If you cant hover with the lipo then there has to be a problem. Most likely is the pitch of the blades is to low. Try increasing the pitch and see if it will lift off. If you have the correct pitch and it still doesnt lift off then your motor might be shot. You can easily pick up a motor at a lhs or online for 10-15 bucks. If the motor is still good and it still doesnt lift off then the lipo is no good. If you bought it from overseas the quality goes way down and theyve been know to lie about the specs of there lipos. Those are really the only things that could keep it from lifting off the ground. Check those 3 areas and see if that helps. I might be missing something but those are the major areas and if its not those then I would need to see the heli to figure out the problem. Hope this helps!