Sunsky G4 User manual

GPS Speed meter: G4
Warning: This product working voltage is 5V, and it is forbidden to use a voltage higher than 5V for
power supply.
After the satellite is found, the GPS light stops flashing and stays on for normal use.
Display functions:
1. Satellite icon: After the satellite is found, the GPS light stops flashing and stays on for normal use.
2. Vehicle speed display
3. Ambient light: speed changes over 20
4. Compass: N (North) E (East) W (West) S (South)
5. Speed unit: KM/H (kilometers) MPH (miles)

Wave button function
1.Short press in: confirm the option after entering the setting menu
2.long press in: enter the setting, after adjusting, press vertically for 2 seconds to save and exit
3.Push left: move options after entering setting (switch to compact mode)
4.Long push left: push left for 2 seconds to turn off the buzzer alarm, do it again to turn on
5.Push right: move option after entering setting (change ambient light color)
Enter setting mode:
Long press in to enter into the setting mode, press right to choose the menu, and short press in to
confirm. Once finishing the setting, long press in to exit.
Menu
Function
Adjustment
range
Explanation
Default
value
Set parameter value
interface
speed
50-150
Adjust the
parameter value
when there is an
error between HUD
and dashboard.
Ex: dashboard
displays 100 KM/H,
HUD displays 105
KM/H. Please adjust
the parameter value
to 102.(107-5)
107

Troubleshooting
1.The screen without any display, and no power
Check whether the USB cable is damaged, replace the USB cable for testing, and prohibit the use of
voltage higher than 5V for power supply.
Over speed
alarm
30-250
When the vehicle
speed reach to 150,
HUD will give the
alarm
150
Fatigue
driving
alarm
1.0-8.0
HUD will give fatigue
driving alarm each 4
hours
4.0
Brightness
adjustment
0-11
0=automatic
sensitivity
adjustment
1-11=manual
adjustment
1=darkest,
11=brightest
1→11 is increasing
0
Speed unit
0-1
0=KM/H (kilometers)
1=MPH (miles)
0
Factory
reset
0-1
default=0,
→1, long press in for
3 seconds to save
and exit
0

2.Without car Speed
After HUD power-on, the satellite icon flashes will start to find the satellite. Please driving the car to
the road. It will work after it stops flashing.
3.Inaccurate Speed
a.First check the speed unit is correct or not, the speed unit including KM/H and MPH, please refer
to the setting to switch the unit.
b.The car manufacturers usually make the dashboard speed 5-7% higher than the ECU. The
international standard is based on satellite data.
(if the dashboard shows 100, and the device shows the 105, change the default value at 102)
4.Driving direction display error
After the vehicle speed exceeds 5KM / H, the direction can be displayed normally.
5. Speed is still displayed after the car stops
Under the underground parking lot, tunnel, under the overpass, there will be unstable satellite drift
when there is obstruction.
6.Turn off the buzzer
Push left for 2 seconds to turn off the buzzer, do it again to turn on.