I have a TREO 650 from Sprint with a Sony Ericsson HBH660 bluetooth headset.

I updated to 1.08 ROM and now when I'm on a call and another call comes in, the person on the line hears a "humming noise". This noise continues until I disconnect them from the headset. I can then connect them back to the headset with no issues.

I cannot hear the noise, only the person I am talking to. This only started happening after the update.

I've searched the forums and have not been able to find any posts on this. I called Sprint and was able to duplicate it with a tech but they had no solution.