Access to system files of the Android operating system is often required by advanced users who want to remove pre-installed software, replace fonts or change interface settings. However, the standard file manager hides this data from the eyes of the average user for the security of the device. System partition contains critical components without which the smartphone cannot boot, so manufacturers deliberately limit access to it.
In this article we will look in detail at how to find the Android system folder, using various methods: from simply connecting to a computer to using the ADB console and obtaining root access. You will understand the directory structure and learn what risks there are when interfering with work system kernel. Remember that careless actions can lead to the gadget becoming bricked, so follow the instructions carefully.
Where the system directory is physically located
Inside the Android file system, system files are located in the root partition, which is designated as /system. This is not the folder you see when you normally connect your phone to a PC in file transfer mode. The standard MTP (Media Transfer Protocol) shows the user only writable areas, such as Internal Storage or DCIM.
To see the true structure, you must have superuser access or use special debugging tools. Inside the directory /system all pre-installed applications, libraries, fonts and configuration files are stored. Modification the contents of this folder are only possible if you have an unlocked bootloader or superuser rights.
It is worth noting that on modern devices with the Android version 10 and higher uses a dynamic partition system. This means that the path to system files may be hidden behind an abstract partition management layer. However, the logical path /system remains relevant for most modding operations.
⚠️ Warning: Making changes to files inside the /system folder may lead to an endless reboot (bootloop) or complete inoperability of the device. Always make a backup before editing.
If you just want to free up space, deleting system files is not the best option. It is better to use the "Clean memory" function in the settings or delete the application cache.
Viewing system files via a PC connection
The easiest way to try to access system data is to connect your smartphone to the computer via a USB cable. However, by default you will only see the user storage. To view hidden sections, you need to activate the debugging mode and use specialized software.
First enable Developer mode. Go to Settings → About phone and quickly click 7 times on the "Build number" item. After this, a new section “For Developers” will appear in the settings menu, where you need to activate the switch USB debugging. Without this step, the computer will not be able to interact with the phone's system services.
Next, use the ADB (Android Debug Bridge) app. This is a universal tool that allows you to send commands to the device. After installing the drivers and utility on your PC, connect your phone and enter the command in the terminal:
adb devicesIf the device is detected, you can try to access the file system. However, remember that on non-rooted devices, the command adb pull for system folders often returns a "Permission denied" error. In this case, you will need to use terminal emulators directly on your smartphone or obtain superuser rights.
Using file managers with Root access
The most convenient way to navigate system directories is to use advanced file managers, such as Root Explorer, Solid Explorer or MT Manager. These applications are able to request superuser rights and mount the partition /system in read and write mode.
After launching such a manager and granting root access, you will see the "Mount R/W" button (Mount as Read/Write). Clicking this button temporarily removes write protection from the system partition. Now you can navigate through the directory tree, find the files you need and edit them.
The main subfolders you will encounter:
- 📁 /system/app — system applications that cannot be deleted in the usual way are stored here.
- 📁 /system/priv-app — folder for critical system services (telephony, settings, launcher).
- 📁 /system/fonts — a directory containing font files used throughout the interface.
- 📁 /system/media — sound files, ringtones and system animations.
It is important to be careful when working with this data. Accidentally deleting a file from priv-app may cause the phone to stop making calls or loading the desktop. Always check the purpose of a file before moving or deleting it.
☑️ Preparing to work with system files
Working with the partition via the ADB Shell console
For those who prefer the command line, the ADB Shell tool provides a powerful interface for managing files. This method is often used when automating processes or when a graphical interface is not available. Commands are entered in the terminal on the computer after connecting the device.
To enter the device shell, use the command adb shell. Once inside, you will see a command prompt. Standard Linux commands are used for navigation. For example, to go to the system folder, enter:
cd /systemNext you can display a list of files with the command ls -l. If you have root access, you can first run the command su to obtain superuser privileges inside the ADB session. Without this, many commands will be blocked.
Copying files from the phone to the computer is carried out with the command adb pull. The syntax is as follows:
adb pull /system/build.prop C:/backup/This command will copy the configuration file build.prop from the Android system folder to the backup folder on the C drive of your computer. The reverse operation (writing to the phone) is performed by the command adb push, but it requires that the partition be mounted in write mode.
⚠️ Attention: The command line interface does not have a "Cancel" button. An error in one letter of the command can lead to the deletion of important data without the possibility of recovery.
Table of main system directories
Understanding the directory structure will help you navigate the file system faster. Below is a table describing the main folders that you will find in the root of the system.
| Folder path | Purpose | Risk level |
|---|---|---|
/system/app |
User and some system applications | Medium |
/system/priv-app |
Critical system services (Google Services, Dialer) | High |
/system/etc |
Configuration files and network settings | High |
/system/lib |
Libraries required for applications to work | Critical |
/system/media |
Audio files, wallpaper, interface sounds | Low |
As can be seen from the table, the risk of system damage varies depending on the selected directory. Folder manipulation media is relatively safe, while changing the contents lib or priv-app requires deep knowledge of the architecture. Android OS.
What is a build.prop file?
It is a text file containing properties systems. It stores information about the device model, Android version, screen density and other parameters. Experienced users edit it to overclock the processor or change the operator logo.
Possible problems and precautions
Searching and modifying the Android system folder is a process fraught with certain risks. Even experienced enthusiasts sometimes make mistakes that lead to unstable operation of the gadget. The most common problem is changing access rights (permissions) to files.
Each file in the system has its own rights: read, write and execute. If you copy a file from one folder to another, but do not set the correct permissions (usually rw-r--r-- or 644), the system will not be able to read it. This will lead to errors in the operation of applications or failures during loading.
In addition, on modern smartphones with data encryption, access to the partition /data and some parts /system can be locked until you enter the screen unlock password. This means that when you connect to your PC immediately after turning it on, you may not see all the files.
The main rule of modding: never delete a file unless you know exactly what it does. It's better to rename it (for example, add a .bak extension) so that the system ignores it, but you can get everything back.
⚠️ Warning: Updating the operating system over the air (OTA) may overwrite all your changes to the system partition. If you have modified the system, it is better to disable auto-updates or be prepared to lose your changes.
Is it possible to find the system folder without root access?
Full access with the ability to write is impossible without root access. However, viewing some files is possible through ADB Shell in read-only mode, unless the device developer has blocked this feature. For deep modification, superuser rights are required.
Is it safe to delete applications from the /system/app folder?
It is risky. Some applications seem unnecessary but depend on other system services. Removing them may cause persistent "Process com.android.systemui has stopped" errors. It is recommended to use freezing applications instead of deleting them.
What to do if the phone does not turn on after the changes?
You need to boot into Recovery mode (usually the Volume Up + Power button). If you have custom recovery (TWRP) installed, you can restore the system from a previously made backup. Otherwise, you will need to flash the device via a computer.
Where is the Android folder on the memory card?
The folder Android on the external memory card (SD card) is different from the system one. It is located along the path /sdcard/Android and contains application data (obb, data) that the user has allowed to be stored on external media. Access to it is open by default.
How to restore access rights to files after copying?
File managers with Root access have the “Change Permissions” function. Check the boxes: Owner (Read, Write), Group (Read), Other (Read). The numerical value should be 644. For executable files (scripts), you need to add Execute (755).