Many owners of the popular Xiaomi Redmi Note 8 Pro smartphone sooner or later face a lack of built-in storage, apps cache, photos and videos take up gigabytes, and the system starts to work slower, and at this point the idea of combining the physical memory of the device with a microSD card to create a single pool for data storage comes up.
Unfortunately, current versions of the MIUI shell do not have the built-in "Adoptable Storage" feature that allows you to turn the flash drive into a partition of the system, but there are proven methods of circumventing restrictions to use the external drive as efficiently as possible.
It should be noted immediately that the complete merger of partitions requires deep intervention in the system or the use of special modes ADB. For most users, the optimal solution will be a competent reconfiguration of the writing paths and use the card as internal storage through the command line, which will free up space in the main partition without the risk of damaging system files.
Features of the MIUI file system on the Redmi Note 8 Pro
Shell MIUI, The Redmi Note 8 Pro has its own unique features of working with external drives. Unlike pure Android, here always prioritizes internal memory. SD-map as a removable medium designed for multimedia, not for installing applications.
This security policy is driven by the manufacturer’s desire to ensure stable operation of the device; the speed of reading and writing the built-in memory chip is much faster than most microSD cards. If you transfer critical system processes to a slow card, the phone can start to slow down.
However, users can manually control where new files are stored, and the camera, voice recorder and browser can be configured to record data directly to an external medium, a first step towards optimizing the space that is accessible to every owner without complex manipulation.
- 📱 Internal memory works at high speeds. UFS, Providing fast application launch.
- 💾 Memory card often becomes a “narrow neck” when installing heavy games.
- ⚙️ MIUI blocks the automatic installation of applications on SD avoidance.
Understanding these constraints helps you choose the right strategy, instead of trying to cheat the system, it's better to distribute the data streams correctly. On the Redmi Note 8 Pro, you can't permanently combine memory into one partition without root rights, but you can redirect the write streams.
Preparation of memory card and smartphone for work
Before you start setting up, you need to make sure that your drive meets the requirements.To work comfortably with modern applications and a high-resolution camera requires a class card at least 10 Class, and ideally – UHS-I or UHS-II. Slow card will negate all the benefits of memory expansion.
Insert the card into the Redmi Note 8 Pro slot and wait for the connection notification. The system will suggest using the drive to store photos and music. Reject automatic settings if you plan to manually control, or agree to basic file sorting. It is important to keep backups of data, as in the formatting process information will be deleted.
After you physically install it, go to the settings menu. Find the partition that's responsible for the storage and check if the card size is correctly determined. If the system sees the drive unstable2, try re-inserting it or erasing the contacts.
Use ADB to activate Adoptable Storage
The most effective way to get Xiaomi to think of the card as part of internal memory is to use the Android debugging bridge (ADB), which does not require root rights, but requires a computer and a USB cable. The essence of the method is to send a special command that formats the card into the ext4 file system and encrypts it for use by the system.
First, you need to activate the developer mode on your smartphone. Go to Settings → About the phone and seven times quickly click on the build number MIUI. After the message “You became a developer” appears, go back to the main settings menu and select More → For developers, you need to include the item "Debugging by USB".
Risks of using ADB
Use of teams ADB If the memory card is of poor quality, it can quickly fail due to the intensive recording of system logs. Also, when you extract the card, the phone will stop seeing the apps that are installed on it until you put it back in or reverse it. Connect the phone to your computer, install the drivers. ADB And open the command line. Type a command to connect to the device, and then format it. The command looks something like this: adb shell pm set-install-location 2 However, the more complex sm command is used to completely merge. Once it's done, the map will be formatted and unreadable on other devices without unlocking on that particular smartphone. 💻 A PC with installed is required ADB and Xiaomi drivers. 🔓 You need to include debugging on USB developer-menu. ⚠️ All the data on the map will be permanently deleted, and after the command is successfully executed, the system will suggest moving the data, and select the "Move everything" option to free up the internal memory as much as possible. Now, apps and their data will be installed by default on an external drive, unless the developer explicitly forbids it. Customizing ways to save photos and videos Even without deep system integration, you can significantly offload internal memory by changing the ways you store media. The camera on the Redmi Note 8 Pro allows you to flexibly configure recording settings. Go to the camera application settings and find the item responsible for priority storage. Activate the option "Save to the camera". SD-Now all the images and videos will be sent directly to the external media. This is especially true for owners who are shooting high-resolution videos. 4K, Because these files take up a lot of space, the internal memory parameter. SD Map Recording speed High (UFS 2.1) Depending on card class Reliability High Average Access from PC Requires cable/mode MTP Similar settings are available in popular messengers such as Telegram and WhatsApp, and each app’s settings can specify a path to save the received files, which will prevent duplicate data when a copy of the file is in both the app’s cache and the gallery. Transfer of installed applications to SD-Once the system is set up, many users want to move the already installed games and programs. MIUI This process does not always go smoothly. Go to Settings. → Annexes → All applications, select the desired program and find the button "Move to" SD-If the button is inactive (gray), the app developer has banned the transfer, a common situation for banking applications and some Google system services, and attempts to circumvent this ban can lead to malfunctioning of the software. For mass transfer, third-party utilities can be used, for example, App2SD. They help you identify applications that you can move and perform the operation in semi-automatic mode. However, remember that running heavy applications from a memory card can take longer. 🚀 System applications are not recommended to be ported. 📉 The speed of downloading games from the card may be lower. 🔄 Widgets on the desktop may stop working after the transfer. ⚠️ Note: When transferring the application, its data (save, cache) is also moved. Make sure that the memory card is reliable, otherwise you risk losing progress in games or setting up programs. Possible problems and ways to solve them During the operation of combined or extended memory, errors may occur. Often users complain that the phone stops seeing the card or apps fly out of it. First of all, check the physical contact: remove the card, wipe the contacts with an eraser and paste again "SD-The card is damaged, try formatting it again through the smartphone menu. The file system may have been damaged by a sudden power outage or by removing the card during recording. FAT32 exFAT. 📊 What problem do you most often encounter?The map is not determined Apps fly out Slow work of the phone Not enough space even with the card Another common problem is the slow operation of the interface after activating Adoptable Storage. This suggests that the card speed is not enough for the operating system to work, so it is better to abandon the idea of merging and use the card only to store photos, returning applications to internal memory. ⚠️ Note: If, after formatting the card through ADB The phone has gone into a cyclic reboot, you need to boot into Recovery mode and reset your settings (Wipe Data. FAQ: Frequently Asked Questions: Can I Unify Memory Without a Computer? MIUI — No. Adoptable Storage requires commands. ADB. Without a PC, you can only transfer individual applications and files if you can do so in the settings of a particular application. Will the warranty fly when using ADB? Using USB debugging and ADB commands is not in itself a violation of warranty obligations, as it is a standard Android developer tool. However, if you damage the phone's software with your actions, the service center may refuse to repair free of charge. Why did the application stop working after transfer? The memory card probably has a low read/write speed or is damaged. Also, some applications require access to internal storage to operate their services. Try to return the application to internal memory by your actions. What is the service provider's official support for the 512 Note card? However, in practice, the device often works correctly with 1TB cards if they are formatted into an exFAT file system. 💡The best strategy for the Redmi Note 8 Pro is not to try to completely replace internal memory, but to use it. SD-map as a specialized storage for multimedia and rarely used applications.