Transfer data to memory card in Xiaomi Redmi 7A: Full instruction

Xiaomi Redmi 7A has become one of the most popular budget devices on the market, but its internal memory of 16 or 32 GB is often not enough for modern users. Installing a large number of applications, accumulating high-resolution photos and downloading video files quickly lead to overflow of system storage. When the free space runs out, the operating system starts to run slower, and new applications stop installing, which requires immediate intervention.

The solution is to use a microSD memory card, which allows you to significantly expand the available storage space for multimedia and some programs. Unlike more complex flashing procedures, this method is safe and does not require special technical skills, but requires the right approach to formatting and distributing files.

In this guide, we will discuss in detail all stages of preparation, installation and configuration. SD-cards specifically for the Redmi model 7A. You will learn how to avoid common formatting errors, which files should be transferred first, and how to set up automatic recording of new data on an external medium. Compliance with the correct algorithms of actions guarantees the safety of your personal data and the stable operation of the device in the long run.

Preparation of memory card and smartphone for work

Before you start any manipulation of the file system, you need to make sure that the memory card used is compatible with the specifications of your device. Redmi 7A supports drives up to 256 GB, however, for comfortable work, it is recommended to choose cards of class speed 10 or higher, marked as UHS-I. Using too slow cards can lead to delays when opening photos or hanging videos, even if the memory is sufficient.

It is also important to check the physical status of contacts on the memory card and smartphone tray.The presence of oxides or dust can lead to read errors, which the system often interprets as damage to the file system. If the card has been previously used in other devices, such as digital cameras or old phones, it is better to pre-clean it of unnecessary files on the computer.

⚠️ Warning: Before removing or installing a memory card, be sure to turn off your smartphone. SIM-microSD and cards in the Redmi tray 7A can cause software failure or damage to the file table of the drive.

Make sure your smartphone battery is at least 40-50%, formatting and initially copying large amounts of data is energy-intensive, and suddenly turning off power when you write system files can make the card unreadable, and then you will need special software to recover.

💡

Use the original tray that comes with the Redmi 7A. Third-party trays may not provide tight fit of contacts, which will lead to periodic disappearance of the card from the system.

Proper installation and primary formatting

After physically installing the card in the tray and turning on the smartphone, the Android system will automatically detect a new drive. In the notification on the screen, you will be prompted to configure the storage, but for full control of the process, you should go to the settings menu manually. Navigation is carried out through the Settings path → About phone → Storage or directly through the Storage item in the main menu of parameters.

The system will offer two uses: as a portable storage or as internal memory. For the Redmi 7A with its modest volume of built-in storage, it is most advisable to choose the option of Internal storage (if the Android version allows), or carefully configure the portable one. When choosing internal storage, the card is formatted to an ext4 or f2fs file system, encrypted and becomes unreadable on other devices without re-unlocking.

During the formatting process, the system will create the hidden partitions necessary for the applications to work correctly, which is strictly forbidden, as this may lead to the need for a complete flashing of the device.

⚠️ Note: Formatting a map completely destroys all data on it. Make sure it doesn't have important documents that you haven't saved to the cloud or to your computer.

Manual transfer of multimedia files

The easiest and safest way to free up space is to transfer personal files: photos, videos and music. To do this, open the standard File Manager Explorer (or File Manager), which is preinstalled in the MIUI shell. In the program interface, you will see a division into categories where the DCIM folder usually contains all the photos from the camera, and the MIUI folder contains screenshots and recordings of the recorder.

Select the files or entire folders you want by holding your finger on one of the items before the highlight menu appears. After selecting, click the More button or the menu icon (three dots) and select Move action. Don't use the Copy function if your goal is to free up space, as this will create duplicate files that occupy double the volume.

As a target directory, please indicate your SD-map (often referred to as SD Card or External Storage: It is recommended to create a clear folder structure, for example, in the case of a card, Photos_2023 or Videos_Archive, After the process of moving, make sure that the files are opened from a new location, and only then delete the originals if they are left in internal memory.

Special attention should be paid to instant messengers such as WhatsApp and Telegram, which often take up gigabytes of space, and in the settings of these applications, you can specify the way to save the received media files directly to the memory card, which will eliminate the need for manual transfer in the future.

Transfer and installation of applications to an external drive

With modern versions of Android and the MIUI shell, the ability to fully port applications to a memory card is limited to developers for security and stability reasons. However, for Redmi 7A, it is possible to move some of these applications if they support this feature. Go to Settings → Applications → All applications, select the desired program and find Memory.

If the button is changed or moved to SD-The card is active, you can transfer the bulk of the application data, and this is especially true for heavy gaming and social networks, which can grow to several gigabytes. If the button is missing or inactive, then the app developer has banned its installation on external drives.

• 📱 Social media (VK, Telegram often allows cache transfer, freeing up internal memory.
• 🎮 Heavy gaming may require the transfer of additional data files (OBB-files) manually through a conductor.
• ⚙️ Google system applications and Xiaomi services cannot be ported, this will lead to unstable work.

There is also a Smart Storage feature in some versions of MIUI that automatically transfers new photos and videos to the card if installed. Check if this option is available in the camera or gallery settings to automate the process.

💡

Not all apps can be migrated to a memory card, but it's an Android security limitation that you can't get around without root rights and complex system modifications.

Camera setup and automatic saving

To prevent internal memory from filling up with new shots, you need to change the default settings for the camera. Open the Camera app, click on the menu icon (three bars) in the upper right corner and select Settings. Find the Save to SD-map and activate it.

Once this option is enabled, all new photos, videos and portraits will automatically be saved to an external drive, which is critical for users who are actively shooting high-resolution videos, as one minute of recording can take hundreds of megabytes.

It's also worth checking the voice recorder and screenshot settings. In some versions of MIUI, the way you save screenshots can be changed through the conductor or special section settings in the gallery, and automating these processes will allow you to forget about the problem of space shortage for a long time.

⚠️ Note: When using a low-speed memory card (below Class 10) in video mode 4K or 1080p 60fps There may be frame gaps or recording stops due to low recording speed.

If you plan to use your smartphone to capture important events, make sure there is enough free space on the map.Covering the map during recording will cause the video file to break, and it will be extremely difficult to restore it.

Optimization of operation and maintenance of storage

After transferring data and setting up the system, it is recommended to optimize the operation of the drive. Periodically check the card for errors through the Settings menu. → Warehouse → SD-map → Storage settings → Format (choose check if available, or just keep track of the status) The file system can become fragmented over time, which reduces read speed.

Use the built-in cleaning tools in the Xiaomi Security app. The scanner will find residual files, cache and duplicates that may have formed during the data transfer. Regular cleaning of junk files extends the life of both internal memory and microSD cards.

Keep a watch on the temperature of your device while you're working with files. Write or read a lot of data can heat up your memory controller. If your smartphone starts to warm, let it cool down before you keep going.

As an alternative to physical file transfer, consider using cloud services like Google Photos or Mi Cloud. Auto sync settings will allow you to store the originals in the cloud, leaving only thumbnails on the device, saving space without losing access to the archive.