New Thinkware F200 dash cam only save last four minutes of each trip

RickieK

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I bough a F200 dash cam wednesday june 29th.

No matter how many minutes I drive it only save the last four minutes to the original SD card delivered with the dash cam. I have successfully reformatted the SD card but it does not help.

Update:
Yesterday I drove10 - 11 minutes. The original SD card was reformatted before starting.

The following files was produced, each file is 60 seconds:
in cont_rec:
-rwxrwxrwx 1 rickiekaveby staff 83886080 1 Jul 18:33 REC_2022_07_01_18_32_39_F.MP4
-rwxrwxrwx 1 rickiekaveby staff 83886080 1 Jul 18:34 REC_2022_07_01_18_33_39_F.MP4
-rwxrwxrwx 1 rickiekaveby staff 83886080 1 Jul 18:35 REC_2022_07_01_18_34_39_F.MP4
-rwxrwxrwx 1 rickiekaveby staff 83886080 1 Jul 18:36 REC_2022_07_01_18_35_39_F.MP4

in evt_rec:

-rwxrwxrwx 1 rickiekaveby staff 41943040 1 Jul 18:28 EVT_2022_07_01_18_28_28_F.MP4

in motion_rec, after I parked the car:

-rwxrwxrwx 1 rickiekaveby staff 20971520 1 Jul 18:37 MOT_2022_07_01_18_37_13_F.MP4
-rwxrwxrwx 1 rickiekaveby staff 20971520 1 Jul 18:37 MOT_2022_07_01_18_37_25_F.MP4

Note that the event file has a time stamp four minutes before the first save continued recording file. But the trip started maybe five minutes before the event files time stamp.

In the .TWSYS/evt_rec directory there are 41 PEV_*.TMP files, each 40 M large:

ls -l PEV_* | wc -l
41



What happens here? Why does it always (uptil now at leas during maybe 7 - 8 trips) save only the last four minutes?

Rickie Kåveby
 
Update: the dashcam is hardwired by a professional car audio company.
 
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