How to remove the Dell laptop to replace the fan? First remove the laptop battery, then unscrew all the screws, and then extract the computer hard disk and external optical drive.
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1. First, move the power switch to the right to remove the rechargeable battery, unscrew all the screws, and then pull out the computer hard disk, as shown in the following figure.
2. Unscrew the screws, and then remove the keyboard.
3. Use a crowbar or a screwdriver to push the lock into the computer keyboard and then pull out the cable below the computer keyboard, so that the computer keyboard will be removed.
4. Use a screwdriver to unscrew the screw with the red circle and the wire with the red circle pulled out, and then use a crowbar or a slotted screwdriver to break it open. As shown in the figure below:
5. Use a screwdriver to unscrew the red circle screw and its thread so that the board can be removed. Then use a screwdriver to unscrew the red circle screw and its fan cable. Then you can replace the fan.