Xiaomi Redmi smartphone owners often face a lack of internal memory, especially when using multimedia and installing heavy games. A standard 64 or 128 GB may not be enough to work comfortably, and removing photos does not always solve the problem of system limitations. USB-flash-drive OTG-cable, which allows you to free up precious interior space.
But just connecting a drive isn't enough -- Android requires the right setup to work with external devices. In this article, we'll look at how to move an app from phone to flash drive to Xiaomi Redmi, what are the limitations of MIUI, and how to get around standard system bans. You'll learn about the nuances of formatting and understand which programs are best for working with external storage.
It should be noted that the portability directly depends on the version of the operating system and the specific model of your gadget. Modern shells HyperOS and MIUI 14 have strict security policies that can block the installation of programs on external drives without using special modes.
Preparation of equipment and choice of storage device
Before you start any manipulation, you need to make sure that your hardware is compatible and ready to work. Not every flash drive is suitable for use with a smartphone, especially if you plan to run applications from it, rather than just storing files. The key element here is support for OTG (On-The-Go) technology, which allows the mobile device to act as a host for the periphery.
You'll need the drive itself to connect, and maybe an adapter. Most flash drives today have a plug. USB Type-A, while Xiaomi Redmi smartphones are equipped with a Type-C port. OTG-A cable or a flash drive with a double connector is a must. Cheap adapters may not provide stable power, which will lead to permanent shutdowns of the drive.
Pay attention to the speed of reading and writing your device. For the comfort of applications, it is recommended to use USB 3.0 and higher, since older versions of USB 2.0 can create a narrow neck in performance.
- 🔌 Make sure your Xiaomi Redmi supports the feature OTG (99% of models in the last 5 years).
- 💾 Use a flash drive with a volume of at least 16 GB, optimally — 32-64 GB for balance of speed and price.
- ⚡ Prefer metal-body drives for better heat sink for long-term operation.
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Check the OTG support for your model on the official website or through the AIDA64 app in the USB section before buying an adapter.
It is also important to check the state of the storage file system. Android works best with the format FAT32 or exFAT. If your flash drive is formatted in NTFS (Windows standard), the phone may suggest it be formatted, which will delete all data.
Setting up USB-storage MIUI
After physically connecting the flash drive to the smartphone through OTG-cable, the system must automatically identify the new device, and the connection notification will appear on the screen. USB-Unlike computers where the disk appears immediately, Xiaomi often requires manual access confirmation or formatting if the file system is unreadable.
Go to the settings menu to manage the storage. You need to find the memory partition. The path may vary slightly depending on the shell version, but it's usually at Settings → About Phone → Storage or Settings → Memory. Here you'll see a list of connected devices and internal memory.
If the system offers to format the drive, agree only if it does not have important data. The formatting process will create the necessary folder structure for Android, after the procedure is completed, the flash drive will be available for writing and reading.
⚠️ Attention: Formatting completely destroys all data on the flash drive. Be sure to back up your files on your computer before you start setting up.
For advanced users, the memory extension feature is available if it is supported by a particular model. However, most often the flash drive is defined as an external portable medium, in which case you can transfer media files manually to it, but you will need additional actions to port applications, which we will talk about in the next sections.
☑️ Connection check USB
Standard Application Transfer through Settings
Many users are looking for a “Move to” button. SD-map in the standard application management menu, but in modern versions MIUI Android 10-14 This feature is often hidden or removed by developers. Google believes that external drives are not reliable enough for system processes to work, so limits the ability to install programs on them.
However, it is worth trying to move the application using standard means. → Annexes → All applications. Select the program you want from the list (for example, a heavy game or a navigator). If portability is possible, you will see an active button "Change" or "Move to" SD-map».
If the button is grey or missing, it means that the app developer has banned the transfer, or the system blocks this operation at the software level, in which case it is impossible to move the cache using standard methods and the program data will not work.
| Type of application | Possibility of transfer | Recommendation |
|---|---|---|
| System services | Impossible. | Do not attempt to move to avoid failures |
| Social media | Partially/Impossible | Cleaning the cache inside the application |
| Games (cache) | Maybe (through files) | Transfer the OBB folder manually |
| Messengers | Impossible. | Transferring the database of media files in settings |
It’s worth noting that even if you successfully transfer some of the app’s data, it will still remain in internal memory, which is normal for the Android architecture, since executable files must load quickly and external drives can have delays.
Why did the transfer button go missing?
Use the function "Adoptable Storage"
There's a more radical method to make the phone think that the flash drive is part of the internal storage, a feature known as Adoptable Storage. MIUI This allows you to activate this mode (usually through hidden settings or ADB-commands), the flash drive will be formatted in a secure format, and you can install applications on it as on a built-in disk.
Activation requires a computer connection and USB debugging, which is a more complex process that requires caution, and once you turn on the flash drive, it's encrypted and it's tied to a particular device, and you can't plug it into another phone without formatting.
The process is as follows: turn on the developer mode, activate debugging over USB, connect the phone to the PC. Through the command line, you enter the command adb shell sm list-disks to determine the disk ID, and then the adb shell sm partition disk:XXX private.
⚠️ Note: Using the internal memory mode significantly reduces the life of the flash drive due to the intensive recording of system logs and cache. U3 quality SSD-accumulator.
If the command fails or the system fails, the manufacturer has blocked this capability at the firmware level, in which case it is left to rely on third-party software or manual data transfer.
Transferring the cache of games and heavy files manually
The most effective way to free up space without using complex commands is to manually transfer the cache of games and heavy applications. Many games (e.g. PUBG, Genshin Impact, World of Tanks Blitz) load gigabytes of data into the Android/obb or Android/data folder, these files can be safely moved to a flash drive, freeing up internal space.
To do this, you'll need a file manager with advanced rights, like MT Manager or a standard Explorer with access to system folders. Find a folder with game data, copy it to an external drive, and then delete the original. Some game launchers allow you to manually specify the path to the cache in the settings.
You can also look at messengers, and on Telegram and WhatsApp, you can change the way you save media files. Go to the app settings, select Data and Memory → Save Way, and specify your flash drive, which automatically redirects all new photos and videos to an external drive.
- 📂 folder Android/obb It contains the basic data of the games - it can be transferred in its entirety.
- 📸 In the gallery Xiaomi can configure auto-save new photos immediately on USB-accumulator.
- 🎵 Music and video players allow you to choose an external map as the main library.
It's important to understand that when you manually transfer files when you update the application, you may lose track, so you either have to return the files back or re-specify the path in the settings, which is a small cost for saving internal memory.
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Manually transferring OBB and Data folders is the safest way to free up space without the risk of data loss or breach of warranty.
Frequent problems and ways to solve them
Users can experience a variety of errors during the setup process, the most common being that the phone doesn’t see the flash drive or constantly writes a formatting error message, often due to a lack of power on the USB port, especially if a large-volume USB drive is connected or through a long cable.
Another issue is the slowness of applications after transfer, which indicates a slow write speed of the drive, in which case it is better to leave only photos and videos on the USB drive, and return the applications to internal memory, and file system conflicts may also occur if the USB drive was previously used on devices with non-standard settings.
If the application stopped running after transferring, try to clear its cache in the settings or reinstall the program by pre-plugging the flash drive.
⚠️ Note: Do not remove the flash drive "on hot" without first turning off the Settings menu → Memory. → Shut down. USB-This can cause file system damage and data loss.
In some cases, resetting USB settings helps. To do this, in the developer menu, look for the "Default USB Configuration" option and try to switch it to MTP mode and then back again. This will restart the connection drivers.