Owners of smartphones released several years ago often face a critical lack of built-in space. The operating system Android 7.0 Nougat brought significant improvements in file management, but the problem of full internal memory remained relevant for budget devices with 8 or 16 GB of storage.
Fortunately, it was in this version of the system that a function appeared and became more accessible, allowing you to use an external drive as a full extension of the system partition. This is not just file storage, but a full-fledged integration that changes the approach to installing apps.
Before taking active steps, you need to understand that not all devices support this function out of the box. Manufacturers often hide the ability to format a card as internal storage, but there are proven methods for bypassing these restrictions for advanced users.
Preparing an SD card and checking compatibility
The first step is to choose a quality drive. To work correctly in conjunction with the system Android 7 a memory card with a speed class of at least Class 10 is required, ideally of the UHS-I standard. Slow cards will lead to noticeable delays when launching apps and operating the interface.
⚠️ Attention: The process of formatting a card as internal storage will completely destroy all data on it. Be sure to back up your photos and documents to your computer before starting the procedure.
Insert the card into the device slot and wait for the notification about the new drive. The system will offer to use it to store photos and media files, but we need another solution. Go to the storage settings, select your card and find the menu item.
If you do not see the formatting option, this means that the manufacturer has blocked the function Adoptable Storage. In this case, it will not be possible to transfer applications using standard methods, and you will need to use debugging commands through a computer.
- 📱 Make sure that the battery is charged at least 50% to avoid formatting failures.
- 💾 Use cards with a capacity of 16 GB or more, since system files will take up some of the space.
- 🔒 After formatting, the card will be encrypted and cannot be read on other devices without a reset.
The quality of the memory card directly affects the stability of the smartphone. Cheap drives from unknown brands can quickly fail when intensively recording logs and application caches.
Activating the Adoptable Storage function via ADB
If the “Use as internal storage” button is not available in the settings menu, you need to use the tool Android Debug Bridge. This method requires connecting your smartphone to your computer and minimal knowledge of working with the command line.
First, activate developer mode on your device. Find the build number in the About Phone section and quickly tap on it 7 times. After this, a new item “For Developers” will appear in the settings menu, where you need to enable USB debugging.
Connect the phone to the PC with a cable and open the ADB control console. Enter the command to get a list of drives to find out the ID of your memory card. Usually it looks like disk:179,64 or a similar combination of numbers.
adb shell sm list-disksAfter receiving the ID, run the format command. It will forcibly create the necessary partitions and encrypt the drive to suit the needs of the system. Be careful when entering commands, as an error may lead to formatting of the built-in memory.
adb shell sm partition disk:XXX privateInstead XXX substitute the numbers of your disk. After executing the command, the system will reboot or ask for a reboot and the card will be identified as part of the internal storage. Now you can start migrating data.
Step-by-step transfer of installed applications
After successful merging of storages, the system will automatically begin placing new applications on the card. However, already installed apps must be moved manually through the app management menu. This will take some time, but will free up precious megabytes.
Go to Settings → Applications and select the desired app. If the developer has not disabled the transfer, you will see an "Edit" or "Move to SD card" button. Press it and wait for the process to complete.
☑️ Transfer checklist
Not all applications support the transfer. This limitation is imposed by software developers who believe that their product should only work with fast built-in memory to ensure stability.
⚠️ Attention: Some system widgets and Google services may not work correctly after the transfer. If you notice problems with the alarm clock or notifications, return the application to the internal memory.
For mass management, you can use third-party utilities, but using standard tools Android 7 it is safer to transfer apps one at a time, controlling the result. This is especially true for instant messengers and banking applications.
Setting default saving
In order for new files, photos and downloads to immediately go to the external drive, you need to change the storage settings. In the memory section, select the card and set it as the default recording device for the camera and voice recorder.
Browsers and instant messengers often have their own save path settings. For example, in Telegram or WhatsApp the path to media files can be changed in the settings of the application itself by specifying a folder on the SD card.
- 📷 In the camera settings, select “Save to SD card.”
- 🎵 In the music player, specify the path to the library on an external drive.
- 📥 In the Chrome browser, change the download path in the download settings.
Automating this process will save you from the need to constantly monitor free space. The system will strive to use a more capacious external drive for heavy files, leaving the system partition free for the cache.
Possible problems and ways to solve them
During operation, situations may arise when applications stop starting or work slowly. This is often due to low card reading speed or file system errors after long-term operation.
If you notice “freezes” in the interface, try removing the card, cleaning the contacts and inserting it back. Rebooting the device also helps. In more complex cases, you may need to reformat the drive.
Why is the application not transferred?
Some applications contain home screen widgets or system services that must load before the SD card is mounted. Therefore, developers block the ability to transfer such apps to external drives.
Reading errors can occur when using large capacity cards (64 GB and higher) in older smartphones. Make sure your file system is formatted in a compatible format, although Android 7 usually selects the desired markup type.
| Problem type | Probable cause | Solution |
|---|---|---|
| The application crashes | Low card speed | Replace the drive with Class 10/UHS |
| No “Move” button | Developer ban | Clear cache or use alternatives |
| Reading errors | File system corruption | Reformat the card through settings |
| The phone does not see the card | Bad contact or format | Reconnect and check the exFAT/FAT32 format |
Stability of operation depends on the quality of the hardware. Cheap memory cards often have underrated specifications and cannot withstand the constant overwriting of data that is typical for running applications.
Optimization and maintenance of the drive
Regular maintenance helps extend the life of the memory card and maintain system performance. Once every few months, it is recommended to check the storage for errors and delete unnecessary files.
Use built-in optimization tools or proven utilities to analyze occupied space. Often, the cache of deleted applications remains on the disk and takes up space that can be safely cleared.
When buying a new memory card, pay attention to the A1 or A2 marking. These standards guarantee minimum random read and write speeds, which is critical for running applications from an SD card.
Do not fill the memory card completely. For normal operation of the file system and extending the service life of the drive, it is necessary to leave 10-15% of free space. Overflow leads to a sharp drop in recording speed.
⚠️ Attention: Settings interfaces may differ depending on the manufacturer's shell (MIUI, EMUI, TouchWiz). The location of menu items may vary, but the logic of actions remains the same for the entire platform.
Following the rules of digital storage hygiene will allow your device to be based Android 7.0 work quickly and stably even years after release. Proper distribution of data is the key to the longevity of a smartphone.
Using a high-quality UHS-I memory card and regularly clearing the cache are the main conditions for stable operation of applications after transferring them to external storage.
Frequently asked questions (FAQ)
Is it possible to transfer all applications without exceptions?
Unfortunately, no. System applications and apps that require high access speed or run in the background from the very start of the system are often protected from being transferred by developers. This is done to ensure the stability of the OS.
Will the phone work faster after transferring applications?
The speed of the interface depends on the card reading speed. If your SD card is slower than your internal memory (which is often the case), then apps may take longer to launch. However, freeing up internal memory can improve overall system responsiveness.
What happens to the data if you remove the card?
Applications transferred to the card will no longer run, and their icons may disappear from the desktop. The data inside these applications will no longer be available until the card is reinstalled. Photos and documents saved to the card will remain intact.
Is it safe to store passwords and banking data on an SD card?
Using the card as internal storage (Adoptable Storage) encrypts the data, tying it to a specific device. This makes reading information on another phone impossible without formatting, which ensures a high level of security.