Owners of the popular Xiaomi Redmi 8 Pro smartphone often face a lack of free space for installing apps and games. Standard internal memory, even in top-end versions, is quickly filled with multimedia files and social media cache. There is a natural desire to transfer all data to a microSD card to unload the system partition. However, the standard shell MIUI does not allow you to simply use the flash drive as part of internal storage.
There is a proven technical method to circumvent software limitations, which requires debugging over USB and executing special commands via a computer. It is important to understand that the process requires care, since it is working with system parts of the device. In this article, we will discuss in detail how to combine internal memory and memory card on Xiaomi Redmi 8 Pro without losing warranty and risk turning the phone into a brick.
Before you start taking action, you need to prepare all the tools and back up your important data. Memory integration involves formatting the card, so all the files on it will be permanently deleted. Data security is the number one priority, so don't ignore the backup phase.
⚠️ Attention: All actions you perform at your own risk.The author of the article is not responsible for possible data loss or device malfunction in case of incorrect execution of instructions.
Preparation of the smartphone and the choice of memory card
The success of the operation depends on the quality of the drive used. For Xiaomi Redmi 8 Pro, it is highly recommended to use memory cards of the Class 10 standard or higher, preferably with the UHS-I marking. Cheap and slow cards will lead to a strong interface braking and long application load.
The first step is to insert the memory card into the smartphone slot. Once the device is turned on, go to the settings menu and find the "About" item. Here you need to quickly click on the MIUI version seven times to activate the developer mode. Without this step, further manipulation is impossible.
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Use memory cards up to 128GB for maximum compatibility. 256GB and up cards can run unstable on older Redmi 8 Pro controllers.
Next, turn on the debugging. USB. To do this, go along the Settings path. → Advanced settings → For developers, activate the appropriate switch, and make sure that the same menu has an option on. USB-Debugging (Safe Settings) if available in your firmware version.
- 📱 Make sure your battery is over 50% before starting the procedure.
- 💾 Format the memory card into the file system FAT32 via phone menu.
- 🔌 Use an original or quality cable USB PC-connect.
- 🔒 Remove the screen lock (pin code or pattern lock) at the time of setting up.
Installation of ADB drivers and tools on your computer
To interact with the Xiaomi Redmi 8 Pro file system at the command line level, you need Android Debug Bridge (ADB) tools. This is a standard utility from Google that allows you to send commands directly to the Android operating system. Without it, you can not combine memory partitions.
Download the current version of Platform-tools from the official developer site. Unpack the archive into the root folder on disk C: so that the path does not contain Cyrillic characters or spaces. The short way will make it easier to enter commands in the future.
If you are using a Windows operating system, you may need to install Google USB Driver universal drivers or Xiaomi specific drivers. These are usually installed automatically on the first connection, but unknown hardware may appear in the Device Manager.
☑️ Verification of PC readiness
Open the command prompt (CMD) or PowerShell. Go to the tool folder using the cd command. For example, if the folder is called platform-tools, the command will look like this:
cd C:\platform-toolsRedmi 8 Pro Connection and Communication Check
Connect your smartphone to your computer through USB-You'll see a request for debugging permission on the screen, and you'll be sure to check "Always allow this computer" and click "OK." If you don't, the computer won't be able to send a command to change the partition structure.
In the command line on your computer, type in the adb device command. If everything is set up correctly, you will see a list of connected devices with a unique identifier and device status. If the status is unauthorized, check the phone screen and confirm access.
Now you need to make sure that the system sees the memory card.
adb shell sm list-disksAnd you'll get a disk ID, like disk:179.64, and write down that number, and it's critical for the next command, and that's the disk we're going to convert into internal storage.
What to do if your computer can’t see your phone?
Memory integration process through ADB teams
So the most important step is that we're going to use the sm partition command, which is going to force the formatting of the memory card and create partitions on it that are identical to the internal memory, and the system will start to perceive the flash drive as an extension of the embedded chip.
Enter the command by substituting your disk ID (in the example used 179.64):
adb shell sm partition disk:179,64 privateOnce the command is executed, the card will be formatted. The phone can freeze for a few seconds or reboot the interface. Don't panic, this is the normal reaction of the system to change the structure of the drives. If the process is successful, the list-disks will no longer show this disk as an external one.
⚠️ Warning: After this command, the memory card will become unreadable on the computer and other devices without special decryption.
The next step is to migrate already installed applications. To do this, go to Apps → Application Management in your phone settings. Select a heavy game or program, click Memory and select Change → Internal Memory (or vice versa if the system offers portability). In some versions of MIUI, this button becomes active only after you reboot.
Default storage setting in MIUI
After successful integration, the Android system on Xiaomi Redmi 8 Pro should offer to move data. However, for new files (photos, videos, downloads), the settings may remain the same.
Go to Settings → Memory. You'll see the combined volume here. Make sure that the default storage for media is the map. In newer versions of MIUI, this option can be hidden, and then you have to manually transfer files through the file manager.
| Parameter | Before joining | After the merger |
|---|---|---|
| File system | FAT32 / exFAT | EXT4 (encrypted) |
| Access to PC | Straight | Only through the phone. |
| Speed of operation | Depends on the class of the card. | Maybe go down. |
| Security | Low. | High (device binding) |
For photos and videos, it is best to set the camera to save files immediately to the external drive. Open the Camera app, click on three bars in the corner, select Settings and activate the Save toggle on SD-This will free up precious megabytes of internal memory.
Possible problems and ways to solve them
There may be nuances in the process, such as some applications that refuse to migrate to an external drive, even when it is combined, a limitation that software developers have put in place, and it is almost impossible to circumvent without root rights.
Another common problem is speed reduction, so if you used a cheap card, the MIUI interface might start to slow down, and then it makes sense to get it back to normal by formatting the card as a portable storage through the memory settings menu.
Also worth mentioning is the stability of the work: a memory card is a mechanical device that is more prone to failure than an embedded chip, and critical system files are best kept on internal memory.
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Memory integration is a trade-off between volume and speed: Use quality cards (Samsung Evo, SanDisk Extreme) to minimize performance loss.
- 🐌 Phone slows down? Return the card to portable storage mode.
- 🚫 It's a limitation of the application itself, not the system.
- 🔄 After updating MIUI The settings may be lost, the procedure will have to be repeated.
How to Get Everything Back (Deactivation)
If the experiment failed or you sold your phone, you need to return the memory card to its original state. Go to Settings → Memory. Click on your card menu and select Format. The system will warn you about deleting the data.
Once formatted, the map will be read again on any computer, and any applications that have been ported to it will stop working and require reinstallation or re-transfer to the internal drive.
Always have an up-to-date backup of contacts and documents in the cloud.