RUKO F11GIM2 Quick Manual page 23

Be careful when using emergency.
⑤
is only for emergency stop. You can short press and then hold the
button to stop the drone when it is at the altitude within 5-42 feet.
Once activated, the drone motors will stop working immediately and
fell to the ground.
Gimbal Camera Guidelines
Please take off the gimbal camera cover before flight.
①
Please take off from solid and level surface, don't take off from
②
grass or sand ground.
Do not turn on the aircraft when it is on desk or hollow wooden
③
floor. They will amplify the small vibrations into high-frequency
vibrations, which will cause the gimbal cannot work.
22
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On the grass
On the desk
button on the transmitter
3
On the sand
On the hollow wooden floor