Bluetooth (iOS 9.1) cannot find bt devices

Hi guys,

I've got some problems with finding my bluetooth devices with my iPhone 6 (iOS 9.1)

I tried any solution I could find on the internet.

I've reset the general settings and also the network settings.
I've switched the iPhone on and off, the bluetooth on and off.
Still, I can't find any of my bluetooth devices.

With my Macbook Pro I can easily find all of my devices.
Also, my MacbookPro finds my iPhone and it can connect with it so the bluetooth function still works.

Is there anyone who thinks he knows the solution for my problem?