"Sharpness" in setting: The opposite effect is set to "strong" and "soft". If set to "soft", the actual effect is "strong". If set to "strong", the actual effect is "soft". "Rotate" in Settings: When set to On, the recorded video will be flipped upside down, but the screen display will not be turned upside down. This design does not have any benefit, but it will cause the screen display to be reversed when the SJ4000 upside down record a video (such as when using a driving recorder), can not normally view the display and operation. The above problems hope to be corrected in the new firmware, thank you!