Smartphone owners Samsung Galaxy often face a lack of internal storage, even if the device has a decent amount of memory. Installing heavy modern games and applications quickly fills up gigabytes, causing the system to slow down. One solution is to use a memory card to unload the main partition. However, the process of transferring data on devices of the South Korean brand has its own nuances, depending on the version and model of the phone. Modern shells microSD to unload the main partition.
However, the process of transferring data on devices of the South Korean brand has its own nuances, depending on the version Android and phone models. Modern shells One UI limit user capabilities compared to older versions of the system. However, there are legal optimization methods that allow you to move a significant part of the content to external storage.
In this article we will look in detail at how to configure a memory card as internal storage or transfer specific apps. You will learn about hidden developer functions, features of working with media files, and why some applications categorically refuse to move. Correct settings will free up valuable space without losing performance.
Preparing a memory card and selecting an operating mode
Before starting any manipulations, you must properly prepare the drive itself. Insert the card microSD into the slot of your smartphone Samsung and wait for a notification that it has been detected. The system will offer two options for use: portable storage mode or internal memory. The second option is critical for transferring applications, but it requires formatting.
When you select the “Use as internal memory” mode, the system will encrypt the card, linking it to a specific device. This means that you cannot simply insert it into another phone and read the data. Formatting will delete all files currently on the card, so make a backup copy of important photos and documents on your computer or in the cloud in advance.
⚠️ Attention: After formatting the card for internal memory, remove it without losing it the functionality of installed applications will be impossible. The card becomes a logical continuation of the system partition.
Choose only high-quality cards with a high speed class, for example, Class 10 or UHS-I. Slow drives can cause slowdowns when launching apps and freezing of the interface. If your card is old or cheap, it is better to use it only for storing photos and music, leaving applications in the internal memory.
☑️ Checking the readiness of the card
Standard transfer method through settings
The easiest way to try moving an application is to use the built-in system tools. This method does not work for all apps, since developers may prohibit installation on external media for security or stability reasons. However, for many utilities and games this function is available out of the box.
Go to the menu Settings and find the section Applications. In the list of installed apps, select the one you want to move. If the function is available, you will see an active button Memory or item Storage inside the application card.
The memory management screen will display the current location and a button Change. By clicking on it, you can select an option Memory card. The system will automatically transfer application files and part of the cache. If the button is inactive or gray, it means that the developer has blocked this feature and you will have to use other methods.
- 📱 Open the settings of a specific application in the general list.
- 💾 Click the "Change" button in the section storage.
- 🔄 Select the target drive (SD card) and confirm the action.
It is worth noting that even after the transfer, some of the application data will still remain in the internal memory. These are system files and libraries required to run. Therefore, you should not expect the application to take up 0 bytes of internal storage after migration.
If the Edit button is missing, try clearing the application cache in the same memory menu first. Sometimes this frees up space to activate the transfer feature.
Using Developer Mode to Force a Transfer
If the standard method does not work, you can activate a hidden feature in the developer menu. This mode allows you to force installation and transfer of applications to an external drive, ignoring some restrictions. However, this can lead to unstable operation of some apps.
To activate, you need to go to the section About phone → Software information and quickly click 7 times on the item Build number. Once a message appears indicating that Developer Mode is enabled, return to the main Settings menu. A new item will appear at the very bottom of the list Developer options.
Inside this menu, find the switch Allow saving to external drives (or “Force allow apps on external”). Activate it and restart your smartphone. After turning it on, try going into the application settings again - many of them will have the ability to transfer.
| Option | Standard mode | Developer mode |
|---|---|---|
| Accessibility transfer | Only if authorized by the author | Forced for the majority |
| Operation stability | High | Average (failures are possible) |
| Widgets on the screen | Work correctly | May disappear after reboot |
| System applications | Not transferred | Not transferred (protection kernels) |
⚠️ Attention: When you enable this option, some application widgets may no longer be displayed on the desktop after the device is restarted, since the system does not have time to load them from an external card.
