Modern smartphones Xiaomi have become real repositories of personal information, where not only work documents are stored, but also intimate photographs, financial reports or private correspondence. Device owners are often looking for a way to password-protect a folder on Android Xiaomi in order to protect this data from the prying eyes of friends, colleagues or children who might pick up the phone. Fortunately, the shell MIUI offers powerful built-in security tools that do not require the installation of third-party applications, which often contain advertising or questionable permissions.
The process of blocking access to specific directories in the file system may vary depending on the operating system version and regional firmware. In some cases, the standard file manager does not allow you to set a password for an arbitrary folder directly, but the developers have provided alternative methods, such as Hidden Album or Secure Folder. These functions create an encrypted space inside the device's memory, which can only be accessed after entering a special pattern, PIN code or fingerprint.
In this article we will analyze in detail all the available ways to protect your data, from using native functions to creating encrypted ones archives. You'll learn how to set up biometric unlocking to speed up access and what actions to take if you forget your set password. Understanding these mechanisms will allow you to feel confident when handing over the phone to another person to make a call or show a photo from an open gallery.
Using the “Hidden Album” function to protect photos and videos
The most popular user request concerns the protection of media content, and for this purpose in the shell MIUI there is a special “Hidden Album” function. This tool not only hides files from the shared gallery, but also encrypts them, placing them in a secure memory section. To activate this feature, you need to open the standard Gallery application and go to the Albums section. When you scroll down to the very end, you will see the option to add a hidden album.
The first time you click, the system will ask you to set a privacy password. This could be a digital code, a pattern, or even a fingerprint if it's already configured in your phone's main security settings. After successful setup, your photos and videos can be moved to this album by clicking on them and selecting the appropriate option in the menu. It is important to understand that files in a hidden album do not appear in device search and are not visible when you connect your phone to a computer in file transfer mode.
To access hidden materials, simply scroll down the list of albums again and drag your finger down until the lock icon appears. The system will ask for the previously entered password or fingerprint. If you use multiple accounts Mi Account, make sure that hidden album synchronization is configured correctly so as not to lose data when changing devices. This method is the most convenient for those who need to quickly hide specific pictures from strangers.
- 🔒 Full encryption of files makes them inaccessible even when connected to a PC.
- 👆 Quick access via the "swipe down" gesture in the album list.
- 👁️ Files are not displayed in notification previews or widgets.
Before moving important files to a hidden album, make sure that you have enough free space on your internal storage, as the encryption process may require a temporary buffer.
Setting up a “Secure Folder” for documents and applications
If your goal is to protect not only photos, but also documents, archives or even entire applications, you will need the “Safe Folder” function (Second Space or Protected Folder in different firmware versions). This tool creates an isolated environment that acts as a separate space inside your smartphone. Files placed here are completely invisible to the main system space and other users.
The function is activated through the menu Settings → Passwords and security → Protected items. Here you can select the type of content to protect: images, videos, notes or files. The system will prompt you to create a separate password, which may be different from the main screen unlock password, which adds an additional level of security. After setup, a special section will appear in the file manager that requires authentication to log in.
A feature of the “Secure Folder” is the ability to set an automatic locking time. You can configure the system to close the folder immediately after the screen turns off or after a certain period of inactivity. This is critically important if you left the unlocked phone on the table: no one can accidentally enter the protected section without re-verifying your identity.
⚠️ Attention: When you reset your phone to factory settings (Hard Reset), all data located inside the “Secure Folder” or “Hidden Album” will be permanently deleted. Be sure to back up important files before such procedures.
Blocking access through privacy settings
In addition to special folders, the shell MIUI allows you to restrict access to certain applications through which you can view files. For example, you can block access to standard Explorer or third-party file managers. This is an effective way to prevent accidental viewing of the contents of memory, even if the folder itself is not separately password-protected.
To configure, go to section Settings → Applications → Application blocking. This menu will prompt you to enter your privacy password if you have not already done so. Then, in the list of installed apps, find the required file manager or gallery and activate the switch next to them. Now, every time you try to open this application, the system will ask for a password, fingerprint or Face ID.
This method has its own nuances: it blocks the launch of the entire application, and not a specific folder inside it. However, if you use several file managers, blocking the main one will create a serious barrier to unauthorized access. You can also set up hiding notifications from blocked applications so that the contents of messages or file names are not displayed on the lock screen.
- 📱 Ability to block any installed application, not just system ones.
- 🕵️ Hiding the contents of notifications from blocked apps.
- ⏱️ Flexible timeout settings for re-requesting a password.
Application blocking is an effective method of the second layer of protection, which complements the encryption of specific folders and complicates access to data for inexperienced users.
Creating encrypted archives as an alternative method
In situations where the built-in functions are not suitable for some reason or you want to transfer protected data to another medium, the optimal solution would be to create an encrypted archive. A standard file manager Xiaomi often has a built-in function for creating ZIP archives with password support, or you can use proven third-party utilities from Google Play.
The process is as follows: you select the desired files or folder in Explorer, select the “Compress” or “Add to Archive” option. In the compression settings, be sure to check the “Set password” checkbox and enter a complex combination of characters. The resulting file .zip will take up less space and will require entering a key to unpack and view the contents. The original files can be deleted.
