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On means IR lights are always on, so the video color is black and white. 
Auto means the dash cam will decide to turn on/off infrared lights with 
different light condition. Off means the IR lights are all turned off. 
You can also short press [        ] button to enable / disable the IR LED.

① 

Auto Event Detection 

Including buffered parking mode, the camera will automatically record a 
video sequence (from 15 seconds before the event to 30 seconds after 
the event) while a moving object is detected during parking. It will stop 
recording without new movements. 

② 

Time Lapse recording 

Time lapse record a video at low frames at 1 / 2 / 3 / 5 / 10 / 15 fps, It keeps 
recording continuously without audio recorded. 

③ 

Low Bitrate Recording 

This mode record video in low bitrate for both front, rear and interior. 
It keeps recording continuously in mini file size with audio recorded.

Note: 

We recommend to buy VIOFO HK3-C ACC hardwire kit cable for 

parking 
mode recording. The parking recording files name of front camera is 
Year_Date_Time_**PF, Year_Date_Time_**PI for interior camera and 
Year_Date_Time_**PR for rear camera.

• Parking Mode: 

There are 3 options under parking mode:

• Enter Parking Mode Timer:

Set the timer for entering parking mode. 

Only for hardwire cable, if you 

use external battery, this function won’t work.

"OFF" means the camera will enter parking mode right away when the 
engine is off.
"90s" means the camera will enter parking mode 90 seconds after engine 
is off.

• Parking Recording Duration:

"On" means the camera will keep recording until the hardwire kits cut the 
power supply.
"1 hour" means the camera will shut down after it gets into parking mode 
for 1 hour.

• Time Synchronization: 

Time synchronization with mobile phone.

• Parking G-sensor:

Adjusts the sensitivity of the motion detection so minor motion caused by 
wind or rain doesn't trigger a recording.

The G-sensor detects significant or sudden movement (such as an impact 
or collision), it will trigger an event recording. We suggest setting it to High 
sensitivity in parking mode recording.

• Parking Motion Detection:

• Image Rotation: 

   Off, Front Only, Interior Only, Rear Only, Both.

• Date Format: 

You can choose the date format of the camera

• Boot delay: 

The camera will boot seconds later when powered on. The 

settings are off / 5s / 10s.

• IR LED: 

Off / On / Auto 

25

26

   

• Voice Notification:

    

Turn on / off the voice notification. You can change the language setting 

 through voice notification laguage option.

Summary of Contents for A139

Page 1: ...Dash Camera USER MANUAL Copyright c 2021 VIOFO Ltd all rights reserved V21 9 15 The user manual is available on https support viofo com ...

Page 2: ...le Storage Location 4 Play and Manage Videos Connect to Smartphone APP Layout Overview 5 Review and Control on Smartphone 6 Install Accessories CPL Bluetooth Remote Control External Microphone Screw Mounting Bracket Table of Contents 21 7 Systems Setting Video Setting System Setting Other 8 Firmware Upgrade 9 Notice 10 Customer Service 23 29 29 31 7 14 16 18 Front Camera Type C Cable GPS Module ba...

Page 3: ...OFF 15 GPS Module 16 Reset Hole 17 Microphone 18 Recording Status Indicator 19 Microphone Status Indicator 20 GPS Status Indicator 21 Wi Fi Status Indicator Optional Accessories Product Diagram Front Camera Main Unit Interior Camera Cable 1M Bluetooth Control HK3 C Hardwire Kit External Microphone Interior Camera VIOFO Hardwire Kit for Car Dash Camera INPUT RED POWER BLACK GND YELLOW ACC Input 12 ...

Page 4: ...eceiving No GPS Wi Fi connected Wi Fi on and waiting connecting Wi Fi disabled Solid Red Flashing Red Solid Red Red Off Solid Blue Flashing Blue Blue Off Solid Blue Flashing Blue Blue Off Long press to Power ON OFF Click once to enable disable the IR LED Click once to start stop recording Long press to format the microSD card Long press to turn on off Wi Fi Click once can lock the file being recor...

Page 5: ...e memory card with your fingernail The card will spring out far enough to be removed When using the memory card for the first time it must be formatted as FAT32 other formats are not supported The microSD card is sold separately The microSD card must be High Endurance type have a UHS U1 U3 or above rating and the capacity up to 256GB We recommend you buy the VIOFO brand memory cards which are manu...

