Owners of Xiaomi, Redmi and Poco smartphones often face a lack of built-in storage, especially if the device has 64 or 128 GB of memory. An overcrowded drive leads to a decrease in the performance of the MIUI or HyperOS system, the inability to install updates and constant notifications of space shortages. The solution lies in the competent use of the microSD card, which allows you to free up precious gigabytes for the operating system.
Xiaomi’s modern shells provide flexible tools for managing files, but many users still store everything in internal storage. Transferring data to an external medium is not just copying, but optimizing the operation of the entire device. In this article, we will discuss all the current methods of moving media and even some applications to make your smartphone work quickly again.
Before you start taking action, you need to make sure that your memory card is properly installed in the slot. If you just bought a new drive, the system may require formatting, which is a normal procedure for preparing the file system.
Preparation of memory card and system setting
The first step is to install and initially set up the external drive. In Xiaomi smartphones, the slot is usually combined, allowing you to use either two. SIM-A card, or one SIM card and a memory card, and once you physically put the card in the tray and turn on the device, the system automatically detects a new media.
Most often, Android will offer to use the card as a portable storage or as part of internal memory. For file transfer, you should choose the first option, since it provides compatibility with other devices and computers without additional formatting. The second option encrypts data, making the card unreadable on other gadgets, but allows you to store application data there.
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Use U3 or V30 speed memory cards to record 4K video to avoid delays and frame loss when shooting.
Once the mode of use is selected, the system will check and prepare the file system, which can take from a few seconds to a couple of minutes depending on the storage capacity, at which time it is not recommended to remove the card or turn off the phone so as not to damage the directories structure.
It’s important to understand the difference between portable storage and internal memory. Portable mode is ideal for photos, videos and music you want to have on hand, but be able to quickly transfer to a PC. Internal mode expands the space for installing heavy games and programs, but ties the card to a specific phone.
Transferring photos and videos through a standard conductor
The most common scenario is to move media content, which takes up the lion’s share of space. Xiaomi smartphones have a great file manager that allows you to perform copy and move operations without installing third-party software.
In the Explorer interface, go to the internal memory section and find the DCIM folder where the camera images are stored, or the Pictures folder for screenshots and images from messengers. Select the desired folders or individual files with a long press, then select the option “Move” or “Copy” in the lower action menu.
☑️ Algorithm of file transfer
Once you select an action, the system will ask you to specify your destination. In the list of available storages, select your memory card (usually designated as an SD Card or the name of the card manufacturer), create a new folder for order or select an existing one, then confirm the operation with the "Insert" button.
The transfer speed depends on the class of your memory card and the amount of data you transmit. When moving thousands of small photos, the process can take longer than when copying several high-resolution video files. Interrupting the process can damage files, so wait for the notification to expire.
⚠️ Warning: If the phone runs out during the transfer, the files may be damaged or lost. Make sure the battery is at least 30% before starting a mass operation.
Configure photo and video saving on SD card
To avoid manually transferring files every time, you can set up the standard Camera app to save new images immediately to an external drive, which will free you from the need for constant manual sorting and allow the internal storage to breathe more freely.
Open the camera app, click on the three bars in the upper right corner to enter the menu, and select Settings. In the list of options, find Save on SD-Now, you can start the switch, and from now on, all the new photos and videos will be recorded directly to the external media.
You can do the same thing in a voice recorder if you use your smartphone to record lectures or interviews. Go to the voice recorder settings and select the storage. SD-This is especially true for journalists or students who take hours of recording.
It is worth noting that some heavy shooting modes, such as 8K video or 200MP mode, may ignore settings by default and write to internal memory due to the requirements for write speed, in which case the system may issue a warning about insufficient memory card speed.
Moving apps and games to an external drive
The issue of installing applications SD-The map in modern versions of Android (starting with 6.0 and above) is not as clear-cut as in older versions. Developers Google and Xiaomi have limited this possibility for the sake of system stability, because external drives are slower than internal flash memory.
However, portability exists for some applications. Go to Settings → Annexes → All applications. Select the program you want from the list. If the developer hasn't banned the transfer, you'll see a memory or storage button where you can either change or move to the "Remove" option. SD-map».
Why is the transfer button inactive?
If you can't move the application with standard tools, you can use Extended Memory mode (if your model supports it), and when formatting the card as internal memory, the system will decide which parts of the applications and caches to place on external media, but this will make the card unreadable outside of the phone.
For advanced users, there is a method of activating a hidden developer menu that allows you to forcibly allow the transfer of any applications. To do this, you need to 7 times click on the build number in the About Phone section, then in the For Developers menu, enable the option “Allow Saving to external drives”.
⚠️ Warning: Forced transfer of system applications or important Google services to a slow memory card can lead to unstable phone operation and freeze the interface.
Working with messengers: Telegram, WhatsApp, Viber
Messengers are the main memory eaters, accumulating gigabytes of cache, photos and videos. Telegram, for example, can completely change the way you store downloaded files, which is critical for owners of budget smartphones Redmi or Poco.
In the Telegram settings go to the section "Data and memory» → «The file path. Here you can select "Other" and point the folder to the SD-After that, all the new files you choose to save will be transferred to the external media, bypassing the internal storage.
WhatsApp is more complicated because of the changes in folder structure in Android 11 and up. The media folder is now on the Android/media/com.whatsapp path. You can't move the entire folder to the map without losing functionality, but you can set up automatic cleaning or manually transfer old videos once a month.
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Regular cleaning of messenger cache and transfer of old correspondence to PC is more effective than trying to make them work directly with the Internet. SD-map.
Viber and Signal have similar limitations, and the best strategy is to periodically export important media files to the cloud or computer and then remove them from the phone’s memory, and using memory cards is more of an archival solution than a working one.
Compatibility table and characteristics of memory cards
When choosing a memory card for a Xiaomi smartphone, it is important to pay attention not only to volume, but also to the speed class. An inappropriate card can cause interface lags and a long gallery opening. Below is a table to help determine the choice.
| Type of card | Min. Recording speed. | What's the point? | Xiaomi Recommendation |
|---|---|---|---|
| Class 10 | 10 MB/s | Music, documents | Minimum threshold |
| UHS-I (U1) | 10 MB/s | Photo, HD video | Basic level |
| UHS-I (U3) | 30 MB/s | 4K video, games | The best choice |
| UHS-II / V60 | 60 MB/s | Pro 8K shooting | For flagships |
Note the V30 or A2 markings. The A2 marking indicates high random read and write speeds, which is critical if you plan to run apps or games directly from a memory card. Class A1 cards will run slower in such scenarios.
Original SanDisk, Samsung or Kingston cards bought from official dealers last for years, cheap counterparts from Chinese sites often have a real volume of 2-3 times less than the declared and quickly fail.
Frequent problems and ways to solve them
Sometimes users are faced with a situation where the phone stops seeing the memory card or files on it become inaccessible, most often this is due to improper extraction of the card without first disconnecting the system, in which case re-formatting may be necessary.
Another common problem is the “file too big” error when copying, which occurs if the card file system is formatted in FAT32, which does not support files larger than 4GB. The solution is exFAT formatting, which is supported by modern Xiaomi smartphones.
How to check the card for errors?
If the memory card is detected but the files are not readable, try restarting the device. In rare cases, cleaning the Explorer app cache or updating the system to the latest version of MIUI/HyperOS, where external drive bugs are fixed, helps.
⚠️ Warning: If the memory card starts to warm up in the area of the slot or the phone quickly discharges when you are actively working with it, it is possible that the drive is defective and creates a short circuit.