Mobile games with modern graphics levels take up gigabytes of free space, often exceeding the size of standard applications by tens of times. The bulk of the data is usually stored not in the APK installation file itself, but in additional resources that the system or user must place in special directories. Understanding where to extract the cacheis critical for launching heavy projects such as Genshin Impact, PUBG Mobile or Asphalt.
Owners of Android devices are often faced with a situation where, after installation, the game gives an error or requires re-downloading resources. This happens if the files are not unpacked to the path expected by the application engine. In this article, we will analyze the structure of the file system, features of Android 11 and higher, as well as methods of manual and automatic data transfer.
Incorrect placement of files can lead to the game simply not starting, showing a black screen or crashing to the desktop. It is important to distinguish between the concepts cache, Obb and Data, since each type of file has its own strictly defined place in the logical structure of the storage. Let's analyze these nuances in detail so that you don't have any problems launching your favorite title.
Structure of game files: OBB and Data
Before you start manipulating files, you need to clearly understand what exactly you are going to move. Game resources on Android are divided into two main categories, each of which requires its own registration location. Typically these are files with the extension .obb (Opaque Binary Blob) and folders with additional assets in Data.
OBB files contain multimedia resources: high-resolution textures, music, 3D models and levels. They are not encrypted and can be read by the system, but for the games to work they must be in a strictly designated place. The Data folder often contains configuration files, progress saves, and cached data necessary for quickly loading interface elements.
Path to files is crucial. If you downloaded the game archive, inside you will most likely find a folder with a name corresponding to the application package (for example, com.rockstar.gta3). Inside this folder there can be both OBB files and Data subfolders. They cannot be mixed or placed in the root of the internal memory.
How to find the package name of the game?
Package Name is a unique application identifier. It can be found on the game's Google Play page (in the URL after id=) or in the properties of the APK file. It is by this name that the system searches for resources.
It is important to note that modern versions of the operating system introduce restrictions on access to system folders. This is done in order data securityto prevent malware from scanning the contents of other applications. Therefore, a standard file manager may simply not show you the necessary directories without special permissions.
Standard placement paths on internal memory
In the vast majority of cases, when you install a game from Google Play, the system automatically creates the necessary folder structure. However, if you install manually (for example, from third-party stores or modified versions), you will have to do it yourself. The standard path for placing the cache is in the root of the internal memory.
The main directory where files should be extracted is called Android. Inside it there are two key folders: obb and data. The full path is as follows: /storage/emulated/0/Android/obb/ for binary files and /storage/emulated/0/Android/data/ for application data.
Consider a table that will help you navigate the types of files and their purpose:
| File type | Folder destination | Example content | Expansion |
|---|---|---|---|
| OBB | Android/obb/[package_name] | Textures, music, maps | .obb |
| Data | Android/data/[package_name] | Saves, engine cache | Various |
| SD Data | Android/data/[package_name] | On SD card (rarely). Simply uploading the file | Various |
Please note that the folder with the package name (for example, com.epicgames.fortnite) must be created inside a folder obb or data, and the files are laid out inside it. Just upload the file main.123.com.game.obb to the root Android/obb will be a mistake.
Always check the name of the package folder. It must exactly match the name that the game's APK file expects. Even one wrong character will result in the game not seeing resources.
Features of Android 11, 12, 13 and later
Starting with the eleventh version of Android, Google has implemented a policy Scoped Storage (Limited storage). This change dramatically affected the way applications and users interact with the file system. Now access to the folder Android is closed by default for most file managers.
When you try to go to Internal Storage > Android > data through standard Explorer, you may see an empty folder or a message about lack of rights. This is not a bug, but a security feature. The system requires explicit user permission to access these system partitions.
⚠️ Attention: On Android 11+, standard copy methods may not work. You will need to either use the built-in Files tool (Files by Google), or third-party managers that can request special access rights (for example, ZArchiver, Total Commander with a plugin).
