I bought this Syma x5c from a local store(a serious one) and i have this problems.Please help me with an advice. There is the video where i try to show the problems
Well for one it's not a Syma. See if it uses the same calibration sequence as a real X5 If that does work return it.
It is a X5C-1 clone, which is what I own. The on/off switch is at the rear, so the lettering is upside down (red is forward, green is at the back. Set it on a level surface when you turn it on (transmitter off), the lights blink slowly. Turn on the transmitter, and the lights will blink quickly. If not hold both sticks down and right to recalibrate the gyro circuit. Hope this helps.