I believe the 009 firmware for the X8, X8 Plus, X8-H was released 20160324 but then an update was released a few days later to fix some things. Even if you could install your current firmware again using the sd card method (whicjh I'm not sure about) it wouldn't do any good. If a factory reset hasn't solved your issues then installing the same firmware with the sdcard (which keeps files/settings) won't make any difference. You NEED to use the usb burning tool method. Try using a different usb cable (make sure its a data cable and not a charge-only cable), try a different usb port on your pc and make sure you are following the instructions correctly.