A new firmware for Yi Dashcam is up. You can update it through the Yi Dashcam app or you can manually download the .bin file here.
The most noticeable changes in this version 1.03.011, are the new start up/shutdown sound and much improved wifi transfer speed when you need to download a clip.
The 1.03.011 version changelog in Chinese.
Version 1.03.011-CN
界面增加按键音选项
增加720p分辨率选项
在电池没电情况下开机跳出时间设置界面
在熄火时显示驾驶简报界面
开机优先检测卡是否损坏机制
优化在线回放本地视频的速率