*PARROT ZIK 2.0 HEADSET* I'm having problems with external bluetooth applications IPHONE 6S

I have owned a Parrot Zik 2.0 headset for the past year, and it is connected to my iPhone through bluetooth, and the headset is controlled by an application for iPhone made by Parrot. This has always worked like a charm on my Iphone 5, but i upgraded yesterday to an iPhone 6s instead. I then tried to connect my headset, and it worked flawlessly with bluetooth, but when i open my external bluetooth app to control the headset, it says "No device found". It's working on my Iphone 5, and they are both running 9.3.1 - I have tried Deleting the whole iPhone and running it as a new phone, and i have tried resetting all the settings. I have reinstalled the app a million times. Any help on this subject would be appreciated a lot, since it annoys me that an expensive headset like that, won't connect to such an expensive phone. Have a nice day!