Rexing M2 Dash Cam Users Manual

Notice

1. The user menu is to be set up in non-video mode. If the device is in video mode, please proceed only after stopping the video recording.
2. Memory Card: Using a new MicroSD card always requires formatting it to your device. Regularly clear the memory card, as continuous video recording for an extended period of time may produce some protected files that are not subject to long-term protection (these files may not be overwritten during loop recording) and some storage fragments, which must be cleared regularly in order to save usable storage space.
3. Time-lapse photography should not be enabled while driving. This function captures images more slowly than normal but plays in speed-up mode, which may affect the integrity and continuity of your video.
4. On-board Charger: The standard input voltage is configured to 12V. If a voltage greater than 12V, contact your dealer or our customer care via care@rexingusa.com to replace it with a replacement charger.
5. The features described in this operation manual are available for all products of the same type. The device you buy may be a model with optional or additional functions. Menu operations may vary. Please refer to your actual product.
6. Pay attention to the mounting position, which must not interfere with driving or lead to unsafe driving operation. Make sure it is safely secured.
7. A standard 6-meter cable is provided for the rearview camera. It is not recommended to install this type of dash cam if your car is beyond the connection cable range.

Warning

⚠️ The battery (module or pack) must not be exposed to an overheat environment such as direct sunlight or flame.

Never remove, strike, or squeeze the battery or put it in fire. Stop using the battery if it is ballooned, warped, leaking, or shows any other visible signs of damage.

Overview

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Camera Overview

The camera overview diagram shows the following components:

• USB Port: For charging.
• GPS Port: Optional GPS logger sold separately.
• Rearview Camera Port: For connecting the rearview camera.
• Display/Touch Screen: The main interface for viewing and control.
• Front Camera: Captures video/images in front of the vehicle.
• Reset Key Pinhole: Used to reset the device if it crashes.
• MIC Pinhole: For audio input.
• MicroSD Card Slot: For inserting the memory card.
• Speaker: For audio output.
• Power Key: To turn the device on/off or control screen backlight.

Component Functions

Installation and Operation

Due to excessive mishandling, this device could be damaged during transportation. To avoid high cost of troubleshooting and repairs due to repeated mounting and removal, it is recommended to assemble all components first after delivery and test the device with the on-board charger power supply. Make sure that the device is visibly undamaged prior to installation. Contact the Rexing service center in case of any questions.

I. Install the Device

1. Turn off the engine of the car.
2. Place the MicroSD card into the slot.
3. Secure the dashcam to the original rearview mirror of the car.
4. Plug the GPS module (sold separately) into the GPS port and secure the module to a position close to the A-pillar of the car. The antenna receiver side (the side without 3M adhesive) faces the outside and the side with 3M adhesive faces down. It should be properly secured.
5. Plug the charger into the car's cigarette lighter and connect it to the dash cam's USB port with the included extended USB cable.

Note: The optional rearview camera is mounted on the rear of the car. Pay attention to its orientation during installation. Plug the rearview camera connector into the corresponding port of the dashcam once the installation is completed. Adjust the position of the lens to ensure that it aligns horizontally with the ground. Start the engine to check the video functionality of the device.

II. Install the Rearview Camera (optional)

Some rearview cameras are connected through removable coupling connectors. If you receive a product with a separated plug and socketed cable, then connect the plug-in components properly. To avoid damage to the pins and connector holes, never use extra force while making connections. The earphone connector of the rearview camera cable must be plugged into the corresponding port of the device.

Rearview Camera Wiring Instruction:

Align the male portion and the female portion of the rearview camera cable between the arrows before pressing the connectors together.

The rearview camera has two wire routing options:

• Option A: The rearview camera can be mounted at the top of the rear window inside the car.
• Option B: The rearview camera can be mounted right above the car's license plate.

Note: The device is configured with a streaming media rearview camera that provides clear traffic view behind the car. To obtain clearer and more intuitive images, it is recommended to mount the camera above the license plate (as shown by option B).

Instructions for Reverse Trigger Wiring

The red wire of the car's reverse gear wiring is connected to the positive end of one of the car's reverse light. Make sure that the car charger is energized during use.

III. Turn on the Dash Cam

Connect the dash cam to the car charger after installation. Starting the car engine will start the device. The built-in battery will be charged at the same time.

