Owners of Xiaomi, Redmi and Poco smartphones often face a situation where when trying to open files on an external memory card, the system gives a message about an access error. This is the standard Android security mechanism, which in the latest versions of the MIUI and HyperOS shell has become even more stringent. The operating system restricts arbitrary access of applications to system folders and external drives to prevent data leakage or accidental deletion of important files.
For the user, this means that a simple conductor may not see the contents of a flash drive without your direct confirmation. Permission to access is not just a formality, but a necessary step for full multimedia work. Without this, you will not be able to save downloaded files, take a photo to a specific folder or run a video from a third-party player.
In this article, we will discuss how to properly grant access rights, why errors occur, and what tools are best used to manage files on Xiaomi, and you will learn how to bypass system restrictions with legal methods and configure the device so that it works steadily.
Why the system blocks access to the drive
Since Android 11 and up, Google has implemented a Scoped Storage policy that isolates each application’s data, preventing them from freely scanning the entire external drive. On Xiaomi smartphones, this is implemented through a special system component that requires manual confirmation of user actions when first accessing the memory card file system.
Often users confuse a physical card malfunction with a software lock, and if the phone sees the card, makes a connection sound, but doesn't let you open the folders, then it's about the access rights, and the MIUI security system prevents malware that could copy your personal photos or documents without knowing.
⚠️ Warning: Never attempt to obtain Root rights solely for the sake of accessing files.This will disrupt banking applications and may result in the loss of warranty on Xiaomi device.
In addition, the file system of the card can be formatted in a format that requires special drivers or write rights. Xiaomi’s standard file manager usually requests the necessary permissions itself, but third-party applications (such as VLC or MX Player) must receive them separately for each session or when first installed.
Preparation of the memory card for work
Before you set up the permissions, you need to make sure that the physical connection is done correctly. The SD card slot in Redmi and Poco smartphones is often combined with the slot for the second SIM card. It is important to install the card correctly, before clicking, and make sure that the tray fits tightly to the case.
Once installed, the system must automatically identify the new drive. The notification curtain will show a message. If this does not happen, check the formatting. To work with modern versions of Android, Xiaomi recommends the exFAT or FAT32 file system. NTFS format may require drivers or not supported at all without special applications.
☑️ Checking the map's readiness
If the card is new, the phone will prompt it to be formatted. Remember, this action will delete all data. Once formatted, the system will assign the drive a unique identifier that will be used when issuing permissions. Make sure that the memory settings select the Removable Drive mode rather than Internal Memory mode if you plan to move the card to other devices frequently.
How to grant permission through a standard conductor
The easiest and most reliable way to access files is to use Xiaomi’s built-in Explorer (or Files) app. It already has the necessary system certificates. When you first start or try to go to the SD card section, you will see a pop-up requesting it.
This window will contain text that the application needs access to media files. You must click the Allow or Grant button. In some versions of MIUI, you will need to additionally go to the application settings via the phone menu and manually switch the "Access to Files and Media" slider to the "Allowed" position.
If no automatic request appears, follow the following steps manually:
- 📱 Open the smartphone settings and find the Application section.
- 🔍 In the list, find your file manager (e.g., Explorer).
- 🛡️ Go to Application Permissions or Rights.
- 💾 Select Files and Media Category and set the value Allow Managing All Files.
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If the standard conductor doesn’t see the card, try restarting the smartphone after installation. SD-This will start the process of indexing the files again.
After these steps are done, the standard interface should display all folders, including hidden Android/data system directories, which are also restricted in the latest OS versions.
Adjusting access for third-party applications
This gets complicated when you want to use a third-party file manager, such as Total Commander, FX File Explorer or MiXplorer.These applications do not automatically access the root directory of the memory card for security reasons.
When you first try to open the folder on SD-A third-party application card will open a system window with the title "Access to a folder" at the bottom of this window will have a button "Use this folder"; it is critical to click on the sdcard root folder (often designated as a number like 1234-5678), Not a specific subfolder inside it.
Once you select the root directory, click the confirmation button, which gives the application full read and write rights to any point on the external drive, and without this step, many functions, such as clearing the cache or sorting files, will not work.
⚠️ Be careful when granting control over all files to unknown applications, giving them full power over your data, including the ability to delete personal photos and documents.
Some specific tasks, such as installing mods in games or working with system logs, may require access via ADB (Android Debug Bridge), an advanced method that requires a connection to a computer.
adb shell pm grant com.example.app android.permission.READ_EXTERNAL_STORAGE
adb shell pm grant com.example.app android.permission.WRITE_EXTERNAL_STORAGEHowever, for most household tasks (copying photos, music, video) standard confirmation through the interface described above is sufficient. Use of the command line is justified only in the rare cases when the graphical interface blocks access.
Addressing access problems
Even after permissions are granted, errors can occur. One of the most common is the message "failed to access" or "file corrupted." Often this is not due to rights, but to the file system. If the card is formatted in NTFS, standard Android can only read files, but not write them. For full compatibility, it is better to reformat the card to exFAT.
Another problem is application conflict: If multiple programs are trying to access the map, the system can block second requests, close all background applications that work with files and try again, and clean up the cache of the Downloads or Files app itself helps.
Below is a table of possible errors and methods of their solution:
| Mistake. | Probable cause | Decision-making |
|---|---|---|
| "Access denied" | No permission is granted in the settings | Manually confirm access through the system window |
| "File damaged" | File system errors | Check the card on the PC utility chkdsk |
| "Not enough rights." | Attempting to write to the system folder | Use the DCIM or Download folder |
| Map not determined | Physical contact or format | Translate the map, check the format (FAT32/exFAT) |
If the problem persists, try extracting the map, erase the contacts with an eraser, and paste them again. Contact oxidation is a common cause of connection loss, which users mistakenly mistake for a MIUI software failure.
Features of working with the Android folder in new versions
In Android 11, 12, 13 and 14, access to the Android/data and Android/obb folder on the external drive was completely closed to most applications. This is done to protect the app cache. Even if you gave full permission to the file manager, when you try to log into this folder, you can see an empty screen.
To get around this restriction without root rights, you can use special methods, for example, in the ZArchiver or MiXplorer application you need to select the option "Access to the File System" (SAF) and manually specify the path, and the system will again request the confirmation "Use this folder" for the Android directory.
Can I delete the Android/data folder?
Some users prefer to use a computer to manage these files. When you connect your phone to your PC in MTP mode, access to these directories can also be limited, and only use wireless transmission protocols like FTP or SMB, which some file managers are able to raise with increased privileges, will help.
It’s important to understand that every HyperOS update can change security algorithms. What worked on the Mi 11 a year ago may require additional steps on the Xiaomi 14. Always watch for updates to the conductor apps themselves, as their developers promptly release patches to bypass Google’s new restrictions.
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Full file management rights give access to the entire file system, but increase the risk of accidental deletion of important system data.