Owners of budget smartphones like the Xiaomi Redmi 7A often face an acute shortage of internal memory. Standard 16 or 32 gigabytes are catastrophically short for installing modern applications that are overgrown with gigabytes of cache and updates. The system starts to run slowly, and notifications of storage overflow appear every day.
Fortunately, there is an effective solution to this problem, which is to migrate data to an external drive, and unlike older versions of Android, modern MIUI shells hide this feature, but it can be activated, and you don't need complex software or a personal computer connection to perform this procedure.
In this article, we will discuss how to turn a regular flash card into a full-fledged extension of system memory. We will look at the safe methods of setting up Adoptable Storage and workarounds for installing programs directly on the system. SD-card without root rights.
Preparation of the device and choice of the drive
Before you start manipulating the file system, you need to make sure that the equipment is suitable. Not every memory card will work as a system partition. Using a slow drive will cause the smartphone to start working even slower than before the transfer.
It is recommended to use cards of the standard Class 10 or higher, preferably with the marking UHS-I. The volume of the card should be greater than the volume of internal memory of the phone for the correct operation of the combination mechanism.
⚠️ Note: The formatting process will completely destroy all files on the memory card.Save photos and documents to the cloud service or other media before starting.
Put the card in the slot and wait for the system to determine it. Go to the storage settings to make sure the phone sees the new volume. If the card is displayed as Portable Storage, it will need to be reconfigured.
Activation of Developer Mode to Access Functions
To manage hidden Android features on Redmi 7A, you will need access to a developer menu, a standard procedure that requires no special knowledge, and activating this mode allows you to debug over USB and other system settings.
Find the "About Phone" item in the settings and start quickly clicking on the "Version" line. MIUI". After seven taps, the system will tell you that you have become a developer.
In the Developer menu, find the USB Debugging option and activate it, which is the resolution required to execute commands through the terminal that we'll use to emulate application porting, and without this step, you can't do anything further.
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If the "For Developers" item is missing after the reboot, just repeat the procedure of clicking on the MIUI version - the settings are reset, but the data remains.
Use of the terminal for transfer emulation
Because there's often no regular application port menu in MIUI, we use terminal emulation, which allows you to send commands to the system directly, mimicking actions that are normally performed through a computer, and you'll need an emulator app that's available in the store.
Run the terminal and type a command to get superuser rights, if any, or work in user mode to view the structure. The main tool is the pm (package manager) utility, which allows you to manage the installation and movement of packets.
To force a specific application to be moved, use the pm move-package command. First, you need to know the packet ID, for example, com.example.app. Then you run a command to move to the external drive ID.
pm move-package com.example.app externalThis method doesn't work for all applications; some system programs are protected from being moved by developers; however, for custom software, such as social media or games, it often works.
☑️ Pre-transfer check
Adoptable Storage is available through ADB Shell
A deeper method that does not require a computer involves using wireless debugging or a local emulator to enter commands. ADB. The purpose of the method is to make the system count SD-This is called an Adoptable Storage.
You need to find the disk ID in the terminal. Enter the sm list-disks command. The system will give you a response in disk:179.64 (numbers may differ), which is critical for the next command.
Next, the command to format the card as internal memory: sm partition disk:179.64 private. Once it is executed, the phone can restart, the system will encrypt the card and create a file structure on it that is identical to internal memory.
| Team team. | Description of action | The result |
|---|---|---|
| sm list-disks | Search for connected drives | Disk ID output (e.g., disk:179.64) |
| sm partition ... private | Formatting into internal memory | The map becomes part of the system |
| sm set-force-adoptable true | Forced transfer authorization | The "Transfer" button appears in the settings |
Once these steps are successfully completed, the storage settings will allow you to migrate data, and the system will decide which files and caches to move to the new volume, which is the most reliable way for the Xiaomi Redmi 7A.
What to do if the team is not executed?
Manual management of files and application cache
If you can't automatically port it to a particular program, you can try to manually transfer it, and many applications can change the way you save your downloaded files to your internal settings, and this is true for messengers and navigators.
Use a file manager with permissions to access system folders. /Android/data/. It's a place where you store heavy files of games and programs, and moving those folders to a map can free up gigabytes of space.
But be careful: simply moving folders can disrupt applications. Some programs require symbolic linking, which is impossible without root rights. In such cases, it is better to use the "Clear Cache" function in the application settings.
For photos and music, use the "Move to" function. SD-A standard gallery map is a regular mechanism that securely transfers media files, freeing up the main storage for the system to work.
Possible problems and ways to solve them
In the process of memory optimization, Redmi 7A users may experience unstable device operation. If the phone started to freeze after transferring applications, it may not be enough to write the card for the operating system.
A common mistake is trying to migrate Google system components or MIUI services, which can lead to a cyclical reboot, and if this happens, you need to remove the memory card when the phone is turned off and turn the device on again.
⚠️ Note: Do not remove the memory card if it is formatted as internal storage without first transferring the data back.
Also, keep in mind that updating apps through the store can temporarily take up space in internal memory, even if the app itself is on the map. Always leave at least 500MB of free space for temporary files.
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The speed of the memory card directly affects the performance of transferred applications - you can not save on the class of the card.
Optimization of the system after the transfer
Once the data is successfully transferred, it is recommended that you reboot the device, which will allow the system to re-index the files and interact correctly with the new storage configuration, and check all the important applications.
Pay attention to the battery consumption. SD-The card may consume more energy than the internal memory. Monitor the statistics in the Battery section in the first days of use.
Check card status regularly through settings. File system on external drives is more prone to errors. Periodic backup of important data is now even more relevant.
Using a memory card allows you to significantly extend the life of Xiaomi Redmi 7A, turning a budget device into a convenient tool for everyday tasks.