I have a JLMS XJ-HD165H LiteON DVDROM drive
Just trying opening it there, sounded like a loose screw rattling around. So just took of the cover too see i could see it no luck.
Put it back together fine, now when the pc is turned on the drive door will open up and stay open.
The only way of keeping the door shut is by holding it closed, until it trys to open.
And it doesn't read dvds now either lol
So guessing something to do with the laser ??
Winxp pro and the bios sees it, on primary slave.