Repair manual

Inspiron 8500 / 8600 / Latitude D800
Precision M60
The chip (24u04) is located on top of the motherboard under the hard-drive caddy approx 50mm in
from the headphone socket on the left side of the laptop.
Short circuit the chip during booting and start again without paper clip. Now you get the Fn-X screen.
Or
Short circuit the 24u04 chip during booting and release when the cursor at the display flashes.