Liteon LH-20A1S 9L05 Firmware Will not Update to 9L08

Okay so I downloaded the new firmware from lite’s site it doesn’t recognize my drive. I’m sure I updated it from 9L03 to 05. I have downloaded 9l08 from http://forum.rpc1.org/dl_firmware.php?download_id=2407 and tried the rpc1 version and it still doesn’t work. Nero tools reports the firmware version but it just won’t update. Am I missing some really obviously trick that I’ve forgotten since the last time I flashed it? ANYWAY any help I could get would be great. PS up until these last discs I bought (ritek ridata 8x dvd+rw’s & the 32x cd-rw Verbatim) I’ve loved this drive.