I'm having problems in this area as well, my notification will not work. I do not get any notification sounds at all even though everything is on. My call ringtone work fine, nut no notifications, not from email, or my third part oultook email app, and neither from my SMS's. It was all finw in the beginning but now it just stopped working. I got the phone with 33r and stock, have not done anything to the phone yet, and don't want to, but i cant figure this issue out.......any help would be greatly appreciated......
The All Mighty OnePlus-ONE