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Stopped responding to RC inputs and drifted away

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Hello Everyone,

I’m experiencing a strange issue with my 13-inch FPV quadcopter and could use some help troubleshooting. Here’s what happened:

  • Copter specs:
    • Propellers: 13 inch
    • Motors: 4215 350 KV
    • Firmware: 4.5.7
    • Airframe: Quadcopter
    • Battery: 6S 8000mAh

I armed the copter using the arming switch and raised the throttle to gain height of around 1.5m. After that, I stopped giving any RC input, but the copter slowly started gaining height and drifting towards the right. I tried giving it opposite roll input, but the copter did not respond to any RC commands.

There were no error prompts or messages in the logs, and everything appeared normal in terms of the flight controller’s performance. To prevent the copter from flying away, I triggered the emergency motor stop.

I’ve flown this system many times with no issues, and this was the first time I encountered such a problem. Given the flight logs and the lack of error messages, I’m at a bit of a loss as to what might have caused this issue.

I’ve attached the Flight Logs. Any insights or suggestions would be greatly appreciated!

Thanks in advance for your help!

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