How to transfer applications to a memory card on Xiaomi Redmi 9A

Owners of budget smartphones like the Xiaomi Redmi 9A often face a shortage of space. Built-in storage of 32 or 64 gigabytes is quickly filled with system files, photos and, most critically, modern applications. When memory is full, the device starts to run slower, and notifications of space shortages appear at the most inopportune moment, and it is at these moments that users think about how to transfer applications to the memory card to unload the main drive.

Unfortunately, the MIUI shell that is installed on smartphones of this brand does not provide the standard function of transferring programs to an external drive “one button”. However, there are proven methods to circumvent this limitation. You can use the microSD card as a full extension of internal memory or use it to store media files, freeing up space for programs. In this article, we will discuss all the available methods, their pros and cons, as well as the nuances of working with the Android file system.

Before you start moving, you need to understand that not all applications support portability. System components and some banking programs may not work correctly or even refuse to move at all. However, games and social networks can often be successfully moved, which will give you a few gigabytes of free space. Let's look at how to prepare the device and what method will suit you.

The process of optimizing storage requires attention, but it is worth it: you can forget about the constant reports of space shortages and enjoy the quick operation of the interface. It is important to choose the right approach so that you do not lose important data and do not disrupt the system. Below we will discuss the preparatory steps and technical details that you need to know before starting the procedure.

Preparation for memory expansion and card selection

The first and most important step is to choose a quality storage device. Don't buy cheap cards from unknown brands, because they have low write and read speeds. High performance is required to work as an internal memory extension, otherwise your Redmi 9A will slow even more than with crowded built-in storage. The best choice will be Class 10, UHS-I or higher cards from manufacturers like Samsung, SanDisk or Kingston.

After you buy, you need to insert the card into the smartphone slot. Make sure the device is turned off or use the hot replacement function if it is active. After turning on the phone, go to the settings menu. You need to find the section responsible for storage. The path usually looks like: Settings → About the phone → Storage or through Settings → Advanced Settings. The system should identify the new media and suggest it be formatted.

Attention! Formatting will completely delete all data that may already be on the map. If there are important photos or documents on the flash drive, pre-copy them to a computer or to the cloud storage, after formatting, it will be impossible to restore data using standard means.

• 📱 Choose a 32 to 128GB card for optimal Redmi experience 9A.
• ⚡ Pay attention to the speed marking: look for the icon «10» circled «U1/U3».
• 💾 Keep backups of important files before any memory operations begin.
• 🔍 Check the card for errors with the utility SD Card Tester on PC.

Android formatting creates a new file system, usually FAT32 or exFAT, that is adapted to work with mobile devices. This process also checks the drive for broken sectors. If there is a formatting error, the card may be defective or incompatible with your smartphone's memory controller, in which case it is better to replace the media to avoid future data loss.

Use of the card as internal memory (Adoptable Storage)

The most effective way to address this space shortage is with Adoptable Storage, which allows the system to perceive the external card as part of the internal storage, which unfortunately is often hidden by developers in standard Xiaomi firmware, but it can be activated through special commands if you are willing to act carefully, which makes the card unreadable for other devices without losing data, since it is encrypted by binding to a particular smartphone.

To activate this feature, you will need to enable USB debugging mode. Go to Settings → About Phone and quickly click on MIUI Version seven times. After you become a developer, go to Advanced Settings → For developers. Find and activate the USB Debugging Switch. You will need to connect to your computer and use the ADB platform (Android Debug Bridge).

Once you connect your smartphone to your PC, open the command line in the ADB tool folder. You need to enter a command to find the device to make sure the connection is correct. If it goes well, you will see the serial number of your Redmi 9A. The next step is to enter a command to force portability to be enabled. This action does not require root rights, but requires input accuracy.

⚠️ Attention: Use ADB-If the memory card is poor, if the phone starts to freeze, return the settings to their original state through the developer menu.

The command to be entered is as follows:

adb shell pm setInstallLocation 2

This command tells the system that external storage is the preferred place to install new applications. However, Adoptable Storage often requires deeper integration to work, which Xiaomi may not be able to do without unlocking the bootloader. In most cases, users are limited to changing the default write path, which also yields results, but is less radical.

