Hi hope someone can please help,Im on 3 network in UK,I had to return 2 s6 because they were faulty they were both on 5.1.1 updated via ota I'm on third s6 same network this s6 however is on 5.02 and its saying I'm on latest software I have also updated via smartswitch but still on 5.02 can anybody tell me what's up with this?? Many thanks