Can i go back from 4.4.2 to 4.3 official firmware

yes you can just uncheck auto rebot on odin and check f.reset time. and once you get the green pass icon on odin unplug your device from usb and remove the battery wait 60 sec. an put it back on and then press and hold vol down home button and power untill you see anandroid logo then use volume keys to scroll down and up and power button to select . do a wipe on factory settings and cache and then rebot and congratulations you are back on your desired old version.