Owners of budget smartphones often face a lack of built-in storage, which is especially true for the Redmi 7A model with its modest 16 or 32 gigabytes. After installing system updates and basic software package from Xiaomi, the user is only a small part of the free space, which is why the question of how to transfer applications to the SD card Xiaomi Redmi 7A, becomes one of the most popular among owners of this device.
Modern Android operating systems have a complex file management structure, where direct installation of programs on an external drive is often blocked by the manufacturer by default, this is done for the sake of data security and stability of the gadget, but for the end user this creates significant limitations. In this article, we will discuss all available ways to optimize space, including hidden system functions.
You can't expect instant results without preparation, because the procedure requires carefulness and adhering to the sequence of actions. Backing up important data before starting any manipulation of the file system is a prerequisite, neglect of which can lead to loss of photos and documents. Let's take a detailed look at how to turn a regular flash drive into a full-fledged continuation of the internal memory of your smartphone.
Features of the MIUI file system and memory limitations
Operating envelope MIUI, The system is based on the Android system, but has a number of significant differences in resource management. The standard algorithm involves dividing the space into the system partition and the user partition, where all downloaded programs from the Google Play store are installed by default. SD-map in the settings of most applications on Redmi 7A absent or inactive.
This restriction is dictated by Google's security policy, which since Android 6.0 has divided external drives into portable and internal. In portable mode, the card works like a regular flash drive, readable for multimedia, but hidden from installing software. To change this behavior, you need to activate Adoptable Storage mode, which forcibly integrates external media into the system structure.
It is important to understand that the speed of the external drive directly affects the speed of the programs installed on it. If you use a cheap card of low speed class, the application interface can slow down and load more time.
⚠️ Warning: Forced transfer of system applications or critical services to an external medium can lead to unstable phone operation or the occurrence of a cyclical reboot.
Users often wonder why the manufacturer does not make this feature available in the public domain, and the answer lies in the desire to ensure uniform user experience and minimize the number of calls to service centers about a “slow phone”.
Preparation of memory card and smartphone for work
Before you start technical manipulation, you need to properly prepare the equipment. Poor training can nullify all efforts or, worse, damage data. Make sure your Redmi 7A is charged at least 60-70%, as the process of formatting and migrating data is energy-intensive.
The choice of memory card plays a key role in the success of the operation. To install applications, it is recommended to use cards of the standard Class 10 or higher, as well as supporting the UHS-I protocol. Using old cards with low read/write speed will make work with applications unbearable.
The preparation process involves a few critical steps that you can't ignore: first, remove the card from the device if it's already installed, and connect it to your computer to check for errors. If you're planning to use the card for the first time, format it in the FAT32 or exFAT file system via your computer, although the phone will still re-format it.
☑️ Preparation for data portability
After physical training, insert the card into the Redmi 7A slot before the characteristic click. The system should automatically identify the new media and suggest that it be configured. At this stage, do not agree to use it as a portable storage device for now if your ultimate goal is to install applications, as we will need access to hidden settings.
Activate Adoptable Storage Mode via ADB
The most reliable and effective way to force MIUI perceive SD-map as part of internal memory – using debugging bridge ADB (Android Debug Bridge. This method does not require obtaining Root rights, which preserves the warranty on the device and reduces the risk of software failures. You will need a computer with Windows, macOS or Linux and USB-cable.
The first step is to activate the developer menu on the smartphone itself. To do this, go to the settings, select About Phone and quickly click on the MIUI version seven times. After the notification that you have become a developer, go back to the main settings menu and find the "Additional" → "Developers" section.
In the developer menu, find and turn on the USB Debugging switch. When you connect your phone to your computer, you'll see a request for debugging permission on the screen -- be sure to tick Always Allow and confirm the action. Now the device is ready to command from the outside.
adb shell pm set-install-location 2Once you connect your device to your PC and install the drivers, open the command line in the ADB tool folder. Enter a command to check for adb devices. If a device with a serial number appears in the list, the connection is established. Next, you enter a command that changes the priority of installing the applications: adb shell pm set-install-location 2. Number 2 indicates to the system to prefer an external drive.
