How to find the internal storage on Android: hidden folders, system partitions and alternative methods

The internal storage of Android is not just a folder Download or DCIM with photos. Behind the facade of the user interface lies a complex structure of sections, some of which are inaccessible without special tools. Many people face a problem: the phone shows that the memory is full, but there are not enough files in the standard file explorer - where did the gigabytes go? Others are looking for system files for backup or firmware modification. In this article, we will look at all access methods the internal storage, including hidden technical methods.

Let's start with the basics: what is generally considered an “internal storage” on Android? This is not only user data, but also system partitions (/data, /system), application cache, as well as virtual volumes created by the OS itself. Manufacturers like Samsung, Xiaomi or Google Pixel organize the file system differently, so there is no universal way. For example, on Samsung Galaxy with a shell One UI you will see a folder My Files, and on "pure" Android - standard Files by Google. But even they display only a small part of the real storage.

1. Standard Explorer: what you can see "out of the box"

The most obvious way is to open a pre-installed application for working with files. On most smartphones it is called "Files", "My Files" (u Samsung) or "File Manager" (u Xiaomi, Realme). These applications only show user part of the internal memorywhich is usually mounted as /storage/emulated/0.

What you will find here:

• 📁 Multimedia folders: DCIM (photo/video), Pictures, Music, Movies.
• 📄 Downloads: folder Download with files from the browser or instant messengers.
• 📱 Application data: some apps (for example, Telegram or WhatsApp) create their directories here.
• 🔄 Cache and temporary files: folders like Android/data (game and application data are stored here).

Standard limitations Explorer:

• ❌ No access to system partitions (/system, /vendor).
• ❌ Does not show hidden folders (starting with a dot, for example .thumbnails).
• ❌ Does not display the actual memory allocation (for example, why "32 GB occupied" and only 10 GB in folders).

⚠️ Attention: On some firmware (for example, MIUI from Xiaomi), the built-in file manager can hide system folders even when debugging mode is enabled. In this case, use third-party applications.

2. managers: extended access

If the built-in explorer is not enough, install an alternative file manager with support root access or advanced functions. The best options:

• 🛠️ Solid Explorer - supports FTP, cloud storage and shows hidden files.
• 🔍 FX File Explorer —can work with ADB and system partitions (if root is present).
• 📂 Root Explorer —a specialized manager for users with root access.
• 🔗 Mixplorer —free and powerful, with support for archives and network protocols.

How to enable the display of hidden files (on example Solid Explorer):

1. Open the menu (three dots in the upper right corner).
2. Select "Settings" → "Display".
3. Activate the option "Show hidden files".
4. To access system folders you may need root or ADB.

Install a file manager with root support|Enable the display of hidden folders|Grant superuser rights (if root)|Create a backup copy of important data-->

What you can see additionally:

⚠️ Attention: Deleting or changing files in /data/data or /system without root access can cause applications or the entire system to crash. Even with root edit only those files that you are sure of.

3. ADB (Android Debug Bridge): access via computer

If the file manager does not show the necessary folders, and you do not have root access, you can use ADB a debugging tool from Google, which allows you to control the phone through the command line of your computer. This method does not require root, but gives access to some hidden directories.

What you will need:

• 🖥️ A computer with Windows, macOS or Linux.
• 🔌 Cable USB-Type C (or another, depending on the phone model).
• 🛠️ Installed drivers ADB and Fastboot (you can download from the website Google for developers).
• 📱 Enabled USB debugging on the phone (c Settings → About phone → Build number press 7 times, then return to Settings → System → For developers).

Basic commands for working with internal memory:

adb shell ls /storage/emulated/0 # View custom files
adb shell ls /data # View the system partition (requires root)
adb pull /storage/emulated/0/DCIM ~/Photos # Copy the DCIM folder to the computer
adb shell df -h # View used space on all partitions

Example command output adb shell df -h:

Filesystem      Size  Used Avail Use% Mounted on
/dev/block/mmcblk0p53
118G   32G   86G  27% /data
/dev/block/mmcblk0p54
5.8G  2.1G  3.7G  36% /system

This command will show real memory allocationincluding system partitions that are not visible in Explorer. For example, you may find that 10 GB is occupied in /data, although there is only 2 GB in the user folders - this is the application cache and system files.

4. System settings: used space analysis

Android has a built-in memory analysis tool that shows which applications and files are taking up the most space. This method does not give direct access to files, but helps identify memory "eaters".

