Dashcam doesn't delete files correctly and ends up filling all the sdcard space after that it can't record anymore.
Also sometimes it makes files with wrong date "01.01.current year" and you end up with full sdcard.
Other people have the same problems, check the comments under nanodashcam.com updates :
David T
01/23/2017 4:38pm
Only had it for a few weeks.
Loop recording stops once card memory's full. Date and time decided to reset itself to 1st Jan 2016!
...
Craig
02/18/2017 8:15pm
I have the same issues as David. The fault with loop is my major issue ...
...
TM
01/29/2017 11:44am
Have downloaded and used latest firmware 26122016, but camera will not overwrite old files, I need to reformat every time card is full.
Also sometimes it makes files with wrong date "01.01.current year" and you end up with full sdcard.
Other people have the same problems, check the comments under nanodashcam.com updates :
David T
01/23/2017 4:38pm
Only had it for a few weeks.
Loop recording stops once card memory's full. Date and time decided to reset itself to 1st Jan 2016!
...
Craig
02/18/2017 8:15pm
I have the same issues as David. The fault with loop is my major issue ...
...
TM
01/29/2017 11:44am
Have downloaded and used latest firmware 26122016, but camera will not overwrite old files, I need to reformat every time card is full.