I haven't run the test on my card yet. I'm going to do that now. I'm running 0903 on my camera. With a Sony 32GB Class 10 card.
.... h2test reported no errors.
Actually I have a BMW, but didn't know that it had that option to turn it off. Actually I'm awaiting on a part from ebay so I could wire up my cam to the fuse panel if it ever arrives. I kinda like the always on cig outlet since I can charge my phone when I'm not in the car.
It was the service tech at my car dealership who told me about the option to change the way the cigarette lighter can be changed, and he was right.
I've since wired two of these into my car
https://www.ebay.co.uk/itm/130905268784 so I can use the lighter socket for other devices if I wish, I also fitted one for the rear camera. (It did take over 2 weeks to arrive however)
I used one of these to connect it into the cars fuse unit which is behind the car glove box on my car
https://www.ebay.co.uk/itm/190820531283. it's just a little neater.
The Samsung C6 16gb cards I've been using the last few days, seem okay...at least so far, though my Samsung 32gb C6 didn't seem to fall over either. I may re-insert the 32gb again in one of the camera's and just leave it for several days just to give it a thorough test again.
One of the problems is.. my car doesn't get to be used every day, though I did do a long run last week of about 450miles round trip without any issues (That was with just 1 camera in car) the 2nd one hadn't arrived at that stage.
Its obvious that nearly all of us initially purchased 32gb class 10 cards, and they may yet prove to be okay once the firmware is sorted, at the moment I dont think we have conclusive prove of whats causing these isues for some users, but I'm suspecting the C6 and possibly the C4 cards are more compatible if only based on the comments about C10 cards in the manual. I purchased a few C6 Samsungs cards (plus couple other brands) because I noticed many of the big sellers are starting to reduce stock of cards other than class 10 cards. (just my own observation) I chose class 6 because it still uses the standard clock speed as the C4 and slower cards, and although IME class4 cards seem faster enough, the C6 cards give that little extra margin.
All we can do is hope newer firmware versions as they filter through will help resolve these minor issues, in the meantime we continue to collate as much info as we can from each other, see if patterns appear and hope we can narrow it down to a definative cause. IOW what we are doing now...LOL We are however fortunate to have some good guys on here so I'm sure in the end we shall crack it.