Smartphone owners Samsung often face a situation where the built-in storage fills up critically quickly. Modern apps, high-resolution photos, and 4K videos take up gigabytes of space, causing your system to run slower. Fortunately, most models in the Galaxy A i Galaxy Mseries, as well as some flagships of previous years, support the installation of expansion cards microSD. This is a reliable way to free up valuable resources on your main drive without having to delete important memories.
The process of transferring data is not intuitive for all users, since the settings menu may change with the release of new versions of the shell. One UI. Moving files manually through a file manager gives you maximum control over what goes where. However, for multimedia content, there are also automatic configuration methods that allow you to save new pictures directly to external storage, bypassing internal memory.
In this guide, we will examine in detail all the available methods: from manual copying through the standard “My Files” application to changing the camera system settings. You will learn which types of data can be transferred safely and which are better left on the internal drive for stable system operation. We will also touch on the topic of transferring installed applications, since this function has its important limitations in modern versions Android.
Preparing a memory card and checking compatibility
Before you start manipulating files, you need to make sure that your memory card is ready for use and is correctly detected by the device. Not all cards are created equal: recording high-quality video requires a certain speed class. If you insert a slow card into a modern smartphone, the interface may begin to slow down when accessing files, and video recording may be interrupted.
Insert the card microSD into the appropriate slot of your device. Usually it is located in the same tray with SIM card or separately at the end of the case. After installation, the phone should notify you that a new drive is available. If there is no notification, go to Settings → Device maintenance → Storage and check if the map is displayed there. If the system prompts you to format the drive, agree, but remember: this will delete all old data on it.
⚠️ Attention: Formatting a memory card erases all information on it without the possibility recovery. If there are important files on the card, first copy them to your computer.
For optimal work with modern smartphones Samsung it is recommended to use standard UHS-I or UHS-II class cards U3 or V30. Such drives provide a write speed of at least 30 MB/s, which is critical for shooting 4K video. Cheaper class cards Class 10 are only suitable for storing documents and music, but may not cope with streaming large files.
Use memory cards up to 1 TB for maximum compatibility. Although some models support up to 1.5 TB, 1 TB cards are the most stable and time-tested.
Manually transferring files through the My Files application
The most reliable and universal way to move data is to use the built-in file manager. Application "My files" is pre-installed on all smartphones Samsung and provides full access to the directory structure. This method allows you to selectively transfer folders without affecting system files, and control the process at every stage.
Open the application and you will see two main sections: “Internal storage” and “Memory card”. To get started, go to the internal storage. Here you need to find the folders that take up the most space. Usually this is DCIM (photos and videos from the camera), Download (downloads from the browser) and Pictures (screenshots and images from instant messengers).
Select the desired files with a long press. A toolbar will appear at the top of the screen. Click the menu icon (three dots) or the Move button. The system will prompt you to select a destination. Select "Memory Card" and select the specific folder where you want to place the data. You can create a new folder, for example Archive_2026to structure the information.
☑️ Transfer checklist
The process of copying large amounts of data may take time. Do not lock the screen or minimize the application to avoid recording errors. If you interrupt the process in the middle, some files may become corrupted or disappear from both places. Once the operation is complete, check for files in the new location by opening the memory card through the same application.
Use the Move function rather than the Copy function to immediately free up space on your internal memory. Copying will create a duplicate that takes up space on both drives.
Automatically setting up the camera to save to SD
In order not to transfer photos manually every time, you can set your smartphone camera to automatically save new photos directly to the memory card. This function is available in the standard application Camera and greatly simplifies the life of users who take a lot of photographs. The internal memory will remain free for system operation and installation of updates.
Launch the camera application and go to settings by clicking on the gear icon in the corner of the screen. Scroll down the list of options to the Storage Location or Saving section. By default, the value is “Phone”. Change it to SD card. Now all new photos and videos will be recorded directly to external storage.
⚠️ Attention: If you remove the memory card or it fails, new photos will not be saved. The camera may give an error or simply not take a photo.
It is worth noting that some shooting modes, such as Pro, Super Slow-mo or recording video in maximum resolution 8Kcan ignore this setting and save data only to the internal memory. This is because the internal flash memory's write speed is faster and ensures that there is no lag when processing heavy video streams. For regular photos and videos in 1080p or 4K, the setting works flawlessly.
Why doesn’t the 8K mode write to the card?
8K video recording speed reaches hundreds of megabits per second. Most microSD cards, even fast ones, cannot provide a stable flow of data without jerks, so the system forces the use of the internal storage.
Transferring installed applications to a memory card
The issue of transferring the applications themselves (APK) to a memory card is one of the most difficult in the ecosystem. Android. Starting with version Android 6.0, Google has introduced a feature Adoptable Storagethat allows you to format the card as part of the internal memory. However, the company Samsung disabled this feature in its firmware for most regions, fearing a decrease in system performance and reliability.
