Significant changes were introduced with Android 6.0 that limited what cell and Wi-Fi info would be accessible without Location access. I believe the theory behind it was that you could use that information to deduce your location. I held off implementing those APIs in SignalCheck as long as possible because I knew it would create headaches, but they have been in place since version 4.43 of the app, which was released in June 2017. Perhaps Samsung didn't fully implement those changes in it's flavor of the OS until the new update you just applied. -Mike