Syma Forum

I am a new owner of an s109g and a s107g. The 107 has already survived a rather vicious cat attack which required rotor blade work, but I would to tell everyone about a problem that I had with the 109. After several flights I had a moderate crash which caused no physical damage, but I now had no yaw control, it would simply spin right or left depending on throttle setting. It seemed as though the gyro was no longer working. I disassembled the heli and took a close look at the circuit board. I found a cold and cracked solder joint at what I assume is the gyro chip. A little touch up with a low wattage iron and it flies like new. I don't know if anyone else has had a similar issue, it seems like most problems are due to physical damage. Hope this helps someone.