I just had a scare with my lite-on Dg16d4s I was getting the dreaded open tray error. Everywhere I looked people were saying it was the laser and I am convinced that a weak or dead laser would indeed cause this. However my problem was a much easier fix. I had a sticking spindle motor. In my opinion you should try these few things before messing with the laser based on my experience with the issue.
1. Dirty or scratched disk (clean or try different disk)
2. Dirty laser lens (dont adjust anything just clean the lens)
3. Stuck spindle motor (remove and lubricate with WD-40 work free)
4. Various other laser tweaks (as found in other threads about open tray)
I hope this helps someone
1. Dirty or scratched disk (clean or try different disk)
2. Dirty laser lens (dont adjust anything just clean the lens)
3. Stuck spindle motor (remove and lubricate with WD-40 work free)
4. Various other laser tweaks (as found in other threads about open tray)
I hope this helps someone