Note: Due to unstable voltages caused by starting the car engine, a voltage fluctuation in some vehicles may be especially obvious. If a flashing screen or some other unforeseeable operating problem occurs when you start the engine, it is recommended to unplug the device from the charger before starting the engine, and then reconnect it after the engine is running.

Basic Operations

I. Video Mode

The screen displays various information and controls:

• 1: Return to the main interface.
• 2: Return to the previous operation menu.
• 3: Start/stop video recording.
• 4: Take a snapshot.
• 5: Locking/unlocking (if locked) a file.
• 6: Audio recording on/off.
• 7: Front/rear view switching.
• 8: Time, date, and weekday display.
• 9: Status bar: An illuminated icon indicates an enabled function; a grayed-out icon indicates a disabled function.
• 10: Adjustment of screen brightness. Click the sun icon ☀️ to decrease brightness and click the sun icon ☀️ to increase brightness.
• 11: Video recording state and duration.

Video Recording Operation:

With a MicroSD card inserted, the device records automatically in video mode after starting. A red indicator ? will flash in the upper left corner of the screen during video recording.

• Press the record icon ? to stop recording.
• Press the record icon ? to start recording when no recording is active.
• Press the snapshot icon ? to take a snapshot.
• Press the unlocked lock icon ? during recording to lock the current video file; the icon will change to the locked lock icon ? at the same time. Press the locked lock icon ? again to unlock the current video, and the icon changes to the unlocked icon ?.
• Press the microphone icon ? to stop audio recording. Touch the microphone icon ? again to start audio recording.
• Swipe the screen up/down to change the view from the front to the rear image.

II. Main Interface

The default interface is the video recording screen after starting. Press the home icon ? to access the main interface, which allows access to all functions and setup menus.

Smart Driving Mode

The Advanced Driver Assistance Systems (ADAS) and Blind Spot Detection (BSD) features depend on traffic conditions and driving state information obtained from the cameras. ADAS enables when the front camera image is displayed, and BSD enables when the rear camera image is displayed. They cannot be enabled simultaneously.

Outline

ADAS refers to Advanced Driving Assistant System. This model mainly includes FCWS (Forward Collision Warning System), LDWS (Lane Departure Warning System), and a stop & go function. These provide alerts or warnings for potential collision hazards or lane deviations.

BSD refers to Blind Spot Detection, which monitors vehicles in blind spots on both sides during driving, providing alerts to reduce the risk of accidents when changing lanes. It is also called LCA (Lane Change Assist).

ADAS and BSD systems can be affected by sunlight, inadequate lane lines, rain, and fog. Accuracy rates are generally between 80-90% during the daytime and 60-70% at night for ADAS, and around 90% daytime/80% night for BSD.

Calibration of ADAS and the blind spot monitoring range is necessary before use to ensure accurate detection of vehicles and lanes.

Disclaimer: The system is a safe driving assistant system and cannot be used as proof for the liability of traffic accidents.

ADAS Calibration

Calibration Flow: Start → Enter smart driving interface → Turn on ADAS → Enter ADAS setup interface → Exit ADAS setup interface → Enter ADAS calibration interface → Adjust by moving the red, green, and yellow lines → Save results and exit → End.

Setup Steps:

1. Open the smart driving application and turn on ADAS. The button turns from gray to blue.
2. Click the settings icon ⚙️ to access the ADAS setup page. Select "Front Car Warning Time" and choose an appropriate option. FCWT refers to the warning time for a potential collision with the car in front.
3. Click the "Lane Change Line-Crossing Warning" option and select an appropriate setting. LCLCW refers to the sensitivity of line-crossing warning during a lane change. High, Moderate, and Low indicators correspond to lane change line-crossing times of 2s, 3s, and 4s, respectively.
4. Click the calibration icon ?️ to access the ADAS calibration page. Click "Next" to enter the calibration interface. Adjust the lines:
   • Move the red line up or down to align with the horizon (intersection of sky and ground).
   • Move the yellow line up or down to the interface between the engine hood and ground.
   • Move the green line left or right to the focal point where the far end of the road intersects with the horizon.

   Note: The range of calibration line adjustment is limited. If extreme adjustment is unsatisfactory, adjust the mounting position of the dashcam or perform fine adjustments of the lens.

