Smartphone owners Xiaomi i Redmi often face a lack of internal memory, especially in budget models with 32 or 64 GB drives. The system MIUI by default tends to fill the system partition, which leads to slower operation of the device and the inability to install new apps. The solution to this problem lies in the proper use of an external drive, but the process of transferring data has its own nuances.
Moving applications to a memory card is not just copying files, but a complex procedure for setting access rights and changing the logic of the operating system. Android. In the latest firmware versions, manufacturers often limit this feature to encourage the purchase of more expensive versions of smartphones with more internal memory. However, there are proven methods that allow you to bypass these limitations and effectively use SD card as full-fledged storage.
Preparing a memory card and checking compatibility
Before starting any manipulations, you need to make sure that your device physically supports working with external drives. Not all models Redmi have a slot for memory cards, and some hybrid trays have space for microSD combined with the second slot for SIM cards. Insert the card into a switched off phone or use the eject menu to avoid damaging the contacts.
After installing the drive, the system will prompt you to configure it. It is critical to choose the correct operating mode here. Transferring apps requires Internal Storage (or Use as Internal Storage) mode rather than Portable Storage. In portable storage mode, the card is used only for photos, videos and music, and it will not be possible to install apps on it.
Use memory cards with speed class UHS-I U3 or higher. Slow cards (Class 4 or Class 6) will cause severe slowdowns in the operation of applications, since their read speed is much lower than that of the built-in flash drive.
Please note that when formatting the card into internal memory, all data on it will be permanently deleted. The system will encrypt the drive, making it unreadable by other devices, including computers and other phones. This is a security measure to prevent data theft if the card is lost.
⚠️ Warning: If you remove a card formatted as internal memory without first transferring the data back, all applications installed on it will no longer run and their data will be lost.
Standard transfer method through settings MIUI
In most current versions of the shell MIUI the transfer process is simplified as much as possible, but is hidden in the depths of the menu. Once the card is formatted as internal memory, the system automatically starts prompting for data transfer. However, the user can initiate this process manually through the storage settings.
Go to the menu Settings and find the section About phone, then select Storage. Here you will see two sections: internal memory and card SD. Tap the gear icon or three dots in the corner of the screen to open more options. If the card is configured correctly, the option “Transfer data” or “Use as internal memory” will appear if this was not done automatically.
- 📱 Go to the section
Applicationsin the phone settings. - 💾 Select a specific application from the list that you want to move.
- 🔄 Press the button
EditorMemoryand select the card SD. - ✅ Confirm the action and wait until the copying process is completed.
It is worth noting that the button for changing the storage location may be inactive (gray) for some system applications and apps whose developers have prohibited installation on external media. This limitation is due to the fact that widgets and background services of such apps may not work correctly when the path to the files is changed.
Using developer mode to force a transfer
If the standard menu does not allow you to move the desired application, you can use hidden settings for developers. This method allows you to force installation of apps on external media, ignoring the recommendations of software developers. Be careful, as this may affect the stability of individual apps.
To activate developer mode, you need to go to Settings → About phone and quickly click 7 times on the item MIUI Version. After the message “You have become a developer” appears, return to the main settings menu, go to Additional and select For developers. Find the item Default or Applications in the list and activate the option Allow saving to external drives.
| Option | Standard mode | Developer mode | Risks |
|---|---|---|---|
| Function availability | Only for supported applications | For most custom applications | Unstable operation of widgets |
| Operation speed | Stable | Depends on the speed of the card | Possible crashes |
| Security data | High | Medium | Data loss during failure |
| Configuration complexity | Low | Average | Care required |
After enabling this option, it is recommended to restart the device. Now, when installing new applications, the system will by default offer a memory card if it is configured as internal storage. For already installed apps, the transfer path will remain the same: through the management menu of a specific application.
⚠️ Attention: Enabling the “Allow saving to external storage” function does not guarantee the operation of all applications. Some apps, especially banking clients and instant messengers, may block launch when they detect installation on an SD card for security reasons.
Transferring media files and cache to free up space
Often the problem of lack of space is not related to the applications themselves, but to their cache and the media files that they store in the internal memory. Messengers like Telegram i WhatsApp can occupy tens of gigabytes, storing photos and videos in the system partition. Transferring this data is much more efficient than moving executable app files.
