I had been using my Rexing Dash Cam since Sep 2019. I had not experienced any functionality issues other than the one I am describing below.
- Rexing V1P 3rd Generation Dual Cam.
- Firmware Version: T5.96663.4689.20190729.01
Issue: Windows video player can not open the last videos (front & back) at the time when car is turn off.
Camera is set to record 1 minute videos. Windows media player has no issues playing video when they are a complete full 1 minute videos. Windows cannot plays videos when video length is than 1 minutes.
Action taken to mitigate damaged files issue:
- Micro SDX card replaced several times. Result: No change, same persistent issue
Testing steps with back camera disconnected:
- Formatted MicroSDX card with to clear it.
- Recorded 10 short videos by disconnecting power in 20-30 seconds intervals
- Result: One single file damaged out of 10 videos
Testing steps with back camera connected.
- Formatted MicroSDX card to clear it.
- Recorded 10 short videos by disconnecting power in 20-30 seconds intervals.
- Result: All 20 videos files damaged (10 front & 10 back videos). Windows player no able to play any of the videos.
Conclusion: Dash Cam supercapacitor does not seems to have enough stored power to save the last video file once car is turn off and power is lost.
I replaced the super-capacitor with new supercapacitor thinking it may be bad.
Used same capacitor as the original: "Bitwell supercapacitor BWC5R4355QG, 5.4V-3.5F"
Result: New supercapacitor made no differences. Same persistent issue.
This is a big issue as if I were to have an accident, the dash cam will most likely loose power, and the last file will for sure be damaged.
I am wondering if others in the community are experiencing "damaged files" when the card is turn off.
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