!● During the return home flight, the aircraft will fly straight to return home point and cannot
avoid obstacles. Please make sure there are no any obstacles on the path.
● Aircraft can not return to the Home Point when the GPS signal is weak or unavailable.
● Aircraft will stop ascending and immediately return to the Home Point if user moves the
throttle stick in the aircraft reaches 15 meters altitudes or beyond during Smart RTH.
● If there is no GPS signal and the remote controller signal lost for more than 6 seconds,
the aircraft can not Return-to-Home but descend slowly until land to the ground and lock
the aircraft.
Aircraft status indicator
When the GPS signal is available (more than 7 satellites is presented), use the RTH button on the
remote controller (Pic. 1) or tap the RTH button in the “M RC PRO” APP (Pic. 2) and then follow the
on-screen instructions to initiate Smart RTH. During the smart RTH, you can use the remote controller
to guide the aircraft around obstacles. You can press the RTH button again to exit RTH procedure and
regain control of the aircraft.
Low battery RTH
The low battery level failsafe is triggered when the intelligent battery is depleted to a point that may
affect the safe return of the aircraft. Users are advised to return home or land the aircraft immediately
when prompted.
1. If the rear indicator light flash slow, the battery icon in transmitter LCD screen is “ ”, with transmitter
has “DIDI” sound. As only the aircraft is beyond 30 meters altitude or 100 meters distance, the aircraft
will return home automatically. As long as the aircraft is in 100 meters distance, the user can cancel
the return via “ ” button.
2. When the aircraft rear lights flash slowly, battery icon “ ” is shown on the remote controller or on
the “M RC PRO” APP. And steady “beep...beep...beep” sound is heard. At this moment, the aircraft
will automatically return to the Home Point if the flying altitude is beyond 15 meters or the flying
distance against the home point is beyond 15 meters. If the aircraft flying altitude is less than 15
meters or the flying distance is less than 15 meters, the aircraft will automatically land to the ground.
Pic. 1 Pic. 2
Bugs 12EIS User Manual
Home Point
GPS Description
If a strong GPS signal (satellites over 7) was acquired before takeoff,
the Home Point is the location from which the aircraft launched. The
GPS signal strength is indicated by the GPS icon( ). The aircraft
rear indicator lights will blink rapidly from yellow color to green color
when the home point is recorded.
The Return-to-Home (RTH) function brings the aircraft back to the last recorded Home Point.
There are 3 types of RTH: smart RTH, low battery RTH and failsafe RTH. This section describes these
3 scenarios in detail.
Return to Home (RTH)
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