⚠️ Note: The set-install-location command changes only the preferred installation location for new applications.
There is also a more radical method that completely formats the card for internal memory, but it requires a precise knowledge of the disk ID. ID (for example, disk:179,64) and format with the adb shell sm partition disk:XXX private command. Be careful, this command will completely destroy all data on the flash drive.
Manually moving applications through settings
Once you have successfully activated external memory, or if your application supports standard portability, you can use the built-in MIUI interface. This method is less risky and suitable for carrying individual heavy games or programs that take up a lot of space.
To start, go to the smartphone settings menu and select "Applications" and it shows the full list of installed software, sorted by frequency of use or name, and find the program you want to move in the list and click on it to open the details.
In the menu that opens, look for the memory or storage button. If the app supports portability, it will activate the change or move to SD-Click on it and confirm the action. The system will copy the necessary files and change the links in the registry.
| Type of application | Possibility of transfer | Impact on speed | Recommendation |
|---|---|---|---|
| Social media | Partially. | Average. | Move the cache |
| Offline maps | Tall. | Low. | Recommended |
| System services | No. | Critical. | Don't touch it. |
| Hard games | Depends on the developer. | High. | Only quick cards. |
It is important to note that after the transfer, the application icon remains on the desktop, but its files are now physically on an external medium. If you remove the memory card, the program will stop running, and the system will issue a corresponding warning about the absence of data.
Using third-party software to manage memory
When standard Android and MIUI tools are not effective enough, specialized tools come to the rescue. One of the most popular tools is the Apps2SD app or its counterparts, which allow for more flexibility in managing file layouts, and often have their own mechanisms to bypass system constraints.
The principle of such utilities is to create symbolic links or use special scripts that redirect system requests from internal memory to external storage. Some of them may require superuser rights (Root) to work fully, which can be difficult to obtain on modern versions of MIUI and cancel the warranty.
Risks of using third-party software
When selecting a tool in the Google Play store, pay attention to the date of the last update and user reviews with similar phone models. Outdated software may not correctly display the amount of free space or cause errors when trying to run displaced programs. Always back up before using such tools.
Some utilities offer a "Caching" feature that allows you to transfer only heavy cache files to the map, leaving the application executable code in internal memory. This is a compromise option that allows you to free up space while maintaining high speed download programs. For Redmi 7A with its limited amount of RAM, this approach may be the most optimal.
Typical problems and ways to solve them
When you migrate data, you often encounter a number of errors that may seem fatal, but are often solvable: For example, after you transfer the widget, the app may disappear from the desktop or stop updating, in which case you can try to remove the widget and add it again from the system widget menu.
Another common problem is the message "Application not installed" or "Syntax error" when you try to install on a map, which often indicates that the file system of the card is damaged or it is formatted in an incompatible format. Try formatting the card again directly through the phone settings.
⚠️ Note: If the phone started to work much slower after transferring applications, try returning the most commonly used programs to internal memory. SD-cards are always below the speed of the built-in flash module.
It happens that the system stops seeing the memory card after rebooting if the applications have been moved to it. This can be due to driver conflict or poor contact in the slot. Remove the card, wipe the contacts with a pin and paste back before the click. If the problem persists, the card may have failed due to intensive recording.
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To prolong the life of the memory card with active use of applications, it is recommended to connect it to the computer every six months and check for errors using standard Windows tools.
Optimization of the smartphone after the transfer
After successfully migrating some applications to an external drive, it is recommended to perform a general optimization of the system. Delete unnecessary temporary files that may have remained in the old directories.
Make sure that the memory card is not full. For stable operation of the ext4 or FAT32 file system, you need to leave at least 10-15% of free space. If the card is filled to the end, this can lead to brakes throughout the smartphone interface, since the system will not place temporary files.
Check the installed list regularly, and over time, software that you have stopped using accumulates, and removing it frees up space and reduces the CPU load, which is especially important for low-end devices like the Redmi 7A.
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Properly distributing data between internal and external memory allows you to extend the life of a budget smartphone and avoid constant reporting of space shortages.