory menu will have a combined volume, and you can now port even those applications that previously did not want to move.

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Method ADB — The only way to get around tough restrictions MIUI and make the system think that SD-The card is a factory memory module.

Problems and limitations of applications with SD

Despite the technical capabilities of portability, there are some fundamental limitations: Many modern applications, especially banking clients, instant messengers like WhatsApp and navigators, require high speeds to access data that conventional microSD cards cannot provide.

In addition, widgets and live wallpapers may stop updating or work with a delay if their files are on an external medium. Android mounts external drives later than the main services start, which leads to “Application not found” errors when the system starts.

• 📉 Reduce the speed of downloading applications to 30-50% compared to internal memory UFS.
• 🔋 Increased battery consumption due to constant read/write operations on a slow drive.
• 🔒 Loss of access to data when the card is removed or damaged.

⚠️ Note: It is not recommended to store on the transferred SD-Map data of critical applications, such as bank clients or two-factor authenticators, due to the risk of loss of access.

Optimizing Multimedia Storage

Instead of risk-taking the apps themselves, it's much more efficient to redirect the storage of media files. Camera, voice recorder and instant messengers allow you to choose between the two. SD-This frees up precious interior space without affecting the speed of the programs.

In the Camera app, click on the settings gear and select Save on SD-For browsers such as Chrome or UC Browser, you can also specify the path for downloadable files in download settings. In Telegram and WhatsApp, the paths to media folders can be changed in the storage settings.

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Use the Cleanup feature in Xiaomi’s Security app regularly to delete temporary files, which often take up more space than the apps themselves.

This approach allows you to keep “heavy” applications on a fast internal drive, and move photos, music and cache of cards to a memory card, which maintains the balance between performance and the amount of space available.