HUD Specifications: working voltage DC8-18V Working current 40mA sleeping current 15mA Compass precision ±1° Speed range 0-400KM Satellite positioning time Cold start: 30s, hot start: 1s HUD size 90x54x12mm 12V car charger 1000mA HUD weight 40g Solution for Common Problems HUD screen without any display,and no power Check the car charger cable if it is tight, pull down repeatedly inserted multiple times, check the HUD switch if it powers on. If there still no display please try another car to test and analyze whether the car cigarette lighter interface is bad, if it is a bad cigarette lighter, please try to connect the cable line to the car battery. Inaccurate Speed a.Please check the speed unit first, to see it is KM or MPH b.When HUD is power on,vertical press the wave button 5 seconds to enter into the menu options, here menu options shows 0,parameter shows 107,up or down the wave button to increase or decrease the value according to the difference until it shows correct one.After adjustment, vertical press in 5 seconds to save it. HUD see not clearly under the sunlight. a.Check whether the HUD host protective film is torn,and please stick the reflection film on the windscreen. b.Check whether stick the reflection film c.You can set the brightness by setting menu, refer to menu 3 d.Change the display mode,refer to menu 6, and adjust the default value to 1, then you can see directly from the sit up HUD screen. wrong operation lead to crashes. Or inaccurate datas Do a reset setting: Long pull up the wave button,and when all the LED light up, it means HUD finish the restore factory setting.
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