Owners of smartphone series Samsung Galaxy A8 often face a shortage of built-in memory. Modern applications are becoming more and more “heavy”, and games require gigabytes of free cache space. Although built-in storage provides high speed, its volume is limited. Fortunately, the A8 model has a card slot microSD, which allows you to significantly expand the capabilities of the device.
The process of transferring data is not limited to simply copying files. The system Android has its own strict security and architecture rules. You can't just pick up and move system utilities or instant messengers in one click without prior configuration. It is important to understand the difference between transferring media files and full migration executable application files.
In this article we will look in detail at how to turn your flash drive into a full-fledged memory extension. We will look at the official methods available in the shell One UI, as well as hidden capabilities through the engineering menu. Be prepared for the fact that some older applications may not support the transfer function due to restrictions imposed by their developers.
Preparing a memory card and checking compatibility
Before starting any manipulations, you need to make sure that your memory card meets the requirements of the smartphone. For comfortable operation of applications, it is recommended to use media with a speed class of at least Class 10 or standard UHS-I. Slow cards can cause apps to freeze and take a long time to load the system.
Insert the card into the special slot located in the tray SIM cards. After this, the system will automatically prompt you to configure the media. If the notification does not appear, go to the settings menu. It is important to choose the correct operating mode here, since the ability to install software depends on this.
- 📱 Make sure that the phone is turned off before removing or installing the tray.
- 💾 Format the card only using a smartphone to avoid file system errors.
- 🔒 Make a backup copy of the data from the flash drive, since formatting will delete all files.
Please note that after formatting the card will be encrypted and linked specifically to your device. You won't be able to use it on another phone without formatting it again. This is a security measure Android to protect your personal data from theft.
⚠️ Attention: Do not use old memory cards with a capacity of less than 16 GB to install applications. They will not provide the required recording speed, which will lead to constant interface freezes.
Use memory cards from trusted brands such as Samsung EVO or SanDisk Extreme. Cheap Chinese analogues often have inflated characteristics and quickly fail when recording is active.
Configuring the card as internal storage
To transfer applications, the card must be configured as internal memory (Adoptable Storage). In stock Samsung firmware, this feature may be hidden or not explicitly present, unlike pure Android. However, in most regions, the option of combining storage is available for the A8 model.
Go to the section Settings → Device maintenance → Memory. Select your SD card from the list. By clicking on the three dots in the corner of the screen, find the “Storage Settings” item. Here you will be asked to choose a format: “Portable storage” or “Internal memory”. Select the second option.
The system will warn you about the slow speed compared to the native chip. Confirm the action and wait for the migration process to complete. After this, the system will begin to perceive the flash drive as part of the main disk. Now, when installing new apps, the system will automatically prompt you to select an installation location.
| Option | Portable storage | Internal memory |
|---|---|---|
| Installing applications | Not available | Available |
| Transfer to other devices | Possible | Blocked |
| Working speed | Depends on the card | Optimized by the system |
| Encryption | Optional | Required |
If the standard method did not work, the manufacturer may have blocked this function for your firmware version. In this case, you will need to use special utilities or ADB commands to forcefully activate the mode.
Manual transfer of installed applications
After setting up the storage, you can begin moving already installed apps. Not all applications are portable. Google system services, alarm clocks and some instant messengers are strictly tied to the main memory partition to ensure stability.
For manual transfer, open Settings → Applications. Select the app you are interested in from the list. Go to the "Storage" section. If the Change button is active, you can move the application to the SD card. If the button is gray or missing, the developer has disabled this operation.
The transfer process may take from a few seconds to several minutes depending on the cache size. At this time, the application icon may disappear from the desktop. Don't panic, this is normal system behavior during data migration.
- 🔄 Restart your phone after a bulk transfer of apps to correctly update file paths.
- 📂 Check the available space in the memory settings after each group of transferred applications.
- ⚙️ Do not transfer launchers and widgets, this may lead to failures in desktop display.
It is worth noting that even if the transfer is successful, some of the application data will still remain in internal memory. These are technical files necessary to quickly launch the app core. You won't be able to completely free up the internal storage, but you will provide significant unloading.
