Although I'm in Canada and on the Telus Network it's the same phone as T-Mobile and since Bluetooth is the issue I thought this would be the right place. My previous phone was an LG something or rather (not too important as it worked) and my wife had a Blackberry 8830. Both phones worked with our in-car bluetooth (Mazda 5). Ever since we got our Samsung phones Bluetooth has been flaky and unreliable. I got them both paired to the Mazda and mine paired to my computer so pairing is not the issue. When connected in the car it will stay paired for 30 - 60 seconds then it will just drop the pairing. Sometimes it won't even pair and will require a reboot. This morning I tried to just turn the bluetooth on to pair with my PC and it wouldn't even turn on until I rebooted. Considering most places now have laws against cell phone use and driving I don't think rebooting my phone on the highway to get bluetooth is an option. Any help is greatly appreciated and I would've called Telus but 1. the support dept is closed today and 2. I don't think they will be able to help other than telling me to reboot.