Most if not all os since 517 have low and unaccerable BT volume compared to earlier OS's. Well documented but never seen a satisfactory fix.
Printable View
I'm no hybrid Guru, but maybe one them can provided some insight on your question. Are you having bluetooth volume issues? I have a 3 bluetooth devices that I use frequently and I haven't notice a problem with volume. Can you provided a description of your problem?
When I use my bluetooth headset with 607 everyone says I sound staticy and scratchy. I tried going back to 451 and that solved the problem, but with 607 my signal strength is better and I don't drop calls. So I am living with it on 607.