VIOFO A149 Pro Duo User Manual & Setup Guide

VIOFO A149 Pro Duo acting up? Lost the booklet? No stress.

Whether you're setting up the VIOFO A149 Pro Duo for the first time, trying to work out what a flashing light means, or getting parking mode going, this is our plain-English cheat sheet. Everything here follows VIOFO's own A149 Pro Series manual, and the full PDF is linked at the bottom.

Quick Specs & What's in the Box

• Recording: 4K 30fps front (Sony STARVIS 2 IMX678) + 1080p 30fps rear, HDR on both
• Screen: 2.0 inch. Power: supercapacitor, DC 5V 2A input
• Wi-Fi: Wi-Fi 6, 2.4 GHz and 5 GHz. GPS: built into the mount
• microSD: up to 512 GB, not included
• In the box: front camera + GPS mount, rear camera, CPL-800 front filter, 6 m rear cable, 3.5 m car charger, 0.5 m Type-C data cable (data and firmware only, not for power), trim tool, spare sticky pad, 3 static stickers

First-Time Setup

1. Insert the card until it clicks. The camera must format it before first use.
2. Mount the front camera behind the rear-view mirror, inside the wiper sweep, on clean, grease-free glass.
3. Fit the rear camera on the rear windscreen clear of the demister lines. Power the front camera off before plugging in the rear cable.
4. Power it through the POWER port on the GPS mount, using the car charger or the HK6-A.
5. Run the setup wizard: choose language, time zone and speed unit (pick km/h), then confirm the card format. Time and date set automatically once GPS locks. If you're in a daylight saving state, turn on Daylight Saving Time in System Settings when it applies.

Buttons & LED Cheat Sheet

Button	While Recording	While Stopped (Standby)
Menu / Power	Press: photo. Hold 2 s: menu. Hold 6 s: power off	Press: menu. Hold 6 s: power off
Up / Record	Press: stop recording	Press: start recording. Hold: format card
OK / Protect	Press: photo + lock current file	Hold: open playlist
Wi-Fi / View	Press: change live view. Hold: Wi-Fi on/off
Down / Mic	Press: audio on/off. Hold: parking mode on/off

LED	Status	Meaning
Power	Solid red / Flashing red / Off	On / Firmware updating (don't unplug!) / Off
REC	Solid red / Flashing red	Recording / Not recording (check the card)
MIC	Solid blue / Off	Audio on / Audio off
Wi-Fi	Flashing blue / Solid blue / Off	Waiting for phone / Connected / Wi-Fi off

Connecting the VIOFO Dashcam App

1. Hold the Wi-Fi button until the Wi-Fi LED starts flashing.
2. On your phone, join the camera's network (it looks like 5G_VIOFO_A149P_XXXX). Default password: 12345678.
3. Open the VIOFO Dashcam App, tap Add Dash Cam and pick your model. Stay within about 10 m.

Parking Modes (HK6-A or Battery Pack Required)

Mode	What It Does
Hybrid Parking Recording	Starts in time-lapse, low bitrate or event detection, then drops to Low Power Impact Detection when your Cut-off Time, Cut-off Voltage or Cut-off Battery Pack Capacity is reached. Needs one of those set.
Low Power Impact Detection	Camera sleeps, wakes in about 2 seconds on an impact and records 1 minute (up to 3 if movement continues).
Auto Event Detection	Records on movement, saving 15 s before and 30 s after.
Time-lapse	1/2/3/5/10 fps, no audio. 1 fps offers Super Night Vision. VIOFO's pick for hot days.
Low Bitrate	Continuous recording at a lower bitrate for smaller files.

Find these under Video Settings > Parking Recording. Cut-off Voltage options are Off, 12.4V/24.8V, 12.2V/24.4V and 12.0V/24.0V (HK6-A only). Cut-off Battery Pack Capacity is 5/8/10/15% (BP60 or BP100 only). Geofencing lets you set up to three zones, like your garage, where the camera shuts down instead of entering parking mode.

Firmware Updates

1. Download the latest A149 Pro firmware from VIOFO's Firmware & Manual page and follow VIOFO's instructions there.
2. Format the card in the camera first, so it reads and writes reliably.
3. Don't cut power while the Power LED flashes red. An update can reset your settings to default, so check them afterwards.

Compatible Accessories

• VIOFO HK6-A Hardwire Kit (see our HK6-A setup guide)
• VIOFO BP60 or BP100 battery pack
• VIOFO BTR200 Bluetooth remote: with the camera on, hold the remote's lock button for 3 seconds. Solid blue means paired.
• VIOFO CPL-600 rear filter

Common Questions & Troubleshooting

The REC light is flashing and it's not recording. Why?

Almost always the card. Stop recording, hold the Up/Record button to format it in the camera, and use a high-endurance card of 512 GB or less.

Parking mode won't work on the car charger.

That's normal. Parking recording needs constant power from the HK6-A (or a BP60/BP100), connected to the POWER port on the GPS mount. The camera's own Type-C port doesn't support parking mode.

The rear camera isn't showing up.

Power the camera off, reseat the rear cable at both ends, then power back on. Also check Rear Camera in the settings isn't set to Off or 'Only On while Parking'.

Where are my locked files on the card?

Loop footage is in DCIM > Movie, locked files in DCIM > Movie > RO, parking files in DCIM > Movie > Parking and photos in DCIM > Photo. Locked files can use up to 30% of the card before the oldest get overwritten.

I forgot the Wi-Fi password.

Use Reset Camera Settings in System Settings to go back to defaults, then reconnect with 12345678.

Voice control isn't responding.

Voice commands work in English, Chinese, Russian and Japanese, and the command language must match the camera's system language. Try 'Take Photo', 'Lock the Video' or 'Turn On Wi-Fi'.

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Official User Manual

Here's VIOFO's official A149 Pro Series user manual, with installation diagrams and every menu setting.