This is so frustrating. I upgraded my 5S to iOS 8, Bluetooth stopped working. I then got my Plus - it worked again! I decided to exchange for a 6 after the Plus exhibited software glitches (it would reboot itself whenever I used the multitask pane). So this morning I pair my 6 with my Mini and..again no Bluetooth. Anyone else have this? Is there a fix? I'm on 8.0.2 so that didn't help.