In the settings of most messengers there is a built-in function for changing the folder for saving media. For example, in Telegram you can go to Settings → Data and memory → Save path and select a memory card. This action does not require superuser rights and is safe for the operation of the application.
What to do if the application does not have a save path setting?
If in the application settings There is no path change option, you can use a file manager. Find the application folder in the internal memory (usually in the Android/data or root folder), cut it and paste it into a similar directory on the memory card. However, after a restart, the application may recreate the empty folder, so this method requires verification.
To transfer photos and videos taken with the camera, just change the settings of the Camera application itself. Open the camera, go to settings (gear icon) and turn on the switch Save to SD card. All new pictures will be automatically recorded on an external drive, freeing up valuable space inside the phone.
Problems and limitations when working with an SD card on Xiaomi
Users often complain that after transferring applications, the phone starts to work slower. This is due to the physical difference in read and write speed between the built-in memory type eMMC or UFS and the memory card microSD. Even the fastest cards are inferior to the internal drive in the speed of random reading of small files, which is critical for launching apps.
Another common problem is the “flashing” of settings after a system update or a phone reset. If the card was formatted as internal memory, the encryption keys are stored on the system. A factory reset removes these keys and renders the card unreadable without a full format, resulting in the loss of all data on it.
- ⚡ Applications may take longer to launch than usual due to the low speed of the SD bus.
- 🔒 Files on the card can only be accessed from that particular smartphone.
- 📉 The lifespan of the memory card is reduced due to active application cache writing.
It is also worth mentioning that some features MIUIsuch as "Second Space" or “App Cloning” may not work correctly with apps installed on an external drive. The system may not see the clone of the application or refuse to create it if the main copy is on the SD card.
⚠️ Attention: The interface and available functions may vary depending on the version of MIUI (12, 13, 14, HyperOS). If you do not find the described items, check for system updates or look for similar settings in the advanced menu.
Alternative solutions and storage optimization
If transferring applications is impossible or leads to unstable operation, it is worth considering alternative methods to free up space. Clearing the cache through the built-in Security application allows you to delete gigabytes of temporary files without deleting the apps themselves. Regular cleaning of this section should become a habit for the user.
Using cloud storage, such as Google Drive, Yandex.Disk or Mi Cloud, allows you to upload photos, videos and documents to the Internet, leaving only links to files on the phone. The “Free up space” feature in Google Photos automatically deletes pictures from your device that have already been uploaded to the cloud.
☑️ Weekly memory optimization
In extreme cases, when the internal memory is critically small, and the memory card does not provide the required speed, you can use the function ADB (Android Debug Bridge) for transferring applications via a computer. This method requires connecting the smartphone to the PC and entering special commands, but allows you to move even those applications that are hidden from the standard settings interface.
adb shell pm set-install-location 2This command sets the priority for installing applications on an external drive. However, use ADB requires certain technical training, and any error can lead to disruption of the system. Use this method only if you are confident in your actions and have backed up important data.
The most reliable way to combat low memory is a combination of transferring heavy media files to an SD card and regularly clearing the cache, rather than a bulk transfer of all applications, which can slow down the smartphone.
Frequently asked questions (FAQ)
Is it possible to transfer system applications to a memory card?
Transferring system applications is highly not recommended. This can lead to unstable operation of the phone, errors, and even a “bootlap” (cyclic reboot). The system relies on the high speed of the internal storage for its processes.
Why does the application run slower after the transfer?
The speed of the application depends on the speed of reading data. Memory cards microSD, even modern ones, are significantly inferior to the built-in memory of a smartphone in the speed of random access to files, which causes delays in loading interface elements.
What will happen to applications if you remove the memory card?
Applications will stop launching, and their icons may disappear from the desktop or become inactive. Data saved inside these applications will become inaccessible until the same memory card is reinserted.
How to return a memory card to flash drive mode after formatting for applications?
To do this, go to Settings → Storage, select the memory card and press Format as portable storage. Remember that this action will delete all data from the card, including installed applications.
Does my Redmi support a 1 TB memory card?
Most modern models Xiaomi i Redmi support cards up to 512 GB or 1 TB officially. However, for stable work with such a volume, it is recommended to use cards of a high class of reliability and speed.