![]() I use the "FAT32 Format" for Windows to format the card with a FAT32 file system as stated in the Zenfox U1 user manual. I use the h2testw program to verify all of the file system storage in each microSD card before I put it into a dashcam. SanDisk Extreme Pro 256 GB UHS-I U3 A2 V30.SanDisk 256 GB High Endurance C10, U3, V30.I've tested the following microSD cards in the Zenfox U1 2-channel dashcam I'm trying to get Zenfox support to recommend a specific microSD card to use with the U1 to eliminate that from the conversation once and for all. Any time I drive my car, there will be one to three occurrences of the frame loss at a file transition problem. ![]() I reinstalled the Zenfox U1 in my car this past week. I've tested with the Zenfox hardwiring power adapter and the USB power adapter power the U1 both in my filming studio and in my car. I've now tested three different microSD cards in the Zenfox U1 2-channel dashcam and when sitting on my desk in my filming studio, the Zenfox U1 2-channel dashcam can run 10 hours with no frame loss issues occurring. When Zenfox support provides the additional information and fix for the dropped video frames, I'll resume the review. I've paused my review of the Zenfox U1 2-channel dashcam for now. I've reported this issue to Zenfox several weeks ago and they are investigating the issue and looking for a fix. When the problem occurs the filename time gap is 63 to 65 seconds. In the following examples, you can see that when it's working correctly, the filenames have a 60 second gap (maybe even 61 seconds at rare times). When that delay occurs, there are 3 to 5 seconds of video footage being lost. It appears that the video file storage process is getting delayed in storing the video content by 3 to 5 seconds when this occurs. ![]() The filenames of the video files also had a longer than one minute gap (front and rear video files). I found more than a few examples where I would find the rear dashcam's video footage would be listed at 59 seconds in length. The Zenfox U1 has a 1-minute file rotation time period. ![]() These ongoing comparisons of video footage had me looking a lot at the video files generated by the Zenfox U1 cameras. I've been comparing the Zenfox U1 rear video footage with another vendor's rear video camera footage because the other vendor's camera is generating very dark video footage. I'm still waiting on Zenfox support to supply me with a definition of what it should be doing in motion based parking mode.ĭropped Video Footage At File Transitions When I obtained the Zenfox hardwiring adapter, parking mode worked well at that point. It still continued recording in normal mode if it did not go into parking mode. It would sometimes start parking mode after 10 minutes of being motionless, on rare occasions it would start after 5 minutes of being motionless and other times it would not go into parking mode at all. I was getting somewhat inconsistent behavior with the motion based parking mode. The U1 user manual does not clearly define the parking mode operation when powered by the 12-volt power port adapter (motion based parking mode). I'm quite impressed with the overall video quality from both cameras. Several weeks ago I started a review of the Zenfox U1 2-channel dashcam.
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