It usually associated with the SDHC memory card,when the car DVR system detects error from SDHC memory card, it will go to “self-protection mode”.  There are some troubleshooting steps to resolve the issue.

1. Reset your car DVR (refer http://www.roadmatedvr.com/article.php?search_category_id=30&page=4&article_id=66).

2. Try reformat the SDHC memory card.

3. Try another known good SDHC memory card. We suggest only purchase name brand SDHC card through reputable resellers. There are many counterfeit and underperforming SDHC card out in the marketplace.

If you still experience freeze-up issue, please contact us at info@roadmatedvr.com