Since I got my iPhone 6S Plus, i do not get any notification sounds or vibrations when the phone is locked (i get them whilst i am using the phone). So far I have noticed this with messages, whatsapp, email and calendar notifications. Calls and alarm work as normal. (FYI, i am using iOS 9.0.2 and it is still not fixed) I have tried/checked the following: - Tried the phone in both silent and normal mode (no vibration or sound in either mode) - Do not disturb is off - Tried changing tones in both whatsapp and messages - Reset network settings (which is such a pain in the a**!!) - Reset phone to factory settings - Restore iPhone via iTunes After restoring from iTunes the notifications worked OK for about a hour and then the problem resumed. I have seen this problem mentioned on apple forums and it seems a lot of people are having the issue but no-one seems to be talking about it here or on the popular Apple blogs! Luckily I have an Watch so I get notified on there of messages, otherwise I would get no notifications at all!! Has anyone else here had this problem / managed to fix it??? Please help, this is really frustrating!