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3. Uneven takeoff/unstable takeoff or flight

(1) Please keep the aircraft on a completely flat and stable surface after connecting it to power. Allow it to sit 
still for at least 10 seconds before taking off (as to allow the gyro sensor to properly initialize). 

(2) Place the aircraft on a completely flat and stable surface. Observe to see if the Roll (R) and Pitch (P) 
telemetry values on the transmitter screen are 0. If they are not, please perform a horizontal/gyro calibration 
for the aircraft.

4. The aircraft drifts badly in GPS Hold mode

(1) Check the surrounding area to see if there are any sources of GPS interference. 

(2) Manually calibrate the compass. 

5. The transmitter beeps

Check the transmitter’s power levels; please pause the flight to change and charge batteries. 

6. When connected to power, the aircraft beeps incessantly

The flight control firmware needs to be reflashed appropriately. 

7. There is no FPV

(1) Verify that the camera is powered on, the camera battery is sufficiently charged and that the camera is 
properly connected to the aircraft. 

(2) Rebind the aircraft to its transmitter. 

8. The gimbal does not move or react

Make sure that the gimbal line is properly connected to the aircraft, especially after a crash. Always check the 
state of the aircraft and its components after any kind of crash.

9. How to retrieve the aircraft when unit has been lost:

Record or take a picture of the aircraft’s GPS coordinates on the LCD screen.  Then locate the aircraft using 
the coordinates.

Summary of Contents for X4 Pro FPV

Page 1: ...Real time video transmission THE HUBSAN X4 PRO 14 H109S Medium Edition User Manual Version 1 0 Read the User Manual and its instructions carefully before use...

Page 2: ...ubsan dedicated charger for charging Keep the battery out of the reach of children and away from any kind of moisture Flight Please be mindful of personal safety and the safety of others while flying...

Page 3: ...etting to know the H906A 5 3 H906A key functions Table of Contents 0 1 0 1 0 1 0 3 0 4 0 5 0 5 0 6 0 7 0 8 0 8 1 1 1 3 1 3 1 4 1 4 1 5 1 5 1 5 1 6 1 7 5 4 Battery installation 5 5 Transmitter stick ca...

Page 4: ...The aircraft battery 6 AC power adapter 1 A 110 240v adapter 9 Transmitter sunshield Reduces glare from the H906A video screen 1 The Hubsan X4 Pro is a four rotor quadcopter made for aerial photograp...

Page 5: ...craft features Aircraft flight modes Bidirectional data transmission FPV Video transmission Return to Home mode The 3 axis gimbal The camera The smartphone gimbal Propeller guards Altitude Hold mode G...

Page 6: ...failure and damage 1 The Aircraft Battery Before using the Hubsan X4 Pro please verify that the battery is sufficiently charged Device Power supply Transmitter 8 AA Batteries or a LiPo 2 or 3 cell 3...

Page 7: ...drone on the remote control screen 1 3 Charging the Battery 1 Connect the balance charger to the AC power adapter 100 240V 50 60Hz if necessary use a power conversion plug The balance charger LEDs wil...

Page 8: ...t the battery to force of any kind 7 Do not throw or manhandle the battery 8 Never charge a battery that has been damaged become deformed or swelled 9 Do not solder on or near the battery 10 Do not ov...

Page 9: ...80P HD camera and an advanced flight control system The aircraft is equipped with data and video transmission capabilities for user friendly flight 1 Propeller 2 Motor 3 LED 4 Gimbal shock absorbers 5...

Page 10: ...t the Micro SD to FAT32 before use Verify that the allocation unit size is set to 32 kilobytes or the camera will be unable to register the Micro SD Note The H906A transmitter is also used for photogr...

Page 11: ...pidly Micro SD is full Low power battery 3 1 Connects to the gimbal and camera interface on the belly of the aircraft please see section 2 3 1 for more details The X4 Pro is compatible with the GoPro...