Risks of using developer mode
Forced transfer may disrupt the operation of notifications and background processes. Applications that require quick access to data (messengers, banks) may run slower or crash. Use this function only for games and minor utilities.
Features of working with multimedia and cache
Often the bulk of the memory is occupied not by the applications themselves, but by their cache and downloaded files. Messengers like Telegram or WhatsApp, as well as social networks, save thousands of photos and videos in the internal memory. Transferring the application itself will do little if you do not configure the saving of media files.
Most modern applications have their own storage settings. Go to the messenger settings and find the “Data and memory” or “Storage” item. There you can specify the saving path for downloaded files. Select your card SD, and all new photos and videos will be recorded there.
For an already accumulated cache, you can use the “Clear cache” function in the application settings, and then, when you download the content again, it will be saved to the card. Also in the gallery Samsung you can move existing albums. Select the desired folders, press the menu and select Move, specifying the memory card as_destination_.
- 🗑️ Regularly clear the cache of heavy applications manually.
- ⚙️ Change the save path in settings of each messenger separately.
- 📸 Set the camera to save photos and videos directly to the SD card.
The camera in smartphones Samsung by default can save files to the internal memory. Open the camera application, go to settings (gear) and enable the option Save to a memory card. This will prevent the main section from quickly filling up when actively shooting video in high resolution.
Transferring the application itself frees up little space. The main gain in volume comes from reconfiguring the paths for saving media files and regularly clearing the cache.
Compatibility issues and system limitations
Despite all your efforts, you may encounter a situation where some applications are not transferred at all. This is due to the security policy Google and the requirements of the developers. Banking applications, Google services, launchers and system utilities should only work with internal memory to ensure performance and data protection.
In addition, when using the card as internal memory, read/write speed becomes a critical factor. If the card is slower than the built-in flash drive, the phone may start to work noticeably slower. Android tries to compensate for this, but the physical speed of the card interface cannot be bypassed.
⚠️ Attention: Interfaces and menu names may vary depending on the version of One UI and the model of your Samsung. If you do not find the described item, check system updates or look for a similar function in the adjacent settings sections.
Another problem is deleting the card. If you remove a card formatted as internal storage, all applications transferred to it will no longer run. The system will display the error “Application not installed.” You will have to either insert the card back or reinstall the applications again into the internal memory.
Alternative methods and file management
If the built-in tools do not give the desired result, you can use file managers to manually sort data. Standard Explorer My files in Samsung allows you to easily move large folders with documents, downloads and archives to a memory card manually.
Create a structured folder on the memory card, for example, Transfer, and move heavy files from the internal memory there. This will not migrate the application itself, but will free up space for it to work and update. You can also use cloud services to store rarely used files, deleting them completely from the device.
For advanced users, there are tools like Link2SD, but they require root access. Obtaining superuser rights on modern Samsung is difficult, violates the warranty and blocks the operation of banking applications (Samsung Knox works irreversibly). Therefore, this method is not recommended for ordinary users.
Settings → Device maintenance → Memory → Memory card → FormatRemember that the best optimization is removing unnecessary things. Review installed games and apps. We often keep dozens of applications that we haven't used for months. Removing them will free up more space and increase operating speed than any manipulations with the memory card.
Why does the application run slower after transfer?
The speed of the application depends on the speed of data reading. The smartphone's built-in storage (UFS) is significantly faster than most microSD cards. When transferring to a card, the processor has to wait for the data to load, which causes delays and freezes.
Is it possible to transfer WhatsApp to a memory card?
Officially, the WhatsApp application itself cannot be transferred to a card due to developer restrictions. However, you can transfer the database with media files by changing the settings inside the application or manually moving the WhatsApp folder through the file manager after creating a backup.
What happens if you remove the memory card with applications?
Applications located on the card will no longer launch, and their icons may disappear or become inactive. The data inside them will not be accessible. The system may prompt you to remove these applications. To restore, you need to insert the same card back.
How to return the card to normal storage mode?
Go to Settings → Device maintenance → Memory → Memory card → Menu (three dots) → Format as portable storage. Please note that all data on the card will be deleted, and applications will have to be reinstalled.