Unfortunately it seems to have a big bug. After a few hours in parking mode (buffered PM with Autoevent detection), the camera simply stops recording. This morning when I checked, the dashcam was still turned ON and the Cellink Neo still had about 26% battery left. I turned the camera off, without checking the screen, because I wanted to check the SD card on my PC. I realized that the last recorded clips were from yesterday around 18:00. There was still about 48 GB of free space on the SD card.
@viofo - you might want to check that before releasing the stable FW. This is a huge issue, much worse than random beeps.