Transferring applications to an SD card in Xiaomi Redmi 9

Smartphone owners Xiaomi Redmi 9 often face a lack of built-in storage, especially if the basic version of the device has only 32 or 64 GB of memory. Full memory leads to system errors, the inability to update apps and a significant slowdown in the interface. Using a memory card format microSD is the most affordable and effective way to solve this problem without buying a new gadget.

In this article we will look in detail at how to properly configure a memory card and transfer custom applications to it. The process does not require obtaining root access, but has its own nuances, depending on the version of the shell MIUI and the type of software being installed. You will learn about the differences between standard transfer and the Adaptive Storage function, which turns the flash drive into part of the system memory.

Preparing a memory card and checking compatibility

Before starting any data manipulation, it is critical to ensure the quality and compatibility of the media. Cheap cards from unknown brands may work unstable, which will lead to data loss or malfunction of the smartphone Redmi 9. It is recommended to use class cards Class 10 or UHS-I from trusted manufacturers such as Samsung, SanDisk or Kingston.

Insert the card into the phone slot and wait for it to be detected by the system. If the device requires formatting, agree to this by first saving all valuable files on your computer. Formatting is necessary to create the correct file system, which is correctly recognized by the shell MIUI. After this procedure, the card will be ready to record data.

⚠️ Attention: Formatting a memory card completely deletes all data from it. Be sure to back up your photos and documents before starting setup.

It is worth considering that read and write speeds directly affect the performance of transferred applications. If you plan to run heavy games from a flash drive, low speed may cause long level loading times and stuttering. You can check the speed of the drive using specialized utilities from the store Google Play.

Activating extended storage mode

In modern versions of Android, including the one installed on Xiaomi Redmi 9, there is a function that allows you to combine internal memory and a microSD card into a single space. This mode is called "Adaptive Storage" or "Internal Memory". Activating it allows the system to automatically decide where to store data, and makes it possible to transfer those applications that cannot be moved using standard methods.

To enable this function, go to the settings section. Navigation may vary slightly depending on the firmware version, but the general algorithm remains unchanged. You will need to find the item responsible for managing storage devices and select the option to change the type of use of the card.

Settings → About phone → Storage → SD card → Settings → Device memory

After selecting the “Device Memory” mode, the system will offer to format the card again, this time for the specific needs of Android. This process may take several minutes. When finished, the smartphone will offer to transfer existing media files to a new drive to free up space on the internal partition.

Standard transfer of applications through settings

The easiest way to move a app is to use the built-in system tools. This method does not work for all applications, since developers may prohibit the installation of their software on external media for security or stability reasons. However, for many utilities, games and social networks, this option is available by default.

Go to the application management menu and select the app you are interested in. In the application information window that opens, find the section regarding memory usage. If the transfer is possible, the button for changing the location will be active.

• 📱 Open Settings and go to the section Applications.
• 📂 Select item Manage applications to view the full list.
• 🚀 Click on the desired application and find the button Move to SD card.

If the button is inactive or missing, this means that the application developer has hard-wired it to the internal storage In this case, standard methods will not be able to solve the problem, and you will have to resort to more complex methods or put up with the internal memory. Some system applications Xiaomi are also protected from transfer.

Using developer mode to force a transfer

If the standard menu does not allow you to move the desired app, you can activate a hidden setting in the developer menu. This function forcibly allows the installation of applications on external media, ignoring the recommendations of software developers. However, it is worth remembering that this may lead to unstable operation of some apps.

First you need to activate the developer menu itself. Go to the phone information and find the “MIUI Version” item. Click on it quickly seven times in a row until a notification appears indicating that you have become a developer. After this, a new section will appear in the main settings.

Parameter	Default value	Required value
Developer menu	Disabled	Enabled
Allow saving to external device. drives	Off	On
Do not destroy activities	Off	Off

In the developer menu, find the item “Allow saving to external drives” and activate it. After enabling this option, restart your smartphone Redmi 9. Now, when you go to the application settings, the transfer button can become active even for those apps that did not previously support this function.

⚠️ Attention: Forced transfer of system utilities or banking applications may cause errors in their operation or a complete failure to launch.

Transferring data of instant messengers and media files

The main place in the smartphone’s memory is often occupied not by the applications themselves, but by their cache and media files. Messengers like Telegram i WhatsApp save thousands of photos and videos to internal memory. Transferring the application itself to the card can free up only a few megabytes, while transferring media files will give gigabytes of free space.

In the settings of most messengers there is a built-in function for changing the path where data is saved. Go to the settings of a specific application, find the “Data and storage” section or similar, and specify the path to the memory card. After this, all new files will be uploaded directly to microSD.

What to do with old files?

Old files downloaded before changing the settings will remain in the internal memory. They need to be moved manually through the file manager, selecting the Android/media or Android/data folders.

To move already accumulated files, use a standard explorer MIUI or a third-party file manager. Select folders with media files, select the “Move” function and specify the corresponding directory on the memory card. Be careful when moving system folders so as not to disrupt the data structure of applications.

Possible problems and ways to solve them

When using a smartphone with transferred applications, users may encounter a number of difficulties. The most common problem is application widgets disappearing from the desktop after transfer. This is due to the fact that the system indexes apps on internal and external drives differently.

The phone may also slow down when accessing data on the card. If you notice that your smartphone starts to slow down when launching transferred games, try returning them to the internal memory or replacing the card with a faster model. Sometimes clearing the cache of transferred applications helps.

• 🐌 Applications take longer to launch than usual - check the speed of the card.
• ❌ "Application not installed" error - the file may be damaged or there is not enough space.
• 👻 Widgets have disappeared from the screen - add them again through the menu widgets.

In rare cases, the system may stop seeing the memory card after a reboot. Check the tightness of the contacts in the slot. If the problem persists, try formatting the card again by selecting the file system FAT32 or exFAT, depending on the storage capacity.

Frequently asked questions (FAQ)

Is it possible to transfer all applications to an SD card in Redmi 9?

No, it is impossible to transfer absolutely all applications. Developers leave system services, desktop widgets and some apps that require high speed access to data only in the internal memory for system stability.

Is it safe to store photos from a bank card in a transferred application?

Storing confidential data on a memory card is less secure than in internal storage, since physical media is easier to remove and read on another device. It is recommended to use cloud storage with encryption for such purposes.

What will happen to applications if you remove the SD card?

If you remove the memory card, all applications transferred to it will no longer run, and their icons may disappear or become inactive. The data from these apps will become unavailable until the card is installed again in the same smartphone.

Will a memory card slow down the phone?

Yes, if the card reading speed is lower than the speed of the phone's internal memory. The internal storage in Redmi 9 works much faster than budget microSD cards, so it is better to leave heavy applications inside.

How to return an application back to the internal memory?

The procedure is similar to transferring to the card: go to Settings → Applications, select the app and press the button Move to internal memory. If the button is inactive, it means that the application is already there or the transfer is blocked.