What Causes a Dash Cam to Flash?
3 Answers
A flashing red light on a dash cam indicates that it is in normal recording mode, which is a normal phenomenon. During driving, the dash cam usually activates automatically when it detects vehicles or pedestrians within the lens range, triggering the recording function. A dash cam is a device that records images, sounds, and other relevant information during vehicle travel. After installation, it can capture the entire driving process in video and audio, providing evidence in case of traffic accidents. It can also serve as a parking monitor. The video footage from a dash cam should not be edited, as tampering with the footage may render it useless in determining liability during accidents. Additionally, it helps prevent unavoidable fraudulent claims in today's society. A dash cam can record continuously while driving, capturing details such as time, speed, and location. It can also be used at home as a DV camera to record life's moments or as a home surveillance device.
I've seen quite a few cases of dashboard camera screen flickering. The most common issue is power supply contact problems. The cigarette lighter adapter tends to loosen over time, causing unstable power supply and screen flickering on bumpy roads. It's recommended to check if the interface is properly plugged in or try a different charger. Secondly, faulty memory cards can also easily cause flickering. Cards with insufficient speed can't keep up with read/write operations, resulting in screen distortion. It's advisable to use Class10 or higher speed cards and format them regularly. If a newly installed device flickers, it might be due to overly sensitive motion detection or night vision mode settings in the configuration. Refer to the manual to lower the sensitivity, which usually solves the problem. Additionally, poor heat dissipation causing the device to freeze can also lead to flickering. In summer, it's best to avoid installing it in direct sunlight. If the cause still can't be identified, consider hardware failure and contact the manufacturer's after-sales service for inspection, which is the most hassle-free solution.
Don't panic when encountering dash cam screen flickering. I usually start troubleshooting from simple areas. First check if the power cable is pinched by the seat causing poor contact - especially in older vehicle models where wiring aging is more prone to issues. Then examine the memory card status; when the card is full or has too much fragmentation, read/write delays can cause flickering - try formatting or replacing with a new card. Another easily overlooked point is voltage instability, particularly when additional electrical appliances like car refrigerators are installed - the dash cam may flicker when voltage drops below 11V due to insufficient power supply. If flickering occurs at night, it might be interference from the infrared fill light of night vision function reflecting off the windshield film - simply remove the light-blocking film or adjust the installation angle. Finally, recall whether firmware was recently updated, as incompatible new versions can also cause screen abnormalities.