However, some applications support native porting by the developer. To check this possibility, go to Settings → Applications. Select the desired app from the list. If the developer has allowed the transfer, you will see an active Edit button in the Storage section. By clicking on it, you can select the “Memory card” option.
| Application type | Possibility of transfer | Recommendation |
|---|---|---|
| System applications | Impossible | Leave in internal memory |
| Messengers (WhatsApp, Telegram) | Partially (media only) | Transfer media files manually |
| Games with cache | Depends on the developer | Check in application settings |
| Social networks | Rarely available | Clearing cache more effective than transfer |
If the “Change” button is missing or inactive, it means that the application developer has prohibited installation on external media. This is often done to ensure data security or performance. Attempts to bypass this limitation through developer mode or third-party utilities can lead to unstable operation of applications and their frequent crashes.
Features of working with multimedia in the gallery
Application Gallery on smartphones Samsung combines media files from all sources into a single feed. After transferring files to the memory card, they will not disappear from the general view, but their physical location will change. It is important to understand the difference between what is displayed in the gallery and the actual path to the file, especially when trying to edit or share.
Sometimes after a bulk transfer, “broken” thumbnails or duplicate albums may appear in the gallery. This occurs because the system's media scanner has not yet updated the database. To fix this, you can restart the device or clear the application cache Media server in the settings. It is also worth checking whether empty folders with the same name were created in the internal storage after the transfer.
To watch video from the memory card, no additional actions are required, the player will automatically pick up the file. However, if you use third-party video players, make sure they have permission to access your external storage. In new versions Android access rights to the file system have become more strict, and some older applications may simply not “see” the memory card without manually setting the paths.
⚠️ Attention: When deleting a photo from the Gallery after transferring it to the card, the file is deleted permanently. The recycle bin in the gallery is also stored on the drive where the original file is located.
Solving common problems and errors
Users may encounter the “Not enough space” error even when transferring to the card if it is full. Always check the free space before starting the operation. Another common problem is the message that the file is “In use by another application.” This means that some process (for example, indexing or messenger work) is keeping the file open. Close all applications and try again.
If the memory card is detected as “Empty” or “Not Supported”, try removing and inserting it again after turning off the phone. Oxidation of tray contacts can cause loss of connection. Wipe the card contacts with a soft, dry cloth. Also make sure that the card is inserted correctly according to the diagram on the tray.
In rare cases, the file system of the card may become damaged. If your phone prompts you to format the card every time you turn it on, and the data on it is important, try reading it through a card reader on your computer. If the PC also does not see the files, you will need special data recovery software. After saving the information, formatting the card in your phone will be a mandatory step to restore its functionality.
Regularly make backup copies of important data from the memory card to a computer or to the cloud. MicroSD cards are less reliable than the internal memory of the phone and can suddenly fail.
Frequently asked questions (FAQ)
Is it possible to transfer WhatsApp completely to a memory card?
It is impossible to completely transfer the WhatsApp application itself to a memory card, since the developer did not provide this function. However, you can transfer media files (photos, videos, voice messages). To do this, there is no direct button in the settings of the messenger itself; you need to manually move the folder WhatsApp/Media from the internal memory to the card via the file manager. After the transfer, you may need to create a symbolic link, which is difficult for the average user, so it is easier to simply store backup copies of chats in Google Drive.
Will using a memory card slow down your phone?
Yes, using a memory card to launch applications or actively work with files can slow down the device. The read and write speed of microSD cards is significantly lower than that of internal flash memory type UFS 3.1, which is used in modern Samsung. This may manifest itself in longer opening times for heavy photos, slowdown of the interface when viewing the gallery, or longer loading times for games. The card is ideal for storing archived data, but for active tasks it is better to use the internal memory.
What to do if the phone does not see the memory card after transferring files?
First try restarting your smartphone. If this doesn't help, remove the card and reinsert it. Check if the card works on another device or through a card reader on a PC. If the card is detected everywhere except your phone, there may be a problem with the slot or file system incompatibility (for example, the card is formatted in exFAT, and the phone requires FAT32, although modern Samsung supports exFAT). As a last resort, save the data on a PC and format the card directly in the phone settings.
Is it safe to store passwords and personal documents on a memory card?
Storing critical data, such as passport scans, bank documents or password backups, on a memory card is less secure than in internal storage. The card can be easily removed and read on any other device as long as it is not encrypted. The internal memory of modern smartphones is encrypted by default and tied to a specific device. If you do store documents on the card, use Samsung's Secure Folder feature, but note that transferring the Secure Folder itself to the card is not possible.