Just ordered a new board for this unstable tail wagging piece of junk, put upgrades on it to help with stable flight, not before the antenna broke off, maps had servo connector fall off also after putting brushless and speed control upgrade. That's 70 plus for new main boar got two hundred in it and flew it for tail motor burnt up crashed and broke flimsy tail boom o I upgraded it too! set for a year and a half. Best design rather have an ugly heli that will hold up more than three flights, fix my Blades and dump them at a loss. No more blade found better performers for half the price and parts much cheaper. Try XK heli, even the packaging is top quality