The advantage of this method is its versatility: such an archive can be opened on any device (PC, laptop, other smartphone) if you know the password. This is an ideal option for storing backup copies of sensitive information in cloud storage, since even if the account is compromised, attackers will not be able to read the contents of the encrypted container.
Recommended password structure for the archive:- Minimum 12 characters
- Uppercase and lowercase letters
- Numbers and special characters (!@#$%)
⚠️ Attention: The interface of file managers may differ depending on the version of MIUI (Global, China, EEA). If you do not find the option to create a password when archiving, use an application ZArchiverthat guarantees this option.
Using biometrics to quickly access protected data
Constantly entering passwords or patterns can be tiresome, especially if you often access hidden files. Modern smartphones Xiaomi allow you to link access to protected folders to biometric data: a fingerprint scanner or a facial recognition system. This not only speeds up the process, but also increases security, since the biometric data is unique.
Settings are carried out in the same section Passwords and security. After setting the main privacy password, the system will prompt you to add a fingerprint to unlock hidden items. You will need to place your finger on the scanner (which can be built into the power button or located under the screen) several times for the system to remember the papillary line pattern.
It is worth noting that biometrics work as a convenient key, but the password remains the main means of restoring access. If the scanner does not work (wet hands, sensor damage) or after rebooting the device, the system will still require you to enter a digital or pattern lock. Therefore, never forget the main password, even if you only use a fingerprint.
☑️ Setting up biometric protection
Comparison table of data protection methods on Xiaomi
So that you can choose the most suitable protection method, we have systematized the main methods in a comparative table. Each of them has its own advantages and limitations, depending on your specific needs and device model.
| Protection method | Data type | Encryption level | Access from PC |
|---|---|---|---|
| Hidden album | Photo, Video | High | No (account login required) |
| Secure folder | Any files | High | No (isolated space) |
| Blocking applications | Access to apps | Medium (login protection) | No (blocks launch) |
| Encrypted archive | Any files | High (AES) | Yes (with a password) |
As can be seen from the table, for complete isolation of data from the outside world, they are best suited "Secure Folder" and "Hidden Album". If you need portability and the ability to open files on your computer, then an encrypted archive will be the only right solution. Combining these methods allows you to create a multi-level system for protecting your personal information.
What to do if you have forgotten the password for a hidden folder?
If you have forgotten your password, you can reset it through the linked Mi Account. To do this, you need to click “Forgot your password” on the input screen and follow the recovery instructions via email or SMS. Without linking an account, data recovery is impossible.
Restoring access and solving common problems
Even with the most careful setup, situations may arise when access to protected data is blocked. The most common problem is a forgotten password or a malfunction of the biometric sensor. The shell MIUI provides a recovery mechanism that is directly linked to your account Mi Account.
If you cannot remember the code, on the password entry screen, click on the “Forgot your password” link. The system will prompt you to enter data from your Mi account (login and password), which was linked during the initial setup of the protection function. After successful authorization, you will be allowed to set a new access code. This emphasizes the importance of having an active and verified account on the device.
In some cases, users are faced with the fact that hidden files disappear after updating the firmware. This usually happens due to changing paths to system directories. In such a situation, try updating the Gallery or Explorer application through the GetApps store. If the problem is not solved, contact the official support service, as tampering with system files without proper qualifications can lead to complete loss of data.
⚠️ Attention: Security functions and their location in the menu may be changed by developers in new versions of MIUI and HyperOS. If you do not find the described items, use the search in the settings by entering the query “Privacy” or “Protection”.
Is it possible to password-protect a separate folder in a standard Explorer without creating an archive?
In its pure form, the function of setting a password for an arbitrary folder in the root directory is not available in most versions of MIUI. However, you can move the files you need to the system's "Secure Folder" or "Hidden Album" feature, which emulate. For arbitrary folders without moving files, the only solution is to create an encrypted archive.
What will happen to the files in the hidden album when you delete the Gallery application?
Deleting updates or the Gallery application itself will not lead to the loss of files, since they are stored in a protected system partition, and not in the application cache. However, accessing them through the standard interface may be temporarily difficult until you reinstall or update the system component. The files will remain encrypted on the drive.
Are password-protected files visible when the phone is connected to a computer via USB?
No, files placed in the “Hidden Album” or “Secure Folder” are not displayed when connected to a PC in file transfer mode (MTP). They are hidden at the file system level for external devices. You can only see them inside the phone after successful authentication or (in the case of archives) when entering the password for the archive on the computer.
Can you use a fingerprint to enter a hidden folder?
Yes, modern versions of MIUI allow you to link biometric data to the privacy protection function. You can set up fingerprint or facial recognition login for quick access to hidden albums and locked apps without having to enter your password every time.
How to transfer hidden files to a new Xiaomi phone?
When using Mi Cloud and hidden album synchronization is enabled, files may automatically appear on the new device after logging into the same account. To transfer locally, you must first remove files from a hidden album (decrypt them), transfer them in the usual way, and then hide them again in a secure folder on the new device.