Firmware upgrades

# Button timer: As well as the current three and five seconds, photographers can now increase the time interval between when a button is pressed and when the camera reverts back to the current mode, to eight seconds. This provides for more time to make necessary adjustment in difficult situations and lets enables better customisation for personal preferences.
# Enhanced one-touch WB functions
In addition to one-touch WB, test picture, my mode and preview - customers can now select a WB OFF mode. By choosing this function, the WB button is disabled in order to avoid any unintentional activation.
# Security step
When erasing both RAW and JPG files of one image, a new security step has been added. The camera will display a warning message to alert users that both images will be deleted. This additional step ensures data will not be lost unintentionally.