Harold writes in with a troubleshooting question:
Question: How to fix when the light of floppy drive always on or reading? There is no floppy inside it. And second Question is what to do when my laptop doesn’t a have display? I can’t see the display on the monitor its to dark....plsss help...
Answer: When the floppy light stays on constantly its usually one of two things. Either the ribbon cable connected to the drive was put on backwards or the drive has gone bad. If you haven't played with the cable then its most likely the drive itself. It could be possible that the ribbon cable has gone bad too. The drives are inexpensive, only $25 or so. You can check the cable connection and even try swapping out the cable.
For your laptop I have seen that before where the screen is completely blank its usually the motherboard since that's where the video is coming from. If its just dark and you can see something then it could be the LCD display itself.