Page 12: ...e 2 Plug the gimbal s signal transmission line to the gimbal and camera interface as shown in the figure below 3 Plug the camera s FPV transmission cable to the left of the gimbal s signal transmissio...

Page 13: ...ase calibrate it with the steps listed below Calibration steps 1 After completing gimbal and camera installation disconnect the gimbal s transmission line from the gimbal Connect the aircraft to its b...

Page 14: ...ors Turn each propeller in the indicated lock direction Propellers should be firmly but not overly secured to their motor shafts The X4 aircraft uses 9 inch propellers Each is marked with either an A...

Page 15: ...propellers to ensure optimum flight performance 3 4 Installing the Propeller Guards It is recommended that beginners use the Hubsan X4 Pro propeller guards for flight safety while flying Spare guards...

Page 16: ...e A i r c r a f t i n L e v e l C a l i b r a t e C o m p a s s 1 7 3V 2 Remove the antenna from its wrappings and locate the gold SMA connector at the side of the unit Attach the antenna to the conn...

Page 17: ...G Antenna 15 Follow Me Mode switch 19 Neck strap hook 6 Elevator trim 2 Elevator and Aileron 4 Aileron trim 8 Enter 17 Down 11 T2 Mode 1 Japanese Hand 9 Power switch 6 Elevator trim 2 Elevator and Rud...

Page 18: ...ckwise and clockwise rotation yaw drift Use the Aileron trim to adjust for left and right horizontal drift Throttle trim is normally centered If the throttle channel is not centered use the Throttle t...

Page 19: ...se both sticks and hold the Exit key until the transmitter beeps This indicates a successful calibration Mode 2 Push both sticks to the upper left corners Power the transmitter on while holding both s...

Page 20: ...e a good quality live video If desired or needed users may manually search the 5 725 5 945GHz frequencies for a better video transmission signal To adjust the 5 8GHz frequency first pull and hold the...

Page 21: ...ere magnetic interference Pre Flight checklist 1 Make sure the aircraft battery and mobile device are charged and have adequate power 2 Confirm that propellers are properly installed 3 Check that the...

Page 22: ...will then read Calib compass 2 and the LEDs should be green flashing alternately in vertical pairs Point the head of the aircraft downwards and rotate the aircraft in place When the Calib compass 2 d...

Page 23: ...d that users wait for 15 20 seconds after the calibration is completed before flying again When using the horizontal calibration please ensure that the aircraft is on a completely flat surface Do not...

Page 24: ...y this manual will introduce flight operations in Mode 2 Remote Control Mode 2 Aircraft Transmitter controls Ascend Descend Clockwise rotation Counterclockwise rotation Head The throttle is used to co...

Page 25: ...ft s tilt and therefore the velocity of its left and right movement The harder the aileron is pushed the greater the aircraft s tilt angle and flight speed either leftwards or rightwards The T1 knob i...

Page 26: ...ou enter Headless mode you can turn any side of the aircraft due north and still fly forward Flip the A switch up to enter Headless mode flip the A switch down to exit Headless mode The Head teleme tr...

Page 27: ...Return to Home mode Exiting Return to Home mode Flip the B switch up to enter Follow Me mode flip the B switch down to exit Follow Me mode When the switch is up the screen will say Follow Mode in gre...

Page 28: ...vent this the aircraft flight control will use flight information to determine whether to perform a Return to Home or to land immediately 10 2 Loss of flight control failsafe 10 3 Conditions that may...

Page 29: ...d the Exit key until the transmitter beeps This indicates a successful calibration Mode 2 Push both sticks to the upper left corners Power the transmitter on while holding both sticks in their respect...

Page 30: ...e compass 5 The transmitter beeps Check the transmitter s power levels please pause the flight to change and charge batteries 6 When connected to power the aircraft beeps incessantly The flight contro...

Page 31: ...Content subject to change without notice Users may download the User Manual from the official HUBSAN website WWW HUBSAN COM...

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