5. When the adjustment is accurate, save and exit.

Calibration For Monitoring Blind Spots

Calibration Flow: Start → Enter Smart Driving Interface → Turn on BSD → Enter BSD setup interface → Exit BSD setup interface → Enter BSD calibration interface → Move the box left or right to adjust blind spot warning range → Save the result and exit → End.

Setup Steps:

1. Open the smart driving application and turn on BSD (Blind Spot Detection). The button turns from gray to blue.
2. Click the settings icon ⚙️ to enter the BSD setup interface. Select "Warning Speed" and choose an appropriate option. Warning Speed activates an alarm if a detected vehicle's speed exceeds the set value.
3. Click the "Warning Sensitivity" option and select an appropriate setting. Warning Sensitivity determines when an alarm is activated based on the speed difference between your car and the detected vehicle.
   • High: Alarm regardless of car speed.
   • Moderate: Alarm if the following vehicle is 10 km/h faster than your car.
   • Low: Alarm if the following vehicle is 20 km/h faster than your car.
4. Click the calibration icon ?️ to access the BSD calibration interface. Click "Next" to enter the calibration interface. Adjust the lines:
   • Move the red line to the horizon (intersection of sky and Earth).
   • Move the yellow line to the interface between the car's tail and ground.
   • Move the green line left or right to the focal point where the far end of the road intersects with the horizon.

   Note: The range of calibration of the line adjustment is limited. If extreme adjustment is unsatisfactory, adjust the mounting position of the camera or perform fine adjustments of the lens.

5. Warning Range Setup: Click the square icon ⬜ to switch among the four corners of the left and right zones. The corner indicated by the red spot is adjustable. Click the arrow icons ⬅️➡️⬆️⬇️ to adjust the warning range. Click "Save" after making adjustments.
6. Testing: When "Testing" is on, the rearview camera image shows two warning zones marked in cyan. This function is for demonstrating warning ranges and is off by default to avoid interference. Turn it on manually if desired.

V. Playback Mode (File Management)

The playback interface allows management of recorded video and image files.

Key Functions:

• 1: Return to the main interface.
• 2: Icon to return to previous operation.
• 3: Time, date, and weekday display.
• 4: Image files.
• 5: Video files.
• 6: Front camera video file.
• 7: Front camera locked video file.
• 8: Rear camera video file.
• 9: Rear camera locked video file.

To lock a video file, touch the lock icon ?. To unlock a locked video file, touch the unlock icon ?. For unwanted video and picture files, touch the delete icon ?️. To play a video file, touch the file name.

During playback, touch the pause icon ⏸️ to pause. Touch the scroll up icon ⬆️ to scroll up through files and the scroll down icon ⬇️ to scroll down.

For an image file, touch the file name to enter the full-screen view. Touch the scroll up icon ⬆️ to scroll up through files and the scroll down icon ⬇️ to scroll down. On the file list page, touch the delete icon ?️ to delete a file.

Note: Locked files will not be overwritten by loop recording. If there are too many locked files or the "Locked files full" message appears, back up the files and delete them from the device.

VI. Driving Setup

The Driving Setup menu allows configuration of various recording and sensor parameters:

• Loop Recording: 1 minute or 2 minutes. Video is saved in segments. When the storage card is full, the earliest recorded video is overwritten. The time length in the menu is the duration of each recording.
• Video Resolution: 720P, 1080P.
• Frequency: 50Hz, 60Hz.
• Gravity Sensor Sensitivity: High, Moderate, Low, Off. The gravity sensor detects impacts and automatically saves the current video as a protected file. If the emergency mode is not activated automatically, touch the lock icon ? during recording to manually lock the file.
• Rear Camera Mirroring (On, Off): Displays a reverse image (On) or the original image (Off) for the rear camera view.
• Mute Video Recording (On, Off): Records video with no audio when mute is on. This can be switched by clicking the microphone icon ? on the video recording interface.
• Time Stamp: Off, On.
• Parking Monitoring (On, Off): When enabled, an illuminated parking icon ?️ appears in the status bar. When disabled, a grayed-out parking icon ?️ appears. When activated, the parking monitor enters standby after the engine is turned off. If the car is shocked, the system begins recording.

