Yoosee firmware bugs

[Admin]

I bought the camera 3 weeks ago. After updating to the latest firmware, it seems unable to playback the recorded video. Recorded videos are not stored in sd card too. Also, camera face upwards when it starts up and cannot be manouvered to face downwards by swiping down. It has to be manually pushed down. Any ideas why?<br>Can it be rolled back to the previous firmware? Because the previous firmware is not experiencing this problem.