How to open storage analysis:

1. Go to Settings → Storage (or Memory, depending on the firmware).
2. Click on "Internal memory" or "Device memory".
3. Wait for the chart to load (may take a few seconds).
4. Click on a category (for example, "Applications" or "Media") for details.

What you can find out:

• 📊 Total memory size and how much is free.
• 📦 Application cache size (often takes up several gigabytes).
• 🎮 Game data (for example, Call of Duty Mobile or PUBG can weigh 2–4 GB).
• 🗑️ "Other files" - this includes temporary data, logs and garbage that is not visible in Explorer.

How to clear space:

• 🧹 Click "Clear cache" in the applications section.
• 🗑️ Delete unnecessary APK files in Download or messenger folders.
• 🔄 Use the function "Free up space" (available in Google Files and some firmware).

⚠️ Attention: On some devices (for example, Huawei or Honor) the storage menu may display incorrect size of occupied memory due to the peculiarities of the file system EROFS. In this case, trust data from ADB or specialized applications like DiskUsage.

5. Root access: full control over partitions

If you need full access to all partitions of the internal memory, including /data, /system and /vendor, you will need to obtain root access. This is a risky procedure, since:

• ⚠️ Void the warranty.
• ⚠️ May lead to "briku" (inoperability) of the device.
• ⚠️ Violates security (applications gain access to system files).

How to get root (briefly):

1. Unlock bootloader (instructions differ for Samsung, Xiaomi, Google Pixel etc.).
2. Install custom recovery (TWRP or OrangeFox).
3. Flash Magisk (a popular tool for managing root access).

What you can do with root:

• 🔧 Edit system files (for example, /system/build.prop to change OS settings).
• 🗃️ View and clear folders /data/data (game saves, application settings).
• 🔄 Mount partitions in read/write mode for modifications.
• 🛡️ Delete pre-installed applications (bloatware).

Example command for viewing content /data from root:

su
ls -la /data/data/com.android.chrome/ # View Chrome browser data

⚠️ Attention: On devices with Android 10+ and a file system F2FS or EROFS some operations (for example, changing files in /system) can lead to soft-brick (the phone turns on, but does not boot further logo).Always make a backup copy via TWRP before editing.

6. Alternative methods: TWRP, Terminal Emulator and DiskUsage

If the standard methods do not help, try these tools:

1. TWRP (Team Win Recovery Project)

Custom recovery, which allows you to:

• 🔄 Create backup copies (nandroid backup) of all partitions.
• 📁 View and edit files even without a running OS.
• 🔧 Mount partitions manually (for example, /data or /system).

2. Terminal Emulator (for Android)

An application that emulates the command line directly on the phone. Useful commands:

su # Obtaining root access (if any)
df -h # View used space
du -sh /data/data/* | sort -rh | head -n 10 # Top 10 folders that take up the most space

3. DiskUsage

The application visualizes the used space in the form of an interactive map. find "invisible" files that take up gigabytes. You can download in Google Play or F-Droid.

4. ADB over Wi-Fi

If the USB cable is not available, you can connect via the network:

adb tcpip 5555 # Translation ADB to network mode
adb connect 192.168.1.100 # Connecting to an IP phone

7. Common problems and solutions

Problem 1: There is not enough space in Explorer, but the files are not visible.

Solution: Use ADB or DiskUsageto find Hidden files are often to blame:

• 🗑️ Cache Google Play Services (can weigh 1-3 GB).
• 🎮 Game data in /Android/obb.
• 📁 System logs /data/log.

Problem 2: You cannot delete the folder - it says "No rights."

Solution:

• Try via ADB: adb shell rm -rf /storage/emulated/0/folder.
• If the folder is system, you need it root.

Problem 3: After updating Android, files disappeared.

Solution: Check:

• 🔄 Folder /storage/emulated/0/Download - sometimes files are moved there.
• 🗃️ Recycle Bin in the file manager (if available).
• 🔍 Use DiskDigger to recover deleted files.

Problem 4: The phone shows that the memory is full, but in total the files take up less.

Solution: It could be:

• 📊 Reserved space (for example, for OTA updates).
• 🔒 Encrypted data (on Android 10+ part of the memory is reserved for encryption).
• 🗑️ Garbage after deleting applications (cleared through ADB or reboot).

⚠️ Attention: On some devices (for example, Samsung Galaxy s One UI) part of the internal memory is reserved for function "Secure folder" (Secure Folder). This data is not displayed in the standard explorer and is not taken into account in the storage analysis. To see it, open Secure Folder through the security menu.

FAQ: Frequently asked questions about Android internal memory

adb shell pm set-install-location 2 # Forced installation on SD