Of course, after three days of trying to get a charge by letting the transmitter sit in the unit for hours, seeing it go from blinking red to a constant black, unplugging and doing the same again several times, reinstalling firmware, leaving everything unplugged over night, plugging in and doing everything over again, and finally opening a ticket and bitching about it here, it now decided to work and now is fully charged. :) Haven't used it yet to see how long the charge holds, though.