I have 2 identical S7 phones purchased at the same time (03/2016) from a Verizon store. One for me and one for my girlfriend. My phone works fine. Her phone has never updated the OS since 6.0.1 nor has it received any security patches. Auto update is switched on. If I attempt to check for new updates, I receive a message stating: "This service is unavailable at this time". Don't ask why it took so long for me to look into this. Doesn't really matter. Any ideas would be greatly appreciated.