try to contact Liteon (throught the website) and ask for the correct firmware. and while you're waiting from them, maybe more people from here will have an answer for you. I had simillar prob, Bought a Lite-on(according to the box) opened the box and it was an LG. went to do Firmware update, so obviously I go to LG... well in the end I used a liteon update. pain in the ass that was took forever to find correct update, so don't expect an email solving your issue right away from lite on.
try these guys out they seem to have a lot of lite-on fmwares
http://codeguys.rpc1.org/firmwares.html