Nex-tech QV3868 User manual

Instruction Manual
QV3868
4K Dashcam
with Touchscreen

1
ABOUT THE PRODUCT:
The 4K Dashcam with Touchscreen is a multi-functional driving recorder with HD
photo taking, video recording, G-sensor, parking guard and other functions. It
supports 4K video recording, fully meeting your driving safety requirements.
IMPORTANT SAFETY INSTRUCTIONS:
1. Please use the special car charger provided by our company. Using unqualified
car charger will do harm to the product or even burn out the product.
2. Please keep the equipment dry.
• Do not let the equipment, battery and car charger come contact with water
and vapour.
• Do not operate the equipment or car charger with wet hands.
This precaution is to avoid short circuit of the equipment, failure caused by
corrosion and electric shock of personnel.
3. Do not make the equipment, battery and charger suffer strong shock or
vibration, so as to avoid the fault of the equipment, battery and charger.
4. Do not place the device, battery and charger in an area where the temperature
is too high or too low, otherwise it may cause fault of the device, battery and
charger. The normal operating temperature of the equipment is -10°C/+60°C
5. Do not use in an environment where dust density is too high, so as to avoid
dust contamination of lens and other components, which will affect the
recording effect.
6. Please do not dismantle the equipment and accessories without authorization,
otherwise the equipment and accessories will not be covered by our warranty.

2
PRODUCT STRUCTURE AND INSTRUCTIONS:
Ref Component Description
1 MINI USB interface,
MicroSD card slot,
reset button
USB interface: Connect to PC for data (MicroSD
card) transfer with an MINI USB cable.
SD card slot: Insert MicroSD Card (Support
128GB Max min class 10).
Reset button: If the device fails to operate
properly, try resetting the device. Press the reset
button by using a fine pen or paperclip.
2 LED When recording, charging indicator light flashes.
3Power When the unit is off, long press [power]button to
start the unit, and the dash camera will start to
work automatically.
When the unit is on, long press [power] button to
turn it off; short press [Power] to enter into the
setting interface.
4 Type-C USB Connect to Type-C cable to charge the battery.
5 Bracket It’s Magnetic suction mount with GPS module
inside.
6 AV IN port Connect to the Reverse Camera (Optional).
7 LCD Screen 3’’ IPS screen.
8 3M sticker Use it to fix the bracket on the windscreen.
9 Speaker
10 Camera Lens

3
PRODUCT OPERATION:
1. Power
When the unit is off, long press [power]button to start the unit, and the
dash camera will start to work automatically. When the unit is on, long
press [power] button to turn it off; short press [Power] to enter into the
setting interface.
2. Recording
Function 1: Turn on/off recording function
Press [recording] icon to start recording, and press [recording] icon again
to stop recording.
Function 2: Take a photo
In video mode, slide your finger from left to right in the blank area of the
screen to take photos.
3. Microphone
Press [microphone] icon to turn on /off the video audio.
4. Lock
In the recording mode, if you want to protect the current video from being
overwritten, activate the emergency lock function by press [lock] icon.
At this time, a yellow scroll bar will appear at the bottom of the screen,
saving current recording as a special video, which will not be overwritten.

4
PRODUCT OPERATION:
5. Playback
Press the [playback] icon to enter into photo album, then select the video
or photo you need to play back or view.
6. Setting
Press [setting] icon to enter into system setting interface. Slide up/down
the screen to select the options you want to set. Details as below.
Setting Description Option
Video resolution Set the video sharpness 4K/1080P
Photo resolution Set the photo sharpness 8M/4M
Screen saver Set automatic LCD screen
power off time
Off/1min/3min
Anti flicker mode Change depending on the
electrical power frequency in
your area (Default setting is
50Hz and you may not have
to change this setting).
50Hz/60Hz
Impact sensitivity
(G-sensor)
This functions helps protect/
lock video files in case of a
sudden movement/collision.
You can change the sensitivity
level of the G-sensor.
Off/low/
middle/high
Parking mode When the car engine and the
unit is turned off, this mode
enables the unit to turn back
ON automatically and create
a locked recording when
G-Sensor picks up vibration.
Unit must have sufficient
battery power remaining in
order to record. The G-Sensor
must also be turned on.
Off/low/
middle/high
Date format Change the date format. YY-MM-DD/
DD-MM-YY/
MM-DD-YY
Audio Use this setting to enable or
disable audio recording
On/off
Volume Set the sound level Mute/low/
middle/high

5
PRODUCT OPERATION:
Setting Description Option
Loop recording Use this option to set the
length of each video clip.
Ifyou choose the option ‘Off’
then the recorder will not
loop record and the files will
not be overwritten on the
micro SD card.
Off/1min/3min
/5min
Date & time Change the date & time by
using the relevant UP and
DOWN keys, and then press
OK/confirm to confirm
setting.
Can be set:
year, month,
day, hour,
minute
License plate setting Edit the car plate stamp. Use
the UP/DOWN keys to select
a number or an alphabet and
press confirm to save the
setting.
Time zone Set the correct time zone for
the GPS to get the correct
time settings for the device.
Language Default language is English English/
Chinese/
French/
Spanish/
German/Italian
Format SD Use this option to format
the SD card. (All files will be
permanently erased.)
Confirm/
Cancel
Flips video image
(mirror)
Default setting is off. Off/on
Reset system Resets the device to factory
settings. Note that restoring
defaults will not erase data on
the SD card
Confirm/
Cancel
Motion detection Enable this setting to allow
the unit to record only when it
detects movement.
Off/low/
middle/high
About Display the device firmware
version.

