Don't attempt to fly it again, unplug it if not already done so, check wirings, get a fire extinguisher, watch that video clip of Li batt explosion in the other thread. Were you giving it throttle or does it just heat up even at zero throttle? With everything switched off try turning the main rotor counterclockwise looking from top to check for jammed gear. If you're in Hong Kong you should be able to find help there're like half a dozen LHS's within maybe 1km in Mongkok that carries either or both the Shog and the Rex and can do a detailed check on that.

Li batteries can be very dangerous. If it's a short circuit and therefore overdischarged it may explode the next time you charge it. I always charge them Li batts outside car/house.

Clement