Modern Xiaomi and Redmi smartphones are famous for their excellent price-performance ratio, but the basic versions often come with limited internal memory. Owners of models with 32 or 64 GB sooner or later face critical notification of a shortage of space, which slows down the system and prevents the installation of updates. The solution is a microSD memory card, which allows you to expand storage to several hundred gigabytes, turning a budget device into a powerful multimedia center.
In Android, as well as in the proprietary shell MIUI or HyperOS, the process of setting up an external drive has its own peculiarities. Many users mistakenly believe that it is enough to simply insert a flash drive to automatically start writing all new data to it. In fact, to work correctly, you need to manually change the default settings for each type of content: photos, music, documents, and even some applications. Ignoring these settings will cause the internal memory to continue to fill up, negating all the expansion efforts.
In this guide, we will discuss how to properly prepare a memory card, how to change the save path for the camera and voice recorder, and the nuances of working with applications. You will learn why some programs refuse to be transferred to an external medium and how to avoid data loss when retrieving the drive.
Preparation of memory card and initial installation
The first step is to physically install the drive. In most Xiaomi smartphones, the tray for the storage is SIM-The card is paired with a microSD slot. You'll need a special key-clip that comes with the device. Carefully remove the tray, place the memory card with metal contacts down (or up, depending on the tray model) and insert back before clicking. The system must automatically recognize the new media and suggest it configure.
Once the card is discovered, the system will offer two uses: as a portable storage device or as part of internal memory. Xiaomi often recommends the former option, as it provides better compatibility and makes it easy to transfer files to other devices without formatting. However, if you plan to store only media files on the flash drive, this choice is optimal. If you want to install applications on it, you will need a second mode, but it can work unstable on older versions of MIUI.
⚠️ Note: When formatting a memory card, all the data on it will be permanently deleted. If there are important files on the media, copy them to the computer beforehand.
The formatting process can take anywhere from one to five minutes, depending on the size of the drive and the speed of its operation. At this time, it is strongly recommended not to remove the card or turn off the smartphone, so as not to damage the file system. Once the procedure is completed, a message will appear in the notification panel about the successful installation, and you can move to fine-tuning the save paths.
💡
Use UHS-I speed memory cards (U1 or U3) to record high-resolution video. Slow cards can cause delays in shooting or camera freezes.
Configure photo and video saving in the camera
The most voluminous content a smartphone generates is photos and videos. Xiaomi's default camera stores all the images in internal memory, which quickly overflows it. To change this behavior, you need to go to the settings of the camera app itself. Open the app, click on the three horizontal bars in the upper right corner, and select Settings.
In the menu that opens, scroll down to the section associated with the storage. You need the item "Save on" SD-map" or "Use SD-Activate the switch in front of it, and from now on, all new images, including the serial and slow-motion video, will be recorded directly to the external drive. This action does not affect the photos you have taken, they will remain in your internal memory unless you manually transfer them.
- 📸 Serial shooting: now, when you press the down button, a series of photos will be saved to the flash drive, without taking up a place in the system.
- 🎥 Video 4K: Heavy video files will be written directly to an external drive, which will prevent interruption of the recording due to space shortage.
- 🤳 Selfies and Portraits: Background Blurring Modes Will Also Use New Default Save Way.
It’s worth noting that in some firmware versions, the path to this setting may be slightly different. If you don’t find the switch in the camera’s main settings menu, check the “Additional” or “Advanced Settings” section. Also make sure the memory card is not damaged and has sufficient write speed, otherwise the camera can automatically switch back to internal storage during shooting.
Transfer of music, movies and downloads
Multimedia files take up the lion's share of the space of active users. Browsers, instant messengers, and music services, by default, pump content into internal memory. To change that, you need to configure each source separately. In the standard Download app, click on the menu (three dots) and select Settings. Here activate the Save Path option and specify your SD-map.
