I can only hear others and others can hear me when I make a call only via the speaker. Turn speaker off and everything goes silent from both sides. My Infuse is out of warranty and I still have 10 months to go on my contract. Need help! Have already done a reset which did delete all my data and settings, still same behavior. It seemed to briefly work ok after a full charge (which works only via USB), then back to speaker only mode soon after.