How to install the application on the SD card on Xiaomi Redmi 9A

Owners of budget smartphones like the Xiaomi Redmi 9A often face a lack of built-in storage.The MIUI operating system by default takes up a significant portion of memory, leaving the user limited space to install games and programs.This leads to constant notifications that the free space is running out, which interferes with the normal operation of the device.

Fortunately, the Redmi 9A features a microSD card slot to expand the available space. However, standard Android settings and MIUI shell don't always allow you to simply transfer the program to an external drive at a single click.

In this article, we will take a look at all the available methods, from the standard system tools to more advanced methods that require a connection to a computer, you will learn which applications can be moved and which will remain in internal memory, and how to turn a flash drive into a full-fledged extension of the phone’s memory.

Preparation of memory card and smartphone for work

Before you start transferring data, you need to properly prepare the external drive. Formatting the memory card will destroy all the data on it, so copy important files to your computer or to the cloud storage beforehand. Using a poor-quality or damaged card can lead to system freeze or data loss, so make sure your MicroSD drive is working.

Put the card in the smartphone turned off or use the hot connection if the device allows. Once the Xiaomi Redmi 9A is turned on, the system will automatically detect a new media. A notification will appear on the screen suggesting that you configure the memory card. Choose the option to use the card as a portable drive if you want to store photos, videos and music on it, or as internal storage if you plan to install applications there.

To install applications, it is recommended to use cards of Class 10 or higher speed class, as well as the UHS-I standard. Slow cards can cause brakes in the work of heavy games and programs. The system itself will suggest formatting the drive into a compatible format, usually exFAT or FAT32.

• 📱 Make sure the memory card is inserted before clicking and is determined by the system.
• 💾 Check the amount of free space on the map through the settings menu.
• ⚡ Use only quality memory cards from trusted manufacturers.
• 🔄 Make a backup of the data before formatting the drive.

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Buy memory cards with a margin of write speed. To install applications, the minimum write speed should be 30 MB / s to avoid lags when running programs.

The standard method of transferring applications to MIUI

The MIUI shell installed on Redmi 9A has built-in application portability restrictions. Not all programs support the roaming function, as it depends on the software developer. However, it is worth trying the standard method, which does not require obtaining superuser rights or connecting to a PC.

Go to your smartphone settings and find the section that manages the applications. Depending on the version of MIUI, the path may be slightly different, but the logic remains the same. You need to find the specific application in the installed list and check if the transfer button is active.

If the app developer has allowed the transfer, you will see an active “Move” or “Change” button with the option to choose from. SD-Otherwise, the system will tell you that the transfer is impossible, which is common with Google's system services and critical system components.

• 🔍 Open the Settings. → Annexes → All applications.
• 📂 Select the desired application from the list.
• 📤 Click on "Memory" or "Storage».
• 🔄 If available, click “Change” and select SD-map.

⚠️ Note: When you transfer the application, some of its data will still remain in the internal memory of the phone.

Adoptable Storage Mode with ADB

For Xiaomi Redmi 9A owners who want to circumvent MIUI restrictions, there is a more powerful method, which involves using USB debugging and ADB command line, which allows the system to force the memory card to be considered part of internal storage, even if the phone developer has prohibited it.

To start, you need to activate the developer mode. Go to Settings → About Phone and quickly click on the MIUI version seven times. After the message “You became a developer” appears, go back to the main settings menu and find “Additional” or “Extended settings”.

In the developer menu, include "Debugging USB." Connect your smartphone to your computer with a cable. The computer must have ADB and Fastboot drivers installed. Open the command line and enter a command to check the connection.

adb devices

Once you confirm the connection, you'll see a request for debugging permission on your phone screen. Press "Allow" and then type a command to put the card into internal storage mode.

adb shell sm partition sdcard:64,0 mixed

The 64.0 figure means that 64 percent of the card will be given to apps, and the rest will be left to files. Be careful, this operation will format the card completely.

• 💻 Install Android platform tools SDK PC-only.
• 🔌 Use the original. USB-stable-connection.
• 📱 Allow debugging on the smartphone screen when connected.
• 🗑️ Remember that after this operation, the card will only be read on this phone.

Comparison of data storage methods on Redmi 9A

Choosing a storage method directly affects the performance of your Redmi 9A. The internal memory of the smartphone is faster than even the fastest MicroSD card. By transferring applications to an external drive, you may encounter an increase in program load time.

On the other hand, releasing internal memory is critical to the stability of the system. If the internal storage is more than 90% full, the smartphone will start to work slowly, regardless of the power of the processor.

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The optimal strategy is to keep heavy games and frequently used messengers in internal memory, and transfer media files and rarely used programs to the internal memory. SD-map.

Transfer of media files and application cache

Even if you can't migrate the app itself, you can often move its data. Many programs, such as Telegram or WhatsApp messengers, allow you to change the way you save downloaded files in your settings, which saves space in Xiaomi's internal storage.

For Telegram, go to Settings → Data and memory → Memory use. You can choose "Save to the gallery" or point the way to the gallery. SD-map if the application supports external paths in your version of Android. In some cases, you need to use file managers with path redirection.

Photos and videos taken on camera are stored in internal memory by default. Change this behavior by opening the Camera app by clicking on three bars in the corner and selecting settings. SD-And you can activate it. It automatically sends all the new images to the external drive.

⚠️ Note: When removing the application, the data of which was on SD-The files may remain as junk, periodically check the card for orphan files and manually delete them.

Use the built-in cleaning utility in MIUI or third-party file managers like Total Commander or Files by Google to help you find duplicates and large files that can be safely moved or deleted.

Possible problems and solutions

There may be errors in the setup process, such as a smartphone may stop seeing the memory card after rebooting, which often happens if the card was retrieved without first unmounting in the system. Always use the "Extract" function in the settings before physically retrieving the card.

Another common problem is that the interface is slow after the application is transferred, which indicates a slow memory card write rate, so it is better to return the application to internal memory, replacing it with a lower weight or less demanding analogue.

If the system writes "Formatting error," try formatting the card on your computer in exFAT format with the default cluster size, sometimes using a different card reader or repeating the formatting procedure directly on your phone helps.

• 🛑 Do not remove the card while the applications are running.
• 🧹 Regularly clean the cache of transferred applications.
• 📉 Keep an eye on the temperature of your phone while working with SD.
• 🔄 If you fail, try rewiring the map through the settings.

Frequently Asked Questions (FAQ)