Charging The Li-Po Battery - Hubsan X4 User Manual

H107 TROUBLESHOOTING
1.Transmitter and X4 do not pair.
Throttle stick needs to be in the full down position. Make sure you do not move the transmitter
sticks or trim during initial power-on.
2. Transmitter LED suddenly goes out.
Replace the AAA batteries in the transmitter.
3. Trasmitter display is not showing the setting interface after holding down the throttle for 2
seconds.
The throttle stick needs to be in the full down position.
4. Gyro is not working well.
(1) Battery voltage is too low.
(2) Pair the X4 with the transmitter again.
(3) Land the X4 with the throttle stick in the full down position for 3 seconds and then take off again.
5. X4 won't perform flips.
sensitivity in the Setup Menu. See 7.3 on P13-14.
(3) Press the throttle stick to turn on flip function.
(4) LiPo power is too low. Recharge the X4.
Check that the motors, canopy, body and propellers are all properly positioned.
7. Switching between low and high rates on the transmitter is difficult.
bottom center on the display.
8. Cannot take off.
(1) Make sure the propellers are installed correctly. The propellers are marked with "A" (clockwise)
(2) Make sure that each motor is installed correctly. There are two different motors with different
White A
White B
Black A
Black B
20
H107
THE HUBSAN X4
Blue Black
Red White
White Red
Blue
Black

4 CHARGING THE LI-PO BATTERY

4.1 3.7V 240mAh LiPo Battery
4.1.1 Take out the battery from the bottom of the X4.
4.1.2 Connect the battery with USB charger, then connect the USB charger to a computer or other
USB connector, such as a smartphone
charger. The LED lights up while charging
and turns off when charging is complete.
4.2 Safety Advisory Notice
Always partially charge your LiPo battery before storage. LiPo batteries retain the power over a
reasonable period; It is not normally necessary to recharge stored LiPo batteries unless stored for
If your LiPo battery has been over-discharged, it will not be possible to recharge it again.
Lithium-Polymer(LiPo) batteries must not be placed in with household trash. Please contact
your environmental or waste agency or the supplier of your model for local regulations and
the location of your nearest LiPo battery recycling center.
www.hubsan.com
Recycling
05
H107
THE HUBSAN X4