Samsung Galaxy Note 2 freezes and will not unfreeze or power off until the battery is removes. I have had my original Note2 replaced only to do the same thing. I am beginning to think it is bluetooth related; I have inbuilt bluetooth in 2009 Honda Pilot Touring Model and phone seems to hang either when auto-pairing or auto-unpairing is taking place (mostly when the car is turned off and the phone tries to disconnect bluetooth from the car). I have not had any problems like this with my Galaxy Nexus Phone using the same OS on the phone. Has anyone else experienced the Note2 freezing or locking up?