I have a Yi Home camera running firmware 188.8.131.52C_201910080934 and it worked fine until a few weeks ago. Suddenly it is recording continuously to the SD card and so filling the card in a few days rather than only recording when motion is detected and the card lasting a month or more before overwriting. It also makes it difficult to review recordings via my phone as you can’t skip to motion detected parts - you just have a solid real time 72 hours to look at.
In settings ‘motion’ is set to ON
Sensitivity level is set to LOW
Activity zone has been made smaller so it only points at my drive - no trees etc.
Activity Detection Recording is ON
These settings have always been like this and it used to work OK.
What else can I do to go back to only recording when motion is detected?