Mehulagarwal_1 , via OnePlus 8 , Nov 1, 2020 : Just wanted to know the firmware you guys are running on of OnePlus buds z? Just saw an unboxing video and it seems he had a more later version of the firmware than what mine is running on and I checked again it was buds z and not buds. His was 305.305.666. Below is a screen shot of a part of the video. I have my auto update setting on as well.