Xiaomi Redmi 9 โ One of the most popular budget smartphones, but its main drawback is the fact that it is a big one. 32/64 GB of internal memory. If you are actively playing Genshin Impact, Call of Duty Mobile or PUBG, The free space ends in a matter of days. SD-But it's not that simple โ MIUI It imposes restrictions, and some games (especially those with anti-piracy protection) may refuse to work with an external drive.
In this guide, we will break down three proven ways to port games to microSD in Redmi. 9 (including Redmi models 9A/9C/9T), We'll tell you how to format your memory card correctly, and we'll warn you against common mistakes, and we'll also tell you which games you can't transfer to. SD-card without root rights, and how to circumvent this restriction by legal methods.
Preparation: which SD-Choose a map for Xiaomi Redmi 9?
Not every memory card is suitable for installing games. Cheap microSD Class 4/6 can slow down levels or even cause crashes. Redmi 9 is best suited for the following characteristics:
- ๐น Class speed: UHS-I U1 (minimally U3/A2 (recommended). Maps A2 specifically optimized for application installation.
- ๐น Volume: from 64 GB (32 GB games will fill up space quickly), maximum 512 GB MIUI It may not see more than 256 GB).
- ๐น Brand: SanDisk Ultra, Samsung EVO Plus, Kingston Canvas Go! Plus. avoid no-name cards - they're often forged.
โ ๏ธ Note: If you bought an exFAT card (often in volume) >64 GB, it will have to be reformatted to FAT32 or NTFS Redmi 9 does not support exFAT out of the box".
| Characteristics | Minimum. | Recommended | Note |
|---|---|---|---|
| Class speed | U1 | U3/A2 | A1 cards will do, but will be slower. |
| Volume. | 32GB | 128-256 GB | 32 GB will fit 2-3 major games |
| File system | FAT32 | NTFS | FAT32 limits file size to 4GB |
2. Method 1: Transfer games through Android settings (without root rights)
It's the easiest method, but it doesn't work for all games, because developers can block the portability, but it's worth trying:
- Open Settings โ Applications โ Application Management.
- Choose the game you want to migrate (like Brawl Stars or Clash of Clans).
- Press Warehouse. โ Change. โ SD-map.
- Confirm the transfer. The process may take a few minutes.
โ ๏ธ Note: Some games (such as Genshin Impact or Honor of Kings) will not allow you to transfer the main files, only cache.
Insert SD-slot card (not adapter!)
Check the free space on the map
Close the game before the transfer
Connect charging (process drains battery)-->
3. Method 2: Use of SD-The card as an internal storage (Adoptable Storage)
This method allows the system to be โdeceivedโ by making it perceive SD-The advantage is that games will be automatically installed on the card:
- ๐ธ The card will be encrypted and will not be read on other devices.
- ๐ธ After the map is removed, the applications will stop working.
- ๐ธ Some games (Denuvo or Unity protection) IAP) may not be launched.
Instructions:
- Put it in. SD-smartphone-card.
- Go to Settings. โ Warehouse โ SD-map โ Set up โ Internal memory.
- Follow the instructions on the screen. Attention! All the data on the map will be erased.
- After formatting, select Move Data Now (optional).
What if the internal memory option is inactive?
Method 3: Transfer over ADB (for power users)
If the previous methods didnโt work, you can use Android Debug Bridge (ADB). This method allows you to manually specify to the system which applications should be stored on the SD-It doesn't require root rights, but it does require basic command line skills.
Instructions:
- Download ADB Tools and unpack the archive on your computer.
- Turn on Redmi 9 Developer Mode (7 times click on the MIUI version in Settings โ About Phone).
- Activate Debugging by USB in Settings โ Additional โ For developers.
- Connect the phone to the PC and type in the command line:
adb shell pm set-install-location 2This command will force the system to install applications on default SD-To get it back, use the map:
adb shell pm set-install-location 0๐ก
If the game is slowing down after the transfer, try clearing its cache in Settings โ Apps โ [Game] โ Storage โ Clear the cache. Sometimes this eliminates the lags.
5 What games cannot be transferred to SD-map?
Some games use anti-piracy protection or require high speed data reading, so they block work from external drives. Here is a list of problematic games (as of 2026):
- ๐ฎ Genshin Impact โ Transfer is only possible via Adoptable Storage, but there may be lags.
- ๐ฎ Call of Duty: Mobile โ some files remain in internal memory.
- ๐ฎ PUBG Mobile (and Battlegrounds Mobile India) โ requires root rights for full port.
- ๐ฎ Honor of Kings (and other games from Tencent) โ blocks installation on the game SD.
- ๐ฎ Games with Google Play Games (such as Diablo Immortal) โ may not save progress.
๐ก
If the game refuses to work after the transfer, try reinstalling it directly on the game. SD-Map (on Google Play, select map as installation location).
6. Common mistakes and how to avoid them
Many users experience problems after they have moved games, and here are the most common mistakes and solutions:
| Problem. | Reason. | Decision |
|---|---|---|
| The game flies off at launch | Low reading speed SD-map | Buy an A2/U3 card or transfer the game back. |
| There's not enough room for SD-map | FAT32 File System Limits File Size | Format the map in NTFS via PC |
| The game doesn't keep progress | The data is stored in the internal memory | Use cloud storage (e.g. Google Play Games) |
โ ๏ธ Note: If you used Adoptable Storage and decided to remove it SD-map, pre-transfer all applications back to internal memory via Settings โ Applications. Otherwise they'll stop working!
7. Alternative ways to free up memory
If the games are transferred SD-The card is not helpful or impossible, try these methods:
- ๐๏ธ Cache cleaning: In Settings โ Warehouse โ Clean up unneeded files (especially Google Play Services cache).
- โ๏ธ Cloud Savings: Games like Clash Royale or Among Us let you sync your progress with your Google account.
- ๐ฑ Pc portability: Use the Mi PC Suite for backing up games to your computer.
- ๐ Lite versions of games: For example, PUBG Mobile Lite or Call of Duty: Mobile Lite take up 2-3 times less space.
๐ก
Redmi 9 has a hidden garbage cleanup feature: go to Security โ Cleanup โ Deep Cleanup and select System Garbage. This can free up up to 1-2 GB of space.