The invention relates to a method for removing inorganic compounds from a section of soil. Therefore, a user can easily change to a desired set value at the photo opportunity. File types such as images may have optimal data segment boundaries set at the file boundaries. The luminance observation value is an observation result of the luminance for an entire imaging screen. An electronic device having the connecting assembly is also provided. The data may be dynamically reconfigured by a user to reflect changes in the authentication environment such as a new smart card type, new data model on a card, or new remote authentication mechanism.