Modern Xiaomi, Redmi and Poco smartphones contain a huge amount of personal information that owners often want to protect from prying eyes. Whether it is confidential documents, personal photos or just files that are limited, the need for a reliable way to hide them arises regularly. The standard shell MIUI and its modern version of HyperOS offer several powerful tools to solve this problem without installing third-party software.
In this article, we will take a look at all the available methods for hiding folders, from built-in gallery functions to creating completely isolated spaces. You will learn how to make sure that your files do not appear in shared lists and are only accessible through a special password or fingerprint. We will look at the nuances of the Android file system on devices from a Chinese manufacturer.
Before we get to the tricky settings, it's worth noting that data security depends on the complexity of the password you've invented. Using simple combinations like "1234" or date of birth negates any effort to hide. The MIUI encryption system binds access to hidden files to your Mi Account and your privacy password, so you need to approach the security setting stage responsibly.
Use of the built-in Hidden Album in the Gallery
The easiest and most popular way to hide photos and videos is to use the Hidden Album feature, which is built directly into the standard Gallery app and does not require additional installation steps, so you need to open the app and go to the Albums section to activate this mode.
If you're on the album list, you swipe down the screen, and if you're on, you'll open the password interface, and if you see the activation prompt, you'll be prompted to create a privacy password, and that password will be universal for all hidden elements in the system, including hidden applications.
Once you have set your password and Mi Account binding (which is crucial for restoring access when you change your device), you can move any media files there. Just select the photos you want, click "More" and select "Add to Hidden Album".
⚠️ Note: If you do not link your Mi-account when creating a privacy password, then if you reset your phone settings or break it, access to the hidden photo will be completely lost without the possibility of recovery.
It's important to understand that the files in the hidden album are not just hidden, they're encrypted, and even if you plug your phone into your computer in drive mode, you won't find these images in the standard folder structure. They're stored in a secure partition of memory.
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For quick access to the hidden album, you can add a widget to your desktop or use a search system by entering the title of the hidden album, if known.
Configure the Second Space (Second Space)
A more radical and robust method of protecting data is to create a Second Space, which actually creates a second, completely isolated user profile inside your smartphone, and to the system it looks like two different phones in the same case.
To activate this feature, go to Settings → Second Space (or Settings → Special Options → Second Space in the new HyperOS versions). By clicking “Enable Second Space”, the system will ask you to set up a fingerprint or password to log in to this profile.
When you switch, you'll see a clean desktop, like a new device, where you can install individual applications, create folders of documents, and take photos.
- 🔒 Completely isolated from the main profile.
- 📸 Not displayed in the general gallery of the main space.
- 📂 They have their own file structure.
- 🔋 Battery costs regardless of the background processes of the first profile.
Switching between spaces is instantaneous through a notification panel or a special fingerprint assigned to enter the Second Space, which is ideal if you need to hide not only the files, but also the applications themselves, such as bank clients or instant messengers.
Can I transfer files between spaces?
Hiding folders through Explorer and renaming
If you don’t want to hide media files, but documents, archives, or APK installation packages, the best way to do this is to use the built-in File Manager. Xiaomi’s standard file manager has a folder hiding feature that is based on a simple but effective naming rule.
In Android, folders and files that start with a point (.) are considered system and hidden. They don't show up in regular galleries and simple file viewers. To take advantage of this, open Explorer, find the folder you want, click More → Rename, and add a dot at the beginning of the name.
For example, the Documents folder will become.Documents. Once renaming, it will disappear from the general list. To see it again, you need to turn on the hidden files display in the Explorer settings (usually this is the "Show hidden files" item in the application settings menu).
However, this method does not provide encryption. Anyone who knows that there is a point at the beginning of the name or allows the display of hidden files will have access to the content, so this method is suitable for protection against accidental browsing, but not from targeted hacking.
☑️ Folder security checklist
Comparison of data protection methods
The right method depends on what you want to hide and what level of security you need. Below is a table comparing the main characteristics of the methods considered.
| Method | Type of hidden files | Level of protection | Impact on the battery |
|---|---|---|---|
| Hidden album | Photos, Videos | High (encryption) | Minimum |
| Second space | All File Types, Applications | Maximum (insulation) | Medium (background processes) |
| Rename (.) | Documents, Folders. | Low (hiding only) | Absent. |
| Application protection | Access to specific Apps | Medium (password to the entrance) | Minimum |
As you can see from the table, the built-in album is best for storing personal photos, whereas the Second Space is indispensable for the complete separation of working or secret information from the main life.
⚠️ Note: When using the dot renaming method, be careful when clearing memory through third-party optimizers. Some aggressive cleaners may count files with a dot at the beginning of the garbage and suggest that they be deleted.
Password protection of applications
The app protection feature is not directly hiding folders, but it blocks access to applications through which those folders can be opened (e.g., Explorer or Gallery), and you can find this setting by Settings → Applications → Applications → Application Protection.
So you can pick any programs you've installed and lock them, and now when you try to open the app you've chosen, you'll need to type in a password, a pattern lock, or a fingerprint, and that creates an additional barrier for the curious.
This feature is especially useful in conjunction with the method of hiding folders through a dot. Even if someone guesses to enable the display of hidden files in Explorer, they will not be able to run the Explorer application itself without your permission.
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Combining the method of hiding folders (through a dot) and blocking the application itself, Explorer creates an effective two-tier barrier to protect files without using complex system settings.
Restoration of access and frequent problems
Users often experience a situation where they forget the password from a hidden album or Second Space. If you have a Mi Account, it takes a couple of minutes to recover, just type in the wrong password several times, and the system will suggest resetting it through the confirmation code sent to the linked number or email.
If the account was not tied, unfortunately, the data will be lost forever. Xiaomi's security system is built so that even service center employees can't restore access to encrypted data without a password, which is the price that comes with high levels of privacy.
Also, when you transfer data to a new phone via Mi Mover, hidden albums and Second Space, you will not automatically transfer it unlocked, you will need to unlock it on your old device first or know the passwords to activate it on the new one.