Parking Monitoring Notes:

• When the engine is off, the monitor uses its built-in battery.
• With a smart hardwire kit (sold separately), the system enters standby after the engine is turned off. The mini USB plug must remain connected for constant power.
• In both modes, a 15-second locked video is recorded after the dash cam is turned on. The screen does not light up, and there is no booting sound during recording.
• When the engine is restarted and parking monitor is active, a "Crash happened during parking. Please check the video." prompt appears.
• Monitoring files are saved in VIDEO_F_LOCK and VIDEO_R_LOCK folders.
• Time-lapse Recording: Off, On. This feature is generally used during parking and should not be turned on while driving. It captures one frame per second and plays back 30 times faster.

Note: When selecting the parking monitoring function, please disable the time-lapse function, or the parking monitor function will not start.

VII. System Setup

The System Setup menu allows configuration of various device settings:

• Stream Media: When switched on, the full-screen rearview camera image is displayed after starting the device.
• Speed Setup: 60 to 160 km/h adjustable. An alarm sounds when driving speed exceeds the set value.
• Speed Error Correction: -6 to +6.
• Satellite Information: Check GPS information status and GPS signal condition.
• Brightness Setup: 1, 2, 3, 4, 5. Sets the screen brightness.
• Volume Setup: 0, 1, 2, 3, 4. Sets the audio volume.
• Sleep Mode: 10S, 30S, 60S, Off. Sets the time to activate the screen's sleep mode. The display remains on without powering off when sleep mode is deactivated.
• Key Tone: Off, On.
• Language Setup: Simplified Chinese, Traditional Chinese, and other languages.
• Time Setup: System time setup.
• System Formatting: Confirm, Cancel. Note: Formatting removes all files (including protected files) from the storage card. Files cannot be restored after formatting. Please back up important files before formatting.
• Version: System version.
• Restore Factory Settings: Confirm, Cancel. Select Confirm to restore system default values. Settings made by the user will be altered.

Track Playback

I. Video Track Playback

The video track player enables display of traveling track information when playing a video.

Operating Steps:

1. Connect the MicroSD card to the computer via a card reader.
2. For initial operation, copy the link contained in "GPS Player Download.txt" to a browser and open it. Depending on your computer system (32 or 64 bit), select an appropriate player program and download it for installation.
3. After installation, click the GPS Player shortcut icon ▶️ to run the player. The player displays videos with front and rear tracks of the road.

Primary features of the player:

• 1. Video Play Window: If video files of front and rear road tracks are recorded synchronously and loaded into the playlist, they can be played separately in split left and right screens.
• 2. Play Control Panel: Controls for playback.
• 3. Open a Video File: Press the button and select the storage path. Click on the desired video file to load it into the playlist. To select multiple files, hold down the left mouse button and drag them to the playlist box.
• 4. Play List: Displays the list of loaded video files.
• 5. Speed And Driving State Indication: Shows speed and driving status.
• 6. Map and Track Display: Visualizes the route and driving track on a map.
• 7. Setup: Configure primary functions such as language, map selection, and speed units.

II. GPS Satellite Connection Exception

Even when GPS is successfully connected to the satellite network, location and environmental factors can affect accuracy. The following factors directly impact satellite signal reception and may cause failures in speed detection and camera reporting:

• Surrounded by heavily wooded areas, too many overhead barriers to satellite signals.
• Underground or in a tunnel.
• Under an overpass or bridge.
• Surrounded by high-rise buildings.

Check Recorded Files with a Computer

1. Unplug the used MicroSD card and place it into a card reader.
2. Connect the card reader to the USB port of the computer. Open the removable disc to see the following file folders:
   • PICTURE: Pictures saved.
   • VIDEO_F/VIDEO_R: Video records of front and rear road tracks.
   • VIDEO_F_LOCK/VIDEO_R_LOCK: Locked video records of front and rear road tracks.

   Note: Be careful when deleting any locked video. Important videos, if any, should be backed up.

3. To play videos or browse pictures, your computer must have the necessary software available.

VI. Backup Files

If you intend to keep important and memorable videos and pictures for a long time, make a copy of each file from the card to your computer. Do not save them in a new folder created on the same storage card, as this will reduce the available space.

Product Specifications

Note: Rexing reserves the right to change the product design and specifications without prior notice.

General Troubleshooting