How to switch to SD card Xiaomi Redmi 9A: the complete guide

Budget smartphone owners often face a lack of built-in storage, and the Redmi 9A is no exception. Standard storage of 32 or 64 GB may not be enough to install all the necessary applications, photos and videos. Fortunately, the device design allows you to expand the available space with a microSD card. This solution helps to free up the system partition and avoid a critical slowdown of the operating system.

Translating data and configuring an external drive requires care, as wrong actions can lead to file loss. In this article, we will discuss in detail how to properly prepare a card, install it in a slot and configure applications. You will learn about the intricacies of the file system and the features of the MIUI shell that affect the stability of data storage.

Before you start manipulating, it's important to understand the difference between moving media and moving applications. Not all programs support external media for security and performance reasons. SD-The card is a full extension of internal memory for most user tasks.

Preparation of memory card and compatibility check

The first step is to choose the right drive, as its characteristics depend on the speed of the entire smartphone. Xiaomi Redmi 9A recommended to use cards format microSDHC or microSDXC up to 512 GB, although officially stated support for up to 256 GB. Using too slow cards class below 10 can lead to the fact that the camera will shoot video with delays, and applications will be loaded for a long time.

Before installing the device, it is highly advisable to check the card for errors with the computer, which will help to avoid a situation where the phone does not see files or suddenly restarts when accessing the gallery. If the drive is new, formatting will still be required, but by the means of the smartphone itself to create the correct partition structure.

Pay attention to the status of the contacts of the card and tray SIM-Dust or oxidation can disrupt the connection, causing a permanent display of a notification of damage to the drive.Wash the contacts with dry soft cloth before inserting them into the device.

Physical installation of microSD in the device slot

The process of installing the drive in Redmi 9A It doesn't require any special tools, except for the standard paper clip that comes with the kit. SIM-The card is located on the lower end of the case and is combined with a slot for the memory card. Carefully remove the tray, taking care not to damage the mechanism.

Place the memory card in its intended location, keeping the notch shape, it should fit tightly to the plastic base of the tray, then gently insert the tray back into the phone before the characteristic click, turn on the device and wait for the operating system to fully load.

⚠️ Warning: Never try to remove the tray SIM-cards while the phone is on, if you are actively recording data or running applications from the memory card at that time.

Once turned on, the smartphone should automatically identify a new drive. On the screen, a notification will appear that a new one has been discovered. SD-The system will offer several use cases, but for full operation, it is better to immediately go to the settings for manual configuration.

Formatting the drive through MIUI settings

For a phone to write data to an external medium, it needs to be formatted into a compatible file system. Android typically uses FAT32 or exFAT for external drives. The formatting process will completely clear the card, so make sure it doesn't have important data on it, or pre-copy it to your computer.

Go to the settings menu, look for the About Phone or Storage section that shows the occupied space information. SD-You can use the map, and select "Format" and the system will warn you that all data will be destroyed and request confirmation.

Some versions of MIUI have the option to use as internal storage, which encrypts the card and links it to a particular device, and then you can't read the card data on another phone or computer without resetting, and decide in advance whether you need this level of integration or a portable drive.

Transfer of photos and videos to external media

The easiest way to free up space is to reconfigure the camera to save pictures immediately on the camera. SD-Open the Camera app, click on the settings menu (three bars or gears) and find the Save to SD-Activate this switch, and all new photos and videos will automatically be recorded to an external storage.

For existing files, there is no automatic transfer in the gallery, you need to do it manually through the file manager. Open the standard Explorer application, find the DCIM or Pictures folder in internal memory. Select the files or folders you want and select Move or Copy.

Specify as destination-path root directory SD-You can create a new folder with a clear name, and copying a large volume of video files can take time, during which it is not recommended to run heavy applications, so as not to load the processor.

After the transfer, check if the files are opened from a new location. If the images are displayed correctly, you can delete the originals from the internal memory to really free up space for the system to work.

Setting up WhatsApp and messengers

Messengers are among the main memory consumers, saving the history of correspondence and media files. On WhatsApp, the storage settings are located inside the application itself. Go to Settings → Chats → Storage and Data. Here you can find the option “Media Visibility”, but changing the save path will require a deeper setup.

Unfortunately, modern versions of Android limit the direct transfer of the database messengers to the Internet. SD-You can set up automatic upload of media files or archive chats regularly. To do this, select “Backup” in the chat settings and specify Google Drive or local storage on the map if the application allows you to choose a path manually through the system dialogue.

Telegram is a little easier: in the Data and Memory → Memory Use section, you can clear the cache, and in the download settings, specify a path to save files if the system provides such a choice. Regularly cleaning the messenger cache is an effective way to keep the Redmi 9A running.

Application transfer and memory work

The issue of porting the applications themselves (APK) Since version 6.0, Google has introduced Adoptable Storage, but manufacturers including Xiaomi often hide or disable it in budget models to ensure stability. If there is no button in the application settings “Move to” SD-The card, therefore, the developer has banned this action.

However, some of the application files, such as cache and additional resources (such as maps in the navigator or textures in games), can be moved. To do this, select the desired program from the Apps menu, go to Storage and see what actions are available. If the transfer button is active, the system will move the data itself.

⚠️ Note: Do not use third-party programs to “force” transfer applications without litigation in the consequences.This can disrupt the update system and lead to instability of the launch of programs.

For games with a lot of data (more than 1 GB), it is often possible to point the path to the cache files when you first start. Follow the instructions on the game screen, choosing external storage. This will significantly relieve the system partition, which is critical for the operation of MIUI.

Solving and diagnosing errors

Sometimes users are faced with a situation where the phone stops seeing the card or gives a formatting error. First of all, try to reboot the device. If the problem does not disappear, remove the card, wipe the contacts and insert again. SIM-The cards are sealed and sealed.

If the card is detected but the files are not readable, the file system may be damaged. Try formatting the card again via your computer by selecting the FAT32 file system (for cards up to 32 GB) or exFAT (for cards up to 64 GB).

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Use the memory card only to store files, not to install system widgets or live wallpaper that constantly access the disk.

In case of constant failures, check the card for broken sectors using the H2testw utility on the PC. If the program shows write errors, the card must be replaced, as it is physically defective and can damage data at any time.

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Regular backup of data from SD-Cards to your computer or cloud are the only way to ensure the safety of photos when the drive fails.

Frequently Asked Questions (FAQ)