Owners of Xiaomi Redmi 8A Often face a lack of internal memory, especially if the device has many applications or games. SD-The map seems to be a logical solution, but in MIUI This process is nuanced: not all applications support movement, and some functions may not work properly. In this article, we will examine all the available methods, from standard settings to workarounds for "unbearable" applications.
The main problem with the Redmi 8A (m1908c3ic) is Android 9/10 and Google’s policy that restricts the portability of applications to external drives. However, MIUI 11/12 has hidden features to expand the capabilities. We tested all methods on firmware V11.0.8.0.PCPRUXM and V12.0.3.0.QCPMIXM, the results are shown in the comparison table below.
Important: Before starting the procedure, check that yours is yours. SD-The best option is a class card. UHS-I (U1/U3) volume 32 GB with exFAT file system or FAT32. Format maps NTFS or ext4 won't fit!
1. Preparation SD-Maps: Formatting and Selection of File System
The first step is to prepare the drive properly. - Xiaomi Redmi 8A supports two modes of operation SD-map:
- 📁 Portable storage – the card is used as a flash drive (applications cannot be ported, only files).
- 🔄 Internal memory – the card is formatted as part of the system (you can port applications, but the card cannot be retrieved without data loss).
The second option is to migrate applications, and you need to be careful: once formatted as internal memory, all the data on the map will be deleted, and it will not be possible to use it on other devices without re-formatting.
Formatting instructions:
- Put it in. SD-slot 8A (Supported cards up to 512 GB).
- Go to Settings. → Warehouse → SD-map.
- Press Three dots (⋮) → Storage settings → Formatting as an internal.
- Confirm the action and wait until it is completed (may take 5-10 minutes).
Make a backup copy of the data with SD-map|Charge your phone at least to 50%|Use a class card U1/U3|Disable the antivirus (can block the process)-->
Once formatted, the system will suggest moving some of the data (photos, videos) to the map, and you can drop this offer, and we need to manually configure the portability of the applications.
2. Standard application portability through MIUI settings
The easiest way is to use the built-in MIUI tools, but it doesn't work for all apps, like WhatsApp, Google Play Services, and system utilities, you can't move.
Step-by-step:
- Open Settings → Applications → Application Management.
- Select the app you want (like Facebook or Spotify).
- Press Warehouse. → Change. → SD-map.
- Confirm the transfer and wait until the completion (may take up to 5 minutes).
If the Change button is inactive or not, the application does not support the transfer, in which case one of the alternative methods will help (see section 4).
16-32 GB|64GB|128GB|256GB and more|I don't use it.-->
| Type of application | Supports the transfer? | Limitations |
|---|---|---|
| Social media (VK, Instagram) | ✅ Yes. | Notifications may be delayed |
| Games (PUBG Mobile, Clash of Clans) | ⚠️ Partially. | Only a portion of the data is transferred (the cache remains in the internal memory). |
| System applications (Google Play, MIUI Security) | ❌ No. | Transfer blocked by manufacturer |
| Messengers (Telegram, Viber) | ✅ Yes. | There may be problems with downloading media files |
Transfer errors and their solutions
When transferring applications to SD-map 8A There are some errors that can occur. Let's look at the most common ones and how to fix them:
⚠️ Note: If the application stopped working after the transfer, try clearing its cache in Settings → Annexes → [Name of name] → Warehouse → If that doesn't work, move the app back to internal memory.
- 🚫 "There is not enough space on the device, even if it is SD-The card has a free space, the system can show this error.
- ⚙️ "The app does not support transfer – try using it ADB (section 4) or update the application to the latest version.
- 🔄 "SD-card retrieved - check the physical connection of the card. If the problem persists, reformat the card as an internal memory again.
- 📱 "The app does not open after the transfer – delete and install it again by selecting SD-map as default setting (if available).
If none of these methods helped, check. SD-error map SD Card Formatter (official utility from the SD Association, available for download from sdcard.org.
How to check the speed SD-map?
Alternative methods: transfer via ADB and Link2SD
If the standard method does not work, you can use ADB (Android Debug Bridge) or the Link2SD application. These methods require additional actions, but you can transfer even “unbearable” applications.
Method 1: Transfer over ADB (for power users)
This method works on Redmi 8A with the bootloader unlocked or USB debugging enabled.
- Turn on Settings → About Phone → MIUI version (click 7 times to activate Developer Mode).
- Return to Settings → Additional → For developers and enable USB debugging.
- Connect your phone to your PC, install ADB Tools and execute the command:
adb shell pm set-install-location 2This command forces the system to install applications on SD-The default card. To get back to the original settings, use:
adb shell pm set-install-location 0Method 2: Annex Link2SD
Link2SD allows you to create symbolic links to applications, effectively "cheating" the system, requiring root access or a patch through Magisk.
- 📥 Install. Link2SD Google Play.
- 🔧 Provide root access (if any).
- 🔄 Select the application and click Create a link.
- 📁 Transfer the data to SD-map.
⚠️ Attention: Use Link2SD root-free can cause app failures.Redmi 8A s MIUI 12 This method works unstable – test on non-critical programs.
5.Memory optimization after transfer
After the transfer of applications to SD-The card is recommended to perform several actions to optimize the system:
- 🧹 Clear the app cache in Settings → Warehouse → Clean up.
- 🔄 Reboot your phone – this will help the system correctly recognize new paths to files.
- 📊 Check the space in internal memory: if it is less than 1 GB, move a few more applications or delete unnecessary files.
- 🔒 Turn off autoloading media files in instant messengers (for example, WhatsApp or Telegram) so that they do not take up space on the internal drive.
A critical nuance for Redmi 8A: if SD-With less than 10% of the available space, the transferred applications may start to slow down or stain. It is recommended to leave at least 5-10 GB free.
💡
To speed up the work of the transferred games, move to SD-Map only the main files (APK and OBB), and leave the cache in the internal memory. → Move the memory card only for basic data.
Frequent questions and myths about the transfer to SD-map
Around the transfer of applications to SD-There are many myths in the map:
- ❌ "Transfer impairs performance" - partly true only for slow cards (class) 4/6). Nana UHS-I (U3) speed difference is minimal.
- ❌ "Annexes to SD-The updates work fine if the card is formatted as internal memory.
- ✅ "Not all apps can be ported, right. System utilities and some games (like Genshin Impact) block the transfer.
- ❌ "SD-card as internal memory reduces its life" - wrong. Modern cards (especially with SLC-cache) are designed for intensive use.
If you are in doubt about whether to port apps, do a test: transfer 2-3 non-critical programs (for example, Duolingo or Adobe Acrobat) and check the stability of the work throughout the day.