Nexus 4 Pro S Not Recording? Common Causes and Fixes

TL;DR: If your Nexus 4 Pro S dashcam from Vantrue isn't recording, check the SD card compatibility, power connections, and firmware updates first. These are the most common issues preventing proper recording.

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Nexus 4 Pro S

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Triple STARVIS 2 Sensors 3-Channel 4K+1080P+2.5K Recording PlatePix™ License Plate Capture Optional LTE Live Monitoring

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Quick overview

• Ensure you are using a high-quality, compatible microSD card (Class 10/UHS-1 recommended) with sufficient free space.
• Check the power supply—make sure the dashcam is properly connected and receiving consistent power, especially if using parking mode.
• Verify that firmware is up to date to fix bugs causing recording failures.

What to look for in Canada

Canadian driving conditions, especially in winter, can affect dashcam performance. The Nexus 4 Pro S, like many dashcams including Vantrue’s models, requires attention to a few factors:

• Cold starts: Extremely low temperatures can temporarily affect battery and device function. Using a vehicle’s constant power can help maintain functionality.
• Heat tolerance: In the summer, direct sun exposure on the windshield can cause overheating. Parking mode may switch off automatically if the device overheats.
• Parking mode: To take full advantage of parking mode, a stable power source such as a hardwire kit or a dual-battery system is recommended to avoid draining the vehicle’s battery.
• Installation considerations: Make sure the dashcam is mounted securely on the windshield to avoid disruption in recording caused by vibrations or disconnections. Positioning also matters for clear video capture.

My recommendation

The Nexus 4 Pro S is a solid choice for Canadian drivers looking for reliable video capture. If you primarily drive in urban areas and want an easy setup, a good quality microSD card (64–128GB) and charging from a 12V USB port plug is sufficient. However, for those who want reliable 24/7 monitoring with parking mode, especially in colder climates, investing in a professional hardwire kit is strongly advisable to provide constant power and protect your vehicle battery.

Firmware updates, directly available from Vantrue’s site, should be checked regularly to ensure smooth operation and compatibility with newer microSD cards. If your Nexus 4 Pro S frequently fails to record, consider verifying these basics before assuming hardware failure.