6
IMPORTANT PRODUCT FUNCTION:
1. Video recording
When the SD card is inserted in and power is on, the dash camera will record
automatically. The red recording indicator will flash on the screen. From
00:00:00, press [Recording] icon to stop recording.
2. Take Photo
In video mode, slide your finger from left to right in the blank area of the
screen to take photos.
3. Playback
Press the [playback] icon to enter into photo album, then select the video or
photo you need to play back or view.
4. G-sensor
G-sensor is built into the camera. In case of a vehicle collision, the recorder
will lock the broken video of the accident and save it as a special image.
Meanwhile, a yellow scroll bar appears at the bottom of the display screen.
The locked image is not covered by the loop. Note: G-sensor supports
sensitivity adjustment, which can be changed in the Settings menu.
5. Loop recording
This dash camera can cycle over the recording without missing a second. The
cycle mode can be set in the recording menu. For example, the setting range is:
off /1 minute /3 minutes /5 minutes.
6. Date & time setting
In standby state, press [Settings] to enter the system Settings menu, and select
the date/time option by scrolling up/down. [Note] In order to effectively
record the date and time of obtaining evidence of driving safety accidents,
please set the correct time before using the product.
7. Connect to PC
Connect the device to the USB interface of the PC through a mini USB cable.
The screen shows three optional modes: USB storage, PC camera and charge.
8. Charge
When the power is connected, the charging indicator icon will be displayed
on the upper right of the screen and the charging icon will flash continuously
during the battery charging when device is working.
9. Screen saver
The LCD display can be automatically power off to make the product work at
very low power consumption; In the “screen saver” of the system menu, three
modes of “Off”, “1 minute” and “3 minutes” are optional. For example, select “3
minutes” to enter the power-saving mode after three minutes of power on and
turn off the display. The default is off.
10. GPS
This device has built-in GPS module. When the GPS icon turns green, it means
the device has successfully located.

7
INSTALLATION GUIDE:
1. Turn off the car engine.
2. Insert the SD card into the SD card slot.
Note: Please use high-speed SD card (above Class10) with a capacity of
not less than 8G. For the first time of use, please format the SD card on
the device.
3. Mount the bracket on the device and attach it to the windshield of the car.
4. Insert the car charger into cigarette lighter.
5. Connect the USB port of the device to the car charger.
Note: During wiring, the charging extension cord can be laid along the
windshield edge of the car.
6. Adjust the lens position to make sure the lens is level with the ground.
7. Start the engine and check if the device is installed correctly.
Note: When the device is installed correctly, the working indicator light will
be on; when the device starts to record ,the recording indicator flashes.

8
SPECIFICATIONS:
MCU HS3559V200
Case Material Black Plastic
Memory SPI Flash
Display Display 3. 0'' IPS
Resolution 640*360 pixels
Video Resolution 3840 X 2160P/30 fps
Front Camera Sensor Sony IMX415
Video Resolution 3840 * 2160
Lens 6 glasses
Viewing Angle 170 °
Touch Screen Yes
GPS Location Support
Battery Li-ion 3.7V, 230mAh
Video Compression H.264
Video formats MP4
Photo Format JPEG
G-Sensor Support
Parking Monitor Support
Storage Support 128GB MicroSD Max (Not included)
Input Power DC12V-24V, 2A MAX
Rear camera Support

9
TROUBLESHOOTING GUIDE:
If there are problems with the device,please refer to the following methods
to resolve.
1. Unable to boot.
Check whether the device is properly connected to the car charger. If it is
started manually, check whether the battery power is too low and need
to be charged. If there is a program problem, you can press the RESET
button to restore to the factory settings.
2. Automatically stop the recording or do not cycle the recording.
Because of the huge amount of video data, it’s possible that memory
CARDS can’t read and write fast enough. Please use a high-speed TF
card such as a C10 high-speed card. It is also possible that the G-sensor
function is opened and the memory card is full of locked files. Please
turn off G-sensor and format the memory card.
3. The video or photo is not clear.
Please check the lens if there are dirty and finger marks. Please clean the
lens surface before working to keep the lens clean and tidy.
4. The screen freezes.
Please press the “RESET” button with a pin to restart the device.
5. Display turns off after a few minutes.
Please check the screen saver setting and select “off”.
6. Memory card is full .
Please allow loop recording to overwrite older recording files or delete
unwanted files including emergency recordings.
7. Camera feels warm during operation.
It is normal for the camera to get warm during operation. Please bear
in mind that the if the camera is exposed to high temperature for a long
period of time, it might fail to boot up. Cool it down and try again.

10

Distributed by:
Electus Distribution Pty. Ltd.
320 Victoria Rd, Rydalmere
NSW 2116 Australia
www.electusdistribution.com.au
Made in China