UBSAN ZINO PRO+ User Manual page 27

4.7 Intelligent Protection Function
4.7.1 Low Power Failsafe
When the aircraft battery is low, there is likely insufficient power to support the return of
the aircraft. Please land the aircraft immediately, otherwise the aircraft will fall and
cause damage to the aircraft and surrounding objects. To prevent this, the aircraft flight
control will use flight information to determine whether to perform a Return to Home or
to land immediately.
4.7.2 Loss of Flight Control Failsafe
When the flight control connection between the aircraft and transmitter is lost, the
aircraft will automatically land or return to where the remote control / transmitter was
last located and land there. This can drastically reduce the possibility of the aircraft
crashing or being lost.
Conditions that may trigger a failsafe:
1) Transmitter is powered off / loses power.
2) The flight distance exceeds the remote control's signal transmission range.
3) There is an obstacle between the remote control and aircraft.
4) The flight control or transmitter signal is interrupted by strong external electronic
interference.
To ensure the successful return of the aircraft if it loses flight control connection,
users must confirm that the aircraft has enough GPS satellites to fly safely in GPS
mode. Users must also be certain that the flight environment is clear enough for an
emergency return and landing. If the aircraft's GPS satellites drop below 6 for more
than 20 seconds while the X4 is returning to Home Point, the aircraft will
automatically descend.
5 FAQ
1. Aircraft and remote control are not pairing
Check if the status of the APP control signal icon changes.
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Android phone requires USB settings, please check the "Connecting Tutorial for
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Android Phones"
2. Aircraft can't be searched
Restart the aircraft, remote control and x-hubsan 2 APP.
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Update aircraft firmware.
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Check if the position of the TF card s lot in the fuselage is steady red. If it flashes that
•
is abnormal.
3. Figure transmission or easy to lose control of the broken connection
Adjust the antenna Angle on the aircraft, do not block in the middle.
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Change the flight site, please do not fly in tall buildings, or near signal tower.
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Update the latest firmware of the aircraft.
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