⚠️ Attention: When you delete an application, the data on the memory card will also be erased. If you decide to reset your phone to factory settings, all transferred apps will stop working and will require reinstallation.
Using ADB to force a transfer
If the standard settings do not give the desired result, you can use USB debugging. This method requires connecting the smartphone to the computer and installing drivers Samsung USB Driver. It allows you to bypass interface restrictions and force a change in storage type.
Activate developer mode by clicking 7 times on the build number in the “About phone” section. Then enable USB debugging from the menu that appears. Connect your phone to the PC and open a command prompt with administrator rights in the tools folder Platform-tools.
adb shell sm set-force-adoptable trueThis command tells the system that it should allow external drives to be used as internal drives. After entering the command, you need to reboot the device and reformat the card through the phone settings. The option should now become available even if it was previously hidden.
What to do if the command does not execute?
Make sure that the confirmation of the debugging request appears on the phone screen and you click “Allow”. Also check that the USB cable is working and supports data transfer, not just charging.
Be careful when using console commands. Incorrect input may result in system instability. This method is considered advanced and is recommended only for experienced users who understand the risks of tampering with system files.
Transferring cache and messenger data
The largest amount of space is usually occupied not by the applications themselves, but by their cache and downloaded media files. Messengers like Telegram i WhatsApp save gigabytes of photos and videos. They can be transferred manually without using special storage modes.
In the settings of the messenger itself, find the “Data and Memory” or “Storage” section. There's often an option to change the folder for saving media. Provide the path to your SD card. For Telegram, this is done through the cache path settings.
To transfer already accumulated files, use a file manager. Copy the folders WhatsApp/Media or Telegram/Telegram Images from the internal memory to the corresponding directories on the card. After copying, the originals in the internal memory can be deleted.
- 📸 Set up the camera so that new photos and videos are saved directly to the memory card.
- 🎵 Move music and downloaded navigator maps to external storage manually.
- 🗑️ Regularly clear the cache of applications that it is impossible to transfer completely.
This approach is the most secure and does not require obtaining root access. You simply change the logic for saving new data without affecting the application system files. This guarantees the stability of the operation of instant messengers and social networks.
Manually transferring instant messenger media files frees up space more effectively than transferring the applications themselves, since pictures and videos occupy up to 90% of the memory.
Possible problems and ways to solve them
Errors may occur during operation. Users often complain that applications run slowly or crash after transfer. This is due to the low writing speed of the memory card or its damage.
If the phone stops seeing the card or applications have disappeared, try removing and inserting the media again. Check the contacts in the slot for oxidation or dust. Sometimes reformatting the card in the file system helps. In rare cases, updating the firmware can reset the storage settings. Then the system will have to be configured again. Always have a backup copy of important data on your computer or in the cloud at hand. exFAT.
In rare cases, firmware update One UI may reset storage settings. Then the system will have to be configured again. Always have a backup of your important data on your computer or in the cloud.
⚠️ Attention: If after transferring applications the phone starts to get very hot, return them to the internal memory. The memory card is not designed for constant intensive writing and reading, like a built-in chip.
It is also worth considering that some banking applications and high-security apps may refuse to work if they detect that they are installed on external media. This is protection against potential data interception.
☑️ Diagnosing problems with the SD card
Frequently asked questions (FAQ)
Is it possible to transfer Samsung system applications to the card?
No, system applications pre-installed by the manufacturer are protected from transfer. Attempts to do this through root access may lead to system malfunction and loss of warranty.
Why is the “Change” button inactive for some games?
The application developer has prohibited installation on external media. This is often found in online games and applications that require high speed loading of resources.
Will a memory card speed up your phone?
No, a memory card is usually slower than the built-in memory. Moving applications may even slightly reduce the speed of their launch, but will free up space for the system, which will indirectly improve overall performance.
What will happen to the data on the card if I buy a new phone?
If the card was configured as internal memory, the data will be encrypted and will not be read on the new device. You will have to format the card, losing all data, or use it as portable storage.