Page 6: ...ge the position of the camera by moving the Static stickers 7 Adjust the angle of the lens ONLY up down if necessary Never try to rotate the lens completely Cameras destroyed by too much rotation of the lens are out of warranty 8 Connecting to Power Plug the USB power adapter into your vehicle s 12V 24V female power socket Insert the 4 meters power USB cable s male port into the camera s mount Typ...

Page 7: ...n record the entire rear view 3 Peel the protection film OFF the sticky pad and camera lens 1 Select an installation location 2 Wipe clean the installation surface of the windscreen with a dry cloth Select a location on the windscreen without defrost grid wires and where the camera can record the entire Interior view 3 Peel the protection film off the sticky pad and camera lens 4 Fix the rear came...

Page 8: ...mounting location should not be affected by sun control film window tint There should not be any other electronic equipment close to the camera for optimal performance 1 When you start the engine the camera will turn on and begin recording automatically 2 When you turn off the engine or unplug the charging cable from the power adapter the camera will stop recording and turn off Loop Recording 1 In...

Page 9: ...5 fps it keeps recording continuously without audio recorded Note Audio cannot be recorded in time lapse mode Disable Enable Audio Recording Pressing the button once to turn off on audio recording LED light will be off solid Red Parking Mode View on a TV Long press the Wi Fi button to enable Wi Fi Open VIOFO app and choose Connect your camera to use your phone to control the dashcam You can play a...

Page 10: ... Wi Fi is VIOFO_A139_XXXX Wi Fi default password is 12345678 When the Wi Fi is on Wi Fi Status LED will be flashing blue Step 1 Use the phone to connect A139 Wi Fi When the phone is connected with the dashcam the LED lights on the camera shows solid blue Step 2 Open VIOFO app and choose Connect your camera to use your phone to control the dashcam Step3 Now you can see the live view of both or thre...

Page 11: ...w 1 Interior Camera Live Video 2 Rear Camera Live Video 3 Front Camera Live Video 4 Audio Recording Status 5 Motion Detection Status 6 Switch Camera Video Source 7 Take a Video Snapshot 8 Go to Video File lists 9 Start Stop Recording 10 Go to System Settings 11 Video File Lists 12 Download Video Files 13 Delete Video Files Preview Video 1 19 20 1 2 3 4 6 8 9 10 7 5 2 3 4 5 11 12 13 ...

Page 12: ...aces that can otherwise damage image quality this works in the same way as polarized sunglasses getting more saturated and beautiful video When installing CPL you need to align the White Symbols on camera for installation The remote control with the mount on the back you can choose to stick it on a suitable location on your dashboard power on the camera and then press the video lock button on the ...

Page 13: ...an adjust the EV for the front interior and rear camera separately The default is set at 0 0 Exposure On Off The dynamic range is the ratio of the brightest portion of the image to the darkest portion of the image WDR enables the camera to deliver video with a near perfect exposure in varying lighting situations WDR Wide Dynamic Range The G sensor measures shock forces and locks the video recorded...

Page 14: ...e are 3 options under parking mode Enter Parking Mode Timer Set the timer for entering parking mode Only for hardwire cable if you use external battery this function won t work OFF means the camera will enter parking mode right away when the engine is off 90s means the camera will enter parking mode 90 seconds after engine is off Parking Recording Duration On means the camera will keep recording u...

Page 15: ... the recorded video Camera Model Stamp Imprint the camera model on the recorded video Frequency Set it to minimize flickering and banding in the recorded video Format microSD Card The operation will delete all data on the microSD card Note Once you format the card all information will be deleted and unrecoverable Make sure to back up all files that you needed before formatting Reset Camera Setting...

Page 16: ...n a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment o and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Caution Any changes or modific...

Page 17: ...duct Registration Program Your Opinion Matters Video Sharing If you have any thoughts on how we can do even better connect with us today at sales viofo com Share videos caught on VIOFO camera with us Let s enjoy your new found together Gain a chance to get a mysterious gift at marketing viofo com Thanks for choosing VIOFO From the date of purchase on all products are warranted for 12 months and al...

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