: The prefix "G" followed by numbers is a standard naming convention for some 70mai dashcam models (like the G500 or G150 series). The "G150.mp4" file is likely a saved video segment from your car's camera.
: Ensure the extension is strictly .mp4 .
: if the file is 0KB or significantly smaller than 10MB, the recording was likely interrupted (e.g., the power cut during a car accident), and the file header is missing. 3. Repairing a Corrupt G150.mp4
: This is a command-line tool specifically designed to fix MP4 files that didn't "finish" recording by using a healthy file from the same camera as a reference.
: Websites like Fix.Video can sometimes reconstruct the metadata if the video data itself is intact. 4. Safety Warning
If the video is important (e.g., for an insurance claim) but won't play: