3. IMPORTANT: Do NOT upgrade 3-axis Gimbal firmware to 1.0.0.6. If you did upgrade firmware 1.0.0.6, I’m afraid you are out of luck and forget about the following steps. I’m unaware of any simple way to downgrade to previous version. Firmware 1.0.0.6 changes gimbal tilting from “absolute” mode to “relative” mode for the new transmitter with spring centered left dial. It’s pretty difficult to center channel-7 lever without spring in old transmitter.