Owners of modern smartphones Xiaomi, Redmi and POCO often use the function of “Second space” to separate work and personal data or to create a hidden environment with access to a separate password. However, the need to change the access code occurs regularly, whether it is a standard procedure for updating security measures or trying to remember a forgotten pin code after a long downtime. The process of changing the password in the shell of MIUI or HyperOS has its own nuances, which depend on the current version of the system and the status of access to the device.
If you just want to update the code to improve security, it takes only a couple of minutes through the standard settings menu. In case access to the second space is lost, the algorithm of actions changes dramatically and requires the use of a primary profile or a complete data reset. It is important to understand that the second space is not just a folder, but a full-fledged isolated environment with its applications and files, so login protection is critical.
In this article, we will look at all possible scenarios, from a planned password change to emergency access restoration, and look at biometric sensors, Mi Account anchoring features, and specific commands that may be needed in rare cases. Follow the instructions carefully to ensure that you do not block access to sensitive data.
Planned password change through the main space settings
The easiest and most secure way to change the access code is to do this operation from the main profile, which does not require any special knowledge or connection to the computer, but only to have access to the main space and know the current password from the second one, if the system requires it to be confirmed before making changes.
The process starts with going to the second space management menu. Depending on the version of the MIUI shell, the path may vary slightly, but the logic remains the same. Open Settings, then find the Features (or Additional Features) section and select Second Space, and here you will see the space-to-space switch and the control button.
Once you log in to the control menu, click on the gear icon or the "Settings for Second Space" button, and the system will prompt you to install a new unlock method. You can choose a graphical key, a digital key. PIN-It is recommended to use a mixed password containing letters and numbers to maximize the protection of confidential information.
☑️ Checking before changing password
Importantly, when you change your password through your main space settings, the changes take effect instantly. The old code stops working, and you will now need to use a new combination to enter the second space. If you have fingerprint or face unlock set up on your device, the biometrics may also require re-assignment for a new security profile.
Using biometrics to access the second space
Xiaomi’s modern smartphones are equipped with advanced security modules that allow you to use biometrics not only to unlock the screen, but also to enter hidden parts of the system, which is much more convenient than entering a long password every time, especially if you use the second space several times a day.
To configure this functionality, you need to go to the second space menu and select Unlock, where the system will suggest adding a fingerprint specifically for this profile. The uniqueness of the implementation in MIUI is that the same finger can unlock different spaces depending on which fingerprint you use, if you have multiple fingers configured.
⚠️ Note: Biometric data is stored in a secure module TEE (However, if you reset the settings of the second space or forget the main password, biometrics will not help restore access without encoding.
Often, users are faced with a situation where the scanner will no longer recognize the finger to enter the second space after the system update, in which case you need to remove the old fingerprint from the settings of the second space and add it again, make sure that the finger is pressed tightly during the scan and occupies the same position as the original setting.
If you decide to opt out of biometrics, the system will automatically return to the password request, which can also happen after the device is rebooted: the first entry into the second space after the smartphone is turned on always requires the input of a digital code or pattern lock for security purposes.
What to do if you forget the password from the second space
The situation when the user forgets the password from the second space is one of the most common. Fortunately, the security architecture of Xiaomi provides a recovery mechanism, but it requires the presence of a Mi Account attached. Without an account, it is almost impossible to restore access to data inside the second space due to encryption.
If you have a few failed attempts to enter a password, the second space lock screen will show the words "Forgot your password?" and click on it, the system will prompt you to enter the password from your main Mi Account, which confirms that the device is owned by the owner of the main profile.
Why can't you just reset your password?
Once you have successfully logged in to Mi Account, you will be asked to set a new password, however, in some versions of MIUI, the security policy is tougher: the system may require you to delete the second space completely to create it again with a new password, which means that all applications and files that were inside will be irretrievably lost.
If you don't have internet access or Mi Account is not tied, the only option is a full Hard Reset, which will delete all data from the device, so it's crucial to remember the password from the main account and keep sync enabled.
Comparison of protection methods and their reliability
The choice of security for the second space directly affects the balance between convenience and security, the different types of passwords and biometrics have their own vulnerabilities and advantages, and understanding these differences will help you choose the best option for your needs.
The pattern lock is convenient for quick input, but it is easy to peek from the side or restore it in the traces of fat on the screen. PIN-The code is more secure, especially if it's long, but it's harder to remember. A complex password with letters and numbers provides maximum protection, but takes time to type.
| Protection method | Level of security | Convenience | Risks. |
|---|---|---|---|
| pattern lock | Medium. | High. | Screenprints, peeking. |
| PIN-code (4-6 figure) | Medium/High | High. | Ease of selection (1234, 0000) |
| A complex password | Maximum | Low. | It's hard to remember, it's long to enter. |
| Fingerprint. | High-pitched | Maximum. | Does not work with wet hands, requires alternatives |
The best way to use a combination method is to use biometrics for daily use and a complex password that is stored in memory or written in a secure location for rare login times. Do not use date of birth or simple sequences of numbers, as they are easy to match with brute-force or social engineering.
Technical nuances and hidden functions of MIUI
The MIUI shell contains many hidden features that can be useful when managing a second space, such as the ability to quickly switch between spaces through a notification in the curtain, which can be protected with an additional password so that outsiders can not accidentally or intentionally navigate to your hidden profile.
For advanced users using USB and ADB debugging (Android Debug Bridge), there are commands to manage profiles, but standard Android tools access to the second space through ADB is limited by Xiaomi's security policies. Attempts to interfere with the system files of the second space without root rights can lead to unstable system operation.
⚠️ Note: Installing third-party launchers or modifying system files in a second space can result in a “bootloop” (cyclic reboot) of this particular profile, while the main space will remain operational.
Also worth mentioning is the Guest Mode feature, which is often confused with the second space: Guest Mode does not require a separate password to log in and is completely cleared after exit, whereas the second space saves data permanently.
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Keep your important files backed up from the second space to the Mi Cloud or your computer regularly, and this is the only way to ensure that your data is safe in case of system failures.
Frequently Asked Questions (FAQ)
Can I recover data from the second space without a password?
Does the second space affect the battery?
What will happen to the applications in the second space when you reset your password?
Can I transfer applications from the main space to the second?
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The security of the second space depends on the complexity of the password and the relevance of the MIUI version. Regularly update the system for the latest security patches.
In conclusion, second-space password management on Xiaomi devices is an important skill for privacy. Regular code change, using biometrics, and understanding recovery mechanisms will help you maintain control over your data in any situation. Don't neglect setting up your Mi Account, as it is your main key to recovering access in critical cases.