This is mostly like caused by a faulty or incompatible card.
Micro SD Cards play an important role in dashcams, but not all cards are suitable to be used in dashcams.
The dashcam keeps loop recording, it is required to use a reliable endurance memory card.
Check this blog to learn more about cards.
- Please format your card deeply on a windows computer using the GUI format tool. (if you use Macbook, you can just use its default format tool) Click the link to get the tool: https://viofo.com/download/guiformat.exe
- If the issue persists, we suggest you buy a new card we recommend.
You can refer to this when choosing a card.
For further help, contact VIOFO customer service by email: email@example.com