Owners of Xiaomi smartphones often face a situation where the usual Android functions are hidden in the bowels of the MIUI or HyperOS interface. This is especially true for security systems such as Smart Lock, which allows you to automatically unlock the device in trusted places or when connecting to certain devices. The search for this option can turn into a real quest, since the logic of the Xiaomi menu is significantly different from stock Android, and in recent versions of Google firmware began to actively implement its services on top of system settings.
The challenge is that Xiaomi and Google use different security ecosystems, where pure Android settings are in the Security section, MIUI shell can be moved to Passwords and Security or hidden inside Google account settings, and understanding this hierarchy is key to quickly accessing the right features.
In this article, we will discuss in detail where to look for Google Smart Lock on different versions of firmware, how to properly configure trusted devices and places, and what to do if the menu item is lost or becomes unavailable. You will learn about the hidden nuances of biometrics and intelligent unlocking that will help make using a smartphone more convenient.
Standard search path in security settings
The traditional and most reliable way to find a smart lock feature is to go deep through the system security settings. In most current versions of MIUI 12, 13, 14 and the new HyperOS, the logic of the menu layout remains similar, although the names of items may vary slightly depending on the regional firmware (Global, EU, China).
To start, you need to open the main smartphone settings menu, find a section called Passwords and Security, and that's where all the key data protection options, including fingerprint management, facial recognition, and lock screen passwords, are concentrated.
Inside this section, you should scroll down to Privacy or search for Screen Lock. In some builds, the tool we want is hidden inside the Trusted Agents menu. If you see the list of security agents, make sure the switch opposite Smart Lock is activated. Once activated, the screen lock menu should show the appropriate item to configure trusted locations and devices.
It is important to understand that without a password, PIN-The system requires a basic unlock method to provide a basic level of protection in the event that the smart unlock conditions are not met.
β οΈ Note: If you reset the main screen password, all stored trusted places and devices in Smart Lock will be removed for security purposes.
Alternative Search through Google Services
In recent updates to Android and Google Play services, Google has introduced more direct access to security features, bypassing the complex menus of smartphone manufacturers. On Xiaomi, this method is often more effective, especially if the standard path in MIUI settings does not give results or a menu item is missing.
To take advantage of this method, open your smartphone settings and enter the word "Smart" in the search bar at the top. The system should suggest a Smart Lock or Smart Lock Lock with the Google logo. Clicking on this item will immediately redirect you to the desired menu, regardless of where it is physically located in the firmware structure.
Another way to get to settings is through your Google account. Go to Settings β Google β Managing your Google account. In the interface that opens, select the Security tab. Scroll down to the Log in or Checkout section, where you can link to managing devices and unlock methods associated with your account.
- π Use a global search for phone settings by entering queries βsmartβ, βlockβ or βsmart".
- π± Check the Google app on your phone, sometimes the settings are duplicated in the Device Settings section".
- π A link to direct control is often available along the Settings path β Google β Set up Android.
This method is particularly useful when the MIUI interface has undergone strong localization or customization, and standard navigation paths have been changed by shell designers.
Configure trusted devices and places
Once you have found the right partition, the configuration process begins. Smart Lock offers several scenarios that make life much easier for the user, the most popular being Trusted Devices and Trusted Places.
The Trusted Devices feature allows the smartphone to remain unlocked while it is connected to a specific gadget via Bluetooth.This is ideal for use with a smartwatch, Mi Band fitness bracelets or car radio. Once communication with the device is broken (you stepped away from the car or took off your watch), the phone automatically locks.
To set up, click Trusted Devices β Add Device. You'll see available Bluetooth gadgets. Choose the right one and confirm pairing. Now that the gadget is active and within range, the phone screen can be unlocked with a simple swipe, without entering a password.
Trusted Places uses geolocation (GPS) to determine your location. You don't have to worry about unlocking constantly when you're at home or in the office, but it's worth remembering that using GPS can slightly increase battery consumption, even though current algorithms are optimized for background work.
βοΈ Checklist of Smart Lock setup
There is also an option called On-body detection, which keeps the phone unlocked while you hold it in your hands. On Xiaomi, this feature may not work properly due to aggressive energy savings, so you shouldnβt rely on it as your primary method.
Problems with the disappearance of the function on MIUI and HyperOS
Many Xiaomi users complain that the Smart Lock item simply disappears after the firmware update, a common problem with changes in Googleβs security policy and device certification features, and new versions of Android 12, 13, 14 have made biometric requirements stricter.
The main reason for the function's disappearance is because it doesn't have strong biometrics, if your phone only recognizes your face through a camera (2D), not through an infrared sensor, or 3D-Google may consider this method not safe enough for the Smart Lock to work, in such cases, the system blocks the possibility of using smart unlocking, since the face can be fooled by a photo.
In addition, there are some bugs on global firmware when Google Play services are not automatically updated or are not working properly. Check the Play Market store if updates are available for the Google Play Services and Google Settings app.
β οΈ Note: Some Redmi models and POCO stripped-down MIUI Smart Lock function can be software removed or hidden by the manufacturer to reduce the cost of the device.
If the feature is missing after the update, try clearing the cache of the Settings, Security, and Google Play apps, which often returns missing menu items to their place.
Why does Smart Lock not work with apps?
Compatibility and availability of functions
The availability of specific Smart Lock features depends not only on the Android version, but also on the processor model and the presence of certain sensors in the Xiaomi smartphone. Below is a table showing the dependence of functions on the type of unlock.
| Type of unlock | Trusted devices | Trusted seats | Activity detection | Stability of work |
|---|---|---|---|---|
| Fingerprint. | β It's working. | β It's working. | β It's working. | Tall. |
| Face ID (3D/Infra-red) | β It's working. | β It's working. | β It's working. | Tall. |
| Face ID (Camera 2D) | β οΈ Maybe it won't work. | β οΈ Maybe it won't work. | β It's not working. | Low. |
| Pin code / pattern lock | β It's working. | β It's working. | β It's working. | Medium |
As can be seen from the table, the presence of a fingerprint scanner or infrared facial sensor significantly increases the chances of stable operation of all functions of Smart Lock. Owners of budget models with 2D-unlocking on the face should rely primarily on working with trusted Bluetooth devices.
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For maximum compatibility, use a fingerprint as the primary method of unlocking, rather than a pattern lock. The system considers biometrics to be a more reliable factor for authorization.
The Impact of Energy Saving on Smart Lock
One of the hidden reasons why smart locking stops working on Xiaomi is the aggressive MIUI Optimization energy saving system, which can βkillβ background processes responsible for scanning Bluetooth or GPS, considering them to be consuming batteries.
To fix this, add the services you need to your exclusion list. Go to Settings β Battery and Performance β Application Management. Go to the Google Play Services list and make sure that they have a background permission without restrictions.
It's also worth checking the permissions for the Settings app itself. Sometimes the system is denied access to geolocation in the background, making it impossible for the Trusted Places function to work. Allow location access at all times, not just when you're using it.
- π Turn off Super-Energy Saving when using Smart Unlocking.
- π‘ Make sure Bluetooth doesnβt turn off automatically to save charge.
- π Check whether the ban on background geolocation for system services is worth it.
After making these changes, it is recommended to restart the smartphone so that the new settings take effect and the processes start correctly.