I set up the location-based Smart lock when I first got my GS7 two weeks ago, and for at least a week it was working perfectly, keeping my phone unlocked when at home. For the last few days, I've noticed that Smart lock is no longer activating for me. I've tried turning the GPS off and on, disabling and reenabling the address, and turning Smart lock off and on, all to no avail. I can't remember for sure if it stopped working before this happened or only after, but last Thursday while out of town for a few days I downloaded a security update (T-Mobile) to my phone. I'm thinking this might be the cause. Has anyone else had this problem?