It's an Orange phone, had it about 1 week now, mind you it's getting loads of dust behind the screen and I cant get rid of them....
MY SOFTWARE VERSION IS 3.16 15-08-02 NHL-2NA
I don't think that dust behind the screen has anything to do with the software version. 😉
But seriously, this dust problem is very annoying - my phone has it too - and I haven't come with up any other solution but to take the phone for maintenance (again).
Tero