If it works, Android Smart Lock feature is incredible. You do not need to enter your PIN if your phone knows it's in your hands – just unlock it and get started. But Smart Lock, especially the function "Trusted Places", can sometimes be tricky.
Most features of Smart Lock are rock solid. Trusted Face, Trusted Device, On-Body Detection and Voice Match almost never work, but the most practical Smart Lock feature has the most problems. Trusted Places should leave your phone unlocked when you are home, but many users complain that this is not the case.
Escalate the following steps to solve the problem ̵
Step 1: Make sure your GPS is turned on
The first step is the simplest: Make sure you have GPS enabled. Other location reporting methods are not as accurate as your phone's actual GPS sensor, and the Trusted Place has a radius of only about 50 meters, so your phone's location needs to be pretty accurate for trusted locations to work.
You can enable GPS by going to the main settings menu of your phone. From there, the exact location depends on the device. Use the box at the top of the Settings page to search for Location. From the Location menu, choose Location Method or Location Method, then High Accuracy to make sure GPS is enabled.
There is a possibility that your phone may not have updated location status for some time. If this is the case, Smart Lock no longer works because trusted places need a fairly up-to-date location report before the phone unlocks.
To lock your location, open Google Maps and tap the compass icon at the bottom-right corner. When the screen zooms in on your current location (the blue dot in Google Maps), your phone will receive an updated location report.
If you have more than one Android device, or if you've recently changed phones, location data from the other device may affect your trusted locations.
To fix this, go to Settings -> Google, then scroll down and select "Location." Select "Google Location History" (you may need to tap "Advanced" before viewing this option) and make sure only your current device is enabled.
Step 4: Disconnect More Google Accounts on the Device  As described in Step 3 above, trusted places can no longer function if the feature is serving data from another Google Account in addition to or instead of your primary account detected.
Smart Lock does not allow you to select an account If you're signed in to the same phone with multiple Google Accounts, location data may be retrieved from the wrong account. G Suite accounts or "Google Apps" accounts are also tricky – many of which will ban the Smart Lock features altogether, depending on your account administrator's settings.
The only way is to remove all additional Google accounts from your phone account. Go to Settings -> Accounts and select any non-primary Google Account. On the next screen, tap "Remove account" and confirm your selection at the prompt. Repeat this step for all other non-primary Google Accounts.
The backbone of all Smart Lock features is a system app called Google Play Services. This app needs to be able to see the location of your device for trusted places to work.
To verify that Play Services can access your device's settings, go to Settings -> Apps and then select "All apps". Menu below. Scroll down and select "Google Play Services", then tap "Permissions" and make sure the "Location" option is turned on.
The way Play Services unlocks the device when the Smart Lock feature is turned on is given a special permission called "Change System Settings." Make sure that Play Services has this permission. In the Settings app, find "Change System Settings" and select the top result, then select Google Play Services from the list and make sure the toggle feature is enabled on the following screen.
The next troubleshooting step will not work for most people users, but if you've used a mod like to take back the battery consumption of Play Services, trusted places may fail because their backbone (Google Play Services) is in Doze mode.
To verify this, go to Settings and search for "Battery Optimization" and tap the top result. From there, scroll through the list and search for Google Play services. When they are listed in the main menu, you're done. If it does not, tap the drop-down menu at the top of the screen and select "All apps." Then search for "Play Services" and set it to "Not Optimized".
Step 8: Delete and re-add a trusted location  Go to Settings -> Security -> Smart Lock -> Trusted Places Then tap the address you are having problems with. Select "Edit" from the menu and tap the trash can icon in the upper right corner of the next screen to remove that address. Confirm your selection in the command prompt.
When you're done, restart the phone. When you get up, go back to the Trusted Places menu and tap "Home" and re-enter the address.
Most of us have let Google automatically identify our house and work addresses using Google Maps location data. If your trusted location is labeled as "home" or "work," the address comes from there, and there's a possibility that Google has only poor metadata for that particular address in its mapping system. To work around the problem, go to Settings -> Security -> Smart Lock -> Trusted Places, then tap your default address and select "Disable this location."
Then tap Add Trusted Location and pan and zoom around the provided map until the location indicator is over a point that is very close to the address where Smart Lock should intervene. As long as your destination address is within the blue dotted circle, trusted places will still work when you're there. Touch "Choose this location" and then "Select" to make it a trusted location. If you do this manually, co-ordinates that are more reliable than just a road are added to your trusted location.
The final troubleshooting step is the core option. First go to Settings -> Security -> Smart Lock, then go through all menu items and disable all Smart Lock functions. Make sure your trusted places are also disabled.
Next, go to Settings -> Apps. Select "All apps" from the drop-down menu, scroll through, and search for Google Play services. Tap on it and select "Memory". On the next screen, tap "Clear Memory" (or "Clear Data") and confirm your selection at the prompt. As soon as you can, restart your phone. When you get up, re-enable the Smart Lock features and they should finally work.
If none of these troubleshooting tips work for you, let me know in the comment section below. I want this guide to be as complete as possible, so I will do my best to help with any other possible troubleshooting steps.