To successfully transfer the cache on new versions of the OS, you must click the "Allow" button in the system window the first time you access the folder. Without this step, Android Click the "Allow" button in the system window. Without this step copying files will be blocked by the operating system, and you will receive a notification that access is denied.
Using external storage (SD card)
Many users prefer to store large games on a memory card so as not to fill up the internal storage of the smartphone. However, there is an important nuance here: modern games are increasingly less likely to support installing a cache on an external drive. This is due to read speed limitations SD cards and security requirements.
If your game or file manager supports working with external memory, the path will look similar to the internal one, but indicating the specific card ID. For example: /storage/[ID-cards]/Android/obb/. However, you should be prepared for the fact that the game may refuse to launch from an external drive.
In addition, on Android 10 and higher, access to the folder Android on the SD card is also limited. The file manager will ask for permission to manage files on the external storage device. If you are transferring a game from one phone to another, the folder structure on the SD card must be completely preserved.
☑️ Preparing to transfer to an SD card
Using format memory cards exFAT preferable than FAT32, since the latter does not support files larger than 4 GB, which is critical for modern heavy games with high-quality textures.
Tools for file management
The standard explorer that comes with the phone is often not enough to properly manage the game cache, especially on new versions Android. You will need more advanced tools that can work with system hidden folders and request the necessary permissions.
One of the most popular and reliable solutions is the application ZArchiver. It allows you not only to unpack archives (zip, rar, 7z), but also has built-in functionality for working with the Android file system, bypassing some of the limitations of Scoped Storage.
Other useful utilities include Total Commander (with a plugin for root/access), FX File Explorer or Solid Explorer. These apps provide a convenient two-panel interface, which greatly simplifies the process of moving files from the downloads folder to system directories.
Additional opportunities open up for users who have root access. Using file managers with superuser access (for example, Root Explorer or MiXplorer), you can edit system files and place the cache in any protected partitions, although in standard situations this is no longer necessary.
Typical errors and ways to solve them
Even following instructions, users often make mistakes that lead to the game not working. The most common problem is incorrect folder nesting. Often users unpack the archive in such a way that a path like Android/obb/com.game/com.game/...is obtained, creating a duplicate structure.
Another common mistake is ignoring the case of letters. The Android file system is case-sensitive. Folder Obb and folder obb are different directories. All system folders must be named strictly in lowercase, as required by the standard.
⚠️ Attention: If after transferring the cache the game requires you to download the data again, check the access rights to the folder. Sometimes, after transferring files, the system resets permissions, and the game needs to be launched once with administrator rights or simply rebooted.
It is also worth considering the integrity of the files. If downloading or copying to SD card fails, the OBB file may be damaged. In this case, the game will crash at the developer logo stage. Checking the checksums or re-downloading the file may solve the problem.
The main cause of errors is a violation of the folder structure. The path must be strictly: Android/obb/packagename/file.obb. Any unnecessary levels of nesting will lead to failure.
FAQ: Frequently Asked Questions
Is it possible to delete the OBB folder after installing the game?
No, you cannot delete the OBB folder. Unlike the temporary cache, OBB files are the main game resources (graphics, sound). If you delete them, the game will stop launching or require gigabytes of data to be downloaded again.
Why can't my phone see the files on the SD card?
Most likely, the card is formatted in a file system that your phone can't read, or the file table is corrupted. It is also possible that the game simply does not support running from an external drive due to Android limitations.
How to transfer the cache without losing data?
Use the "Move" or "Copy" function in the file manager, rather than "Cut", until you are sure that the files have been copied successfully. It’s better to first copy, check the game’s operation, and only then delete the original.
Where is the Telegram or YouTube cache located?
The cache of social networks and video hosting sites is usually located along Android/data/ in the folder of the corresponding application (for example, org.telegram.messenger). However, it is better to clean it through the settings of the application itself, so as not to damage the message database.
Are root access needed to transfer the cache?
On Android 10 and below - no. On Android 11+, root access is not required, but special file managers are required that can request access to system folders via the system API (SAF).