How to reset a bluetooth connection to a headset from iPhone

Probably one of the most annoying things in my life is forgetting simple sequences.

The following is one of my favorites and I decided to spare my (and hopefully somebody else’s) couple of minutes online research.

Symptoms:

Despite the fact that Plantronics Pro is not only supported from but also marketed by Apple:

http://store.apple.com/de/product/TW455ZM/B#compatibility

There are still numerous user feedbacks, complaining occasional loss of connection, degraded voice quality, volume drops and the like:

http://soundingboard.plantronics.com/t5/Voyager-PRO/iPhone-4-poor-sound-quality-with-Voyager-Pro/td-p/6099/page/11

http://discussions.apple.com/thread.jspa?threadID=2481487&start=555&tstart=0

Solution:

1. Disconnect the device:
   1. Go to Settings / General / Bluetooth

1. You need your BT device turned on and the status showing "connected"

1. Press the arrow on the right side of the listed device and then press Forget the device; confirm

1. Turn off the BT headset, turn off Bluetooth on iPhone and return to main menu

1. Cold restart / hard reset the iPhone
   1. Press and hold the Home and Power Button until your iPhone reboots (ignore the "Slide to turn off"), wait until the Apple logo appears, then release the buttons.

1. Wait until finished; enter PIN, Code, etc.

1. Re-pair headset
   1. On the iPhone go to Settings / General / Bluetooth and turn Bluetooth on
   2. Wait one minute (works always for me, some recommend 2 minutes)
   3. Turn on Headset in pairing mode
   4. Wait until connected

1. If you are not sure how to activate pairing mode on the device consult the manual. For Voyager Pro / Pro+ & Backbeat 903 / 903+ the reference is:
   1. Start with your headset powered off
   2. Press and hold the power button for 5 or 6 seconds until the light starts flashing an alternating red-blue

1. Release the button and set the headset aside
2. Follow the pairing instructions for your cell phone or other Bluetooth device
3. If prompted for a passkey, enter 0000 (four zeros). Note: Do not be alarmed if your phone does not prompt you for a passkey, because many phones do not (my comment: iPhone does not J)

Enjoy!