tring to install a fresh rom for eken a70m gsl1680e tablet. i am rooted. downloaded ph_a70x_auto_auto_gc0308-gc0308_81xx_20131012 from eken website. i think this is the right firmware? tried using livesuit.exe..... . no help. says image file invalid. tethering with vol down + power. any ideas? is the firmware wrong? or is there a different way i am supposed to do this? any help is appreciated. thanks in advance.