For browsers like Chrome or the standard Mi Browser, the procedure is similar. In your browser settings, find the Downloads section and change the destination folder. This is especially true for those who download heavy files, documents or offline maps of the navigator. Music players, such as the standard Mi Music or third-party players like Aimp, also allow you to choose a folder to scan and save the cache.
| Annex/Service | Where to change the setting | What's transferable |
|---|---|---|
| Camera. | Settings → Save to SD | Photos, videos, boomerangs |
| Dictaphone | Settings → Save to SD | Audio recordings of meetings and lectures |
| browser | Settings → Downloads → The Way | Downloaded files, APKs, documents |
| Telegram | Settings → Data and memory | Media cache (partially) |
Special attention deserves the cache of messengers. In Telegram, for example, you can specify the use of data and memory settings SD-This won't transfer the history of the correspondence, but will free up gigabytes of space occupied by the videos and pictures viewed. On WhatsApp, this feature is implemented less explicitly and often requires manually moving folders through the file manager.
Why are some files still stored inside?
Installation and transfer of applications to SD-map
The issue of installing applications on a memory card in modern versions of Android is resolved ambiguously. Google seeks to limit this possibility for the sake of security and performance, since external drives are slower than the built-in flash memory. MIUI. In the new shells, the standard function "Move to the SD-The map in the application settings is often missing or inactive for most programs.
However, the portability still exists for some applications.Go to Settings → Annexes → All applications. Select the program you want (like a game or utility). If the developer has authorized the transfer, you will see the "Move to" button. SD-If the button is gray or missing, then the application is rigidly tied to the system partition and it cannot be moved by standard methods.
There is a method of activation through the engineering menu, but it requires a connection to the computer and use of the system. ADB-This is a complex process that is not recommended for ordinary users, as it can lead to unstable operation of the phone, a safer option is to use the function of "Second space" or simply regularly clean the cache of heavy applications that can not be transferred.
⚠️ Attention: Memory-transfered applications may be slower and their widgets may disappear from the desktop after removing the drive.
☑️ Pre-mobilization checks
Working with a file manager and manually moving
Automatic switching of save paths does not always affect existing files. To clean up and free up internal memory, manual data movement is often required, and Xiaomi uses the built-in File Manager app. It allows you to see the folder structure of both internal memory and SD-mapping.
Open the conductor and go to internal memory. Find folders with heavy content: DCIM (If you have old photos, Download, Music, Video, Documents, select the right files or entire folders, click Copy or Move. SD-cards (usually indicated as SD Card or card manufacturer name) and paste files there. Operation Move will delete the originals from internal memory, and Copy will leave them, taking up space in both places.
Pay special attention to the Android/data folder. This is where the cache and data of many games and applications are stored. In new versions of Android, access to this folder is limited, and the Explorer can request special permission to manage files. Once confirmed, you can transfer heavy folders with the game cache (for example, Obb files) to the memory card if the game supports startup from an external medium.
- 📂 Sorting: Use size sorting in the conductor to quickly find the largest files to transfer.
- 🗑️ Cleanup: Delete unnecessary files before transferring so as not to copy the “digital garbage” to a new card.
- 🔄 Sync: After transfer, check that the applications (gallery, player) see the files in the new place.
💡
Manually moving DCIM and Download folders frees up the most space and is the safest way to optimize without losing data.
Possible problems and solutions
Even after setting it up properly, users may encounter difficulties. The most common problem is that the memory card suddenly becomes unavailable or stops reading. Often this is due to incorrect extraction. Always use the Safe Retrieval feature in the notification curtain or in the storage settings before physically removing the card. Abrupt shutdown can damage the file spreadsheet.
Another common case is that the card is detected, but the files are not written to it, and the system writes an error “Inadequately rights” or “File is corrupted.” This may indicate that the card file system is not compatible with Android. The optimal format is exFAT (for cards larger than 32 GB) or FAT32. If your card is formatted in NTFS (Windows format), the phone will only be able to read files, but not write new ones without special drivers or root rights.
It can also slow down the interface, and if you have a lot of apps on your phone that slows down, try to put the most commonly used programs back in your internal memory, and the random read speed of cheap memory cards is far less than the built-in storage of your smartphone, which has a direct impact on the speed of downloading applications.