@userhuYt6DQkMH wrote: OK, I've got this problem for months and it seems I have found out my way to solve it after trying all the suggestions above and more. Maybe it will help you as well. It seems that the location-based smart lock works only when only one (current) of your Google-logged-on-phones is allowing the location services and history. I have a second phone (no Samsung) which I use only as a backup now, but I forgot about it as I shut it down. Now: 1. Take your current main device: go to Settings -> Google -> Localisation -> Google Localisation History and tick only your current, main device, disable the others, both old phones and the old locks of your current device. 2. Take your old phone, go down the same path but disable that old device. Part 1 of this tutorial I have found somewhere on the web and it did not work. Then I figured that the old device might still have itself locked on the function, so I did what I described in part 2 and yay! Works! After months of frustration! Of course there is no guarantee it is not going to trouble me again tomorrow, we'll see. Hope this works at least for some of you :) Cheers from Kraków Tomek Darda HOLY, THIS WORKED FOR ME!! I had an old Android phone (non-Samsung) that I used my Google account with. It's been turned off in my house for over a week since I got my S9 and Smart Lock would not work AT ALL on my S9 until I did step 1 of your solution, didn't even have to do Step 2 since it's turned off.
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