Budget smartphone owners often face a lack of built-in space, which is especially true for the Redmi 7A model with its modest 16 or 32 gigabytes of internal memory. Android and pre-installed MIUI services occupy a significant part of this volume, leaving the user with minimal space to install new programs. The solution lies in the competent use of external storage, but the standard functionality of the operating system often limits the portability.
In this article, we will take a look at all the available methods for extending the functionality of the storage, from basic configuration of the map to advanced technical manipulations. You will learn why not all programs can be moved by standard means, and what workarounds exist to overcome the limitations of the manufacturer.
Before you start active, you need to make sure the quality of the drive used, as the speed of reading and writing directly affects the speed of the interface. Cheap memory cards can cause freezes and slow loading Xiaomi Redmi 7A, negating all efforts to optimize. We will consider the criteria for choosing a reliable media and how to verify its authenticity before starting work.
Preparation of memory card and formatting
The first step in the storage process is to properly prepare the external drive, insert the microSD card into your device slot and wait for the system to notify you of the connection of new hardware. Modern versions of the MIUI shell will automatically offer to configure the drive, but you will need to choose a specific mode of operation to install the applications.
In the settings menu go to the Settings section → The phone. → Storage and find the item responsible for management SD-So here you'll be presented with two options: storing media files or using it as internal storage. The second option, often called Adoptable Storage, allows the system to consider the card as part of the system partition.
⚠️ Note: When formatting a card as an internal storage, all data on it will be irretrievably deleted, so back up important files in advance.
The formatting process can take anywhere from minutes to half an hour depending on the storage volume and speed, during which the system creates an encrypted partition tied specifically to your smartphone, making the card unreadable on other devices without re-formatting.
☑️ Preparation for formatting
Standard Application Transfer through Settings
Once formatted and configured successfully, the system allows you to move some installed programs. Go to Settings → Applications → All applications and select the program you want to move. If the developer has not banned this feature, you will see an active “Move” or “Change” button in the storage section.
It should be understood that not all utilities are portable: System components, desktop widgets and some heavy games often remain on the built-in disk to ensure stable operation of the operating system.Moved applications will run slower than internal memory, due to the slower speed of reading data from the microSD card.
For mass data management, you can use an integrated cleaner or third-party file managers that support work with system directories. However, standard MIUI tools will not completely free internal memory, since part of the cache and databases will still be stored on the main drive.
| Type of data | Can we move it? | Where stored by default | Impact on speed |
|---|---|---|---|
| Photos and videos | Yes. | DCIM / Pictures | Minimum |
| Cash messengers | Partially. | Android / Data | Average. |
| Game files (OBB) | Yes (manually) | Android / OBB | High. |
| System libraries | No. | System Partition | Critical |
Use of Adoptable Storage Mode
The mode in which the external card becomes a full-fledged extension of internal memory is called Adoptable Storage. Unlike simple file transfer, this method allows you to install new applications immediately on the memory card, bypassing the filling of the internal drive. Activate this function on Redmi 7A You can only use the engineering menu or special commands.
To enable the mode will need to activate debugging USB and use a computer with an installed tool ADB. After connecting your smartphone to your PC, run the command adb shell sm list-disks to find out your card ID. Then use the command adb shell sm partition. disk:179,64 private, where the numbers may differ depending on the drive model.
Once the commands are successfully executed, the phone will suggest formatting the card. Select the option "Use as internal storage." Now the system will automatically distribute the load, installing new programs where there is free space, this is the most effective way to combat the lack of space on budget devices.
⚠️ Warning: Removing the memory card in this mode without pre-unmounting in the settings can cause a phone settings reset or app data loss.
Cache transfer of games and heavy files
A significant portion of the memory is used in game cache files and social media content, and manually moving Android/obb and Android/data folders to an external card can free up gigabytes of space, using a file manager with permission to access system folders or connecting your phone to your computer in file transfer mode.
Create exact copies of folder structure on the memory card if they are not already created by the system, and move the contents of the corresponding directories. Some games may require re-checking files at launch, but the data will be saved. This method is especially effective for Redmi 7A owners who actively play modern mobile games.
Cache nuances
Regularly cleaning up download folders and temporary files also helps maintain order. Set up automatic downloads of media files in messengers immediately on the Internet. SD-So that they don't take up precious interior space, and on Telegram and WhatsApp, these settings are in the Data and Storage section».
Problems and possible errors in the transfer
During operation, users may experience read errors or the sudden disappearance of application icons, often due to poor quality memory cards or physical wear «SD-The card is damaged, try to format it again, saving the data beforehand.
Another common problem is desynchronization of data after a system update. After a major update, MIUI may require re-authorization in some applications whose data has been transferred to an external medium.
If apps are unstable or crash frequently, try returning them to the internal drive. The random read speed of cheap memory cards can be many times lower than that of the built-in flash chip, causing interface lags and long downloads.
💡
Use UHS-I or higher speed memory cards from trusted brands (SanDisk, Samsung, Kingston) to minimize the risk of errors and ensure stable application performance.
Alternative methods and use of ADB
For advanced users who do not want to format the card into internal storage mode, there is a method of forced transfer through ADB. The adb shell pm set-install-location 2 command causes the system to default to try to install new applications on an external drive. However, this method does not work with all programs and can be reset after a reboot.
Return to factory settings is done by the adb shell pm set-install-location 0 command. Always check the commands before entering them.
Some users resort to root rights to take full control of the file system, allowing them to move files and even combine memory using software, but on Redmi 7A, this can lead to a loss of warranty and a breakdown of banking applications due to security checks.
Is it safe to use large memory cards?
What to do if your phone doesn’t see your memory card?
Can I transfer the MIUI system to a memory card?
💡
The best solution for Redmi 7A is a combination: transfer media files and game cache to the map, and system applications are better left on internal memory for performance.
To sum up, memory management can significantly extend the comfortable use of a smartphone, and regular monitoring of storage occupancy and timely cleaning of garbage will help avoid many performance problems.