I have only had my 750S 2ch for just over a week but I bought a new 64gb Blackview SD card. Since inserting it the dash cam emits a random very loud beep, similar to that emitted by an appliance when the battery is running down. (I had a power pack installed in my vehicle so assume it is not that). I have reformatted now 4 times , but the beep persists. Then I noticed during playback that there are sections of my journey missing. When playing back, when one clip ends and the next one starts, there is a bit missing.
I have tried researching the Beep issue (which didn't happen on the supplied 16gb card) but can't find anything relating to it. It is not related to any jolts in the car (speed bumps for instance) or any other obvious issue.
Can anyone help?