Xiaomi smartphone owners often face the need to manage system files, especially when it comes to heavy gaming or specific applications. Android/obb folder is a key repository for cache data, without which many programs simply refuse to run properly. Understanding how to access this partition becomes critical when manually installing modifications or recovering lost data.
With the release of new versions of Android, particularly since the eleventh version, Google has significantly tightened its security policy, and now access to the obb directory is limited even to standard file managers, which raises questions among users of Redmi and Poco devices.
Don't be intimidated by technical terms or the apparent complexity of the process. Android is logical, and with the right approach, you can easily manipulate the content of hidden folders. We'll look at both the standard MIUI shell tools and third-party solutions that are guaranteed to work on modern models.
What is an obb folder and why you need access to it
The obb directory (an acronym for Opaque Binary Blob) is designed to store additional application resources. Unlike standard data, which takes up space in the application section, it contains heavy textures, music, maps and videos for games. Without access to these files, it will be impossible to run the same PUBG Mobile or Genshin Impact, since the launcher simply will not find the required resources.
The main problem faced by Xiaomi users is that the standard Files Explorer often hides the contents of this folder or prohibits editing it.This is done to protect the system from accidentally removing important components. However, when manually installing games or mods, the user needs to gain full control over this area.
Why did Google restrict access?
It is worth noting that improper interference with the structure of files can lead to malfunctioning programs. If you plan to transfer cache or replace files, make sure you know exactly what you are doing. Violation of the integrity of files in the obb folder can lead to the game crashing at the boot stage or the application completely fails to start.
Why standard Explorer doesn’t see files on new Android
Starting with the MIUI 12.5 shell and up, which is based on Android 11+, the built-in file manager stopped displaying the contents of the Android folder by default. It's not a bug, but a security feature. The system blocks direct access to the root directory of applications so that no program can steal the data of another without the user's knowledge.
When you are trying to open Android/obb You either see an empty folder through a standard application, or you get an access error message, which means that the current process doesn't have the necessary privileges. MIUI strictly enforce these rules, ignoring attempts by standard means to circumvent the restrictions.
- 📂 Restricting access to system partitions for third-party applications.
- 🔒 Blocking recording and changing files without special permissions.
- 🙈 Hiding the contents of the folder to prevent accidental deletion.
Many users mistakenly believe that their phone is damaged or files are missing, and the data is actually in place, but the door is locked with a special lock, and to open this lock requires the use of specialized software that can request extended access rights from the system through a special API.
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Xiaomi’s standard Explorer does not show files in the obb folder due to the Android Scoped Storage security policy introduced in versions 11 and above.
How to Open Obb on Xiaomi with ZArchiver
The most effective and proven way to access hidden files is to use a third-party ZArchiver archiver, which has a special mechanism to ask Android for permission to access the Android folder, after which the lock is removed.
First, you need to download and install the app from the official Google Play store. Once you run, you'll see the file manager interface. Go to the root of the internal memory and find the Android folder. The first time you try to log in, the system will issue a request for confirmation of access.
☑️ Algorithm of actions in ZArchiver
It is important to keep a close eye on pop-ups. MIUI can ask you several times for confirmation, you will need to click the Allow button, and then select the Allow management of all files option in the system window that appears, only after that ZArchiver will have full read and write rights.
Once you’ve successfully completed these steps, you’ll be able to freely copy, delete and move files within obb. This is ideal for those who don’t want root rights but need full control of their Xiaomi smartphone’s file system.
Using Total Commander to Manage Files
Another powerful tool popular with Android device owners is Total Commander, a file manager known for its stability and plug-in support, and newer versions of MIUI require customization to work with system folders.
When you first start up and try to log into the Android directory, the app will suggest using System Document UI, which you have to accept, and this will switch the file engine to the system level, which will bypass standard visibility restrictions.
Unlike other managers, Total Commander allows you to create complex scripts and use plugins to work with archives and network storage, making it an indispensable tool for managing files on your device, but the interface can seem overloaded to beginners.
⚠️ Warning: When working with Total Commander, be careful with the Delete feature.In Full Access mode, you can accidentally delete critical system files, which will cause Xiaomi to crash.
If you’re used to the classic dual-panel interface, this is the best option for you, providing quick access to hidden partitions and making it easy to move large amounts of data between obb and data folders.
Access to obb via computer and ADB
For users who prefer to work with files on a large screen, there is a method of connecting a Xiaomi smartphone to a computer. USB, You're likely to face a restriction on access to your Android folder again. MTP does not always transfer full rights.
To get around this, you can use ADB (Android Debug Bridge) debugging. This method requires you to turn on the developer mode on your phone. Go to Settings → About phone and quickly press 7 times on the MIUI build number. Then activate USB debugging in advanced settings.
adb shell pm grant com.android.documentsui android.permission.MANAGE_EXTERNAL_STORAGEExecuting such a command via a console on a PC can force the system file manager to have rights that can then be accessed when connected via USB. However, this method requires technical knowledge and installing Xiaomi USB Drivers on the computer.
The alternative is to use a wireless protocol. FTP or SMB, And so, once you've built a server on your phone, you can connect to it from your PC and access the file system. USB-Connection on some versions of Windows.
Solving Access and Error Problems
Even with the right tools, there can be errors, and users often find themselves in a situation where files seem to be copied, but the game says, "Download resources," which can mean that folder structure is broken or access rights are not applied correctly.
Make sure that the path to the files is absolute and accurate, for example, the cache file for the game must lie strictly along the path. Android/obb/com.name.game/. If you put it in an obb without a packet folder, the app won't be able to find it. Also make sure the folder name matches the game packet name.
| Problem. | Possible cause | Decision |
|---|---|---|
| File is empty | No access rights. | Use ZArchiver and confirm access |
| Copying error | Memory deficit | Clear the space in the internal storage |
| The game doesn't see files | Wrong structure | Check the path and name of the package folder |
| Files disappear. | Antivirus or cleaning | Disable Aggressive MIUI Optimization |
Another common problem is the operation of Cleanup in MIUI. An aggressive algorithm can delete files it considers "junk" if they lie in non-standard places. Add a file manager and a game of auto-run and cleanup exceptions so that the system doesn't touch your data.
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Tip: If you manually transfer the cache, do not open the game immediately after copying.Reboot the device so that the Android system indexes new files and updates access rights.
Do you need Root rights to work with obb?
The question of whether to obtain superuser rights (Root) remains relevant. Most tasks to install a game cache or transfer rooting files do not require, methods using ZArchiver or Total Commander allow you to fully control the obb folder without hacking the system.
Root rights give you absolute control over the device, allowing you to remove system applications and modify the kernel. However, on Xiaomi smartphones, obtaining root rights (via Magisk) requires unlocking the bootloader. This is a complex process that dumps all data from the phone and disrupts banking applications and Google Pay.
⚠️ Attention: Unblocking the bootloader and obtaining root rights on Xiaomi may lead to loss of warranty and inability to use some protected applications (banks, NFC-Payment. Only do this if you are an experienced user.
If your goal is to simply open an obb and upload files, don’t risk system stability. Current methods of accessing the Android 11+ API completely cover the needs of 99% of users. Root is redundant in this context and carries more risks than benefits.