Application portability by standard MIUI tools

If you don't want to use complex methods with ADB, you can try the standard shell functionality. Some versions of MIUI have the ability to move individual applications if they support this function. Go to Settings → Applications → All applications. Select the program from the list you want to move. If portability is possible, the Change or Memory button will be active, and you can select the Memory Map option.

It’s worth noting that after upgrading to the latest Android versions, this feature has been blocked in many apps by the developers themselves, arguing that the speed of memory cards can be lower than that of the built-in flash drive, which leads to lags. So don’t be surprised if the portability option is missing or inactive (gray) in the app management menu.

However, for some games and simple utilities, this method works perfectly: you can free up to 500MB – 1GB on each application by moving its cache and data files to an external medium, which is especially true for heavy games that occupy a significant part of the system partition.

Remember that even if an application is moved, some of its files may remain in internal memory. This is normal for Android. The main body of the program will be on the map, but the system libraries will remain in place for stability.

Setup of storage of multimedia and cache

The easiest and safest way to free up space is to redirect the saving of photos, videos and downloads to a memory card. You don't have to be an expert. Open the Camera app, click three bars in the corner of the screen to log in to settings. SD-map" or "Memory" and switch the switch to the active position. Now all new pictures will take up space on the flash drive.

Similar actions are worth doing in popular messengers. On Telegram, go to Settings → Data and Memory → Save Path and specify a memory card. On WhatsApp, this feature often turns on automatically when a card is detected, but it is better to check in Settings → Chats → Backup Chats, although it stores copies in the cloud, and media files can be transferred through the file manager manually.

💡

Use Google’s Files app or Xiaomi’s standard Explorer to packetly move DCIM, Download and Pictures folders to a memory card, freeing up gigabytes of space without risk to the system.

Also worth checking your browser settings. If you download files from the Internet often, change the download path in the Chrome or MI Browser settings.This will prevent the internal clipboard from filling up quickly. Regularly cleaning the Download folder is also a good habit for maintaining order in the file system.

Remember that the speed of the memory card affects the speed of opening the gallery. If you notice that photos open long after transfer, perhaps the card has a low speed class, in which case you should consider buying a more productive media labeled A1 or A2, which are optimized for working with applications.

Third-party utilities for memory management

When standard tools aren't enough, specialized applications from Google Play come to the rescue, programs like App2SD, Files by Google, or SD Maid allow for analyzed space and data transfer, but without root rights, these applications can only move user files, not the programs themselves.

Applications with function «Link2SD» Requires the existence of a superuser (Root) rights to Redmi. 9A It is possible, but it will cancel the warranty and may disrupt the work of banking applications (Mi Pay, Google Pay will stop working without additional tricks.

• 🧹 Clean Master – helps to make room quickly, but contains a lot of advertising.

Use of third-party software should be careful: some "accelerators" and "cleaners" consume a lot of resources and show intrusive advertising; use time-tested high-rated utilities; always read reviews before installing, so as not to infect the device with malware.

⚠️ Warning: Avoid applications that promise to magically increase memory. You can't physically increase the size of a chip, you can only allocate resources wisely.

Possible problems and ways to solve them

When you use a smartphone with portable applications, you may experience a breakdown, and most often, when you reboot the app icons, they disappear or the programs stop running, if the memory card is not installed before you boot the system, or if the slot contact is broken. Try restarting the device again or resetting the card.

Another common problem is speeding, and if MIUI is twitched and applications are opened longer, then the memory card's writing speed is not enough to run modern programs, in which case the only solution is to return applications to internal memory or replace the flash drive with a faster one.

💡

The stability of the Redmi 9A depends on the quality of the memory card, and cheap drives are the main reason for lags after transferring data.

There may also be errors when updating apps on Google Play. The store may report a space shortage even if the map is full of free space, which is because the app is temporarily copied to internal memory to update it. If there is critically little space (less than 500 MB), the update will not work, in which case you will have to manually delete some programs.

If the memory card is no longer defined, check it on another device. The file system may be damaged. (formatting) the card again through the phone settings often solves the problem, but remember to back up. Regular maintenance and control of free space will help to avoid sudden disruptions in the work of your Xiaomi.