Worked fine previously. Now unit does not stay on. When switched on, power light gives one long flash, gps light gives 3 short flashes, then nothing. No lights, camera doesn't see unit in hot shoe and computer doesn't see unit on USB.
I don't think the flashes are an error code. I seem to recall that it has always flashed like that at power up. The battery light should flash slowly and the gps light should flash every 3 seconds when it has a lock. There is no reference in the manu...
