Introduction
This is a guide that shows you how to replace the fan for a ASUS X552LAV-BBI5N08 laptop.
Tools
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            Slide the right button to the left. 
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            Hold the left button to the right. 
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            While you hold the left button in position, slide the battery out by pushing it away from you. 
 
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            Locate the bottom panel. It is at the opposite end of the battery. 
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            Remove the two 12mm screws at the bottom panel with a Tri-wing Y1 screwdriver. 
 
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            Remove the four 5.5mm screws located on the hard drive case using a Tri-wing Y1 screwdriver. 
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            Slide the hard drive out to the left. 
 
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            Use opening tool to split keyboard from base of the laptop. 
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            Make sure to start from one end and go around the edges. 
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            Use Tri-wing Y1 screwdriver to remove two 12mm screws from battery area. 
 
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            Flip up the small locking flap for the two ZIF connectors. 
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            Unplug connectors that are keeping keyboard connected 
 
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            Flip up the locking flap for the ZIF connector. 
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            Unplug the connector that is keeping the keyboard connected. 
 
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            Remove keyboard from laptop. 
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            Remove the five 4mm screws (with a Tri-wing Y1 screwdriver) that are both connecting the fan and motherboard. 
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            Pull out WiFi from below the cooling fan by lifting the edge nearest to the fan and sliding it towards the fan. 
 
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            Lift yellow ZIF connector from the top of the motherboard to remove the connector. 
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            Lift up motherboard from bottom edge towards the screen. 
 
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            Unplug the two bundled cable connector from pin sockets below the fan. 
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            Remove the motherboard and place on a flat surface. 
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            Remove four 4mm screws with a Tri-wing Y1 screwdriver from the CPU. 
 
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            Disconnect bundled cable connector from the motherboard 
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            Remove fan part from the motherboard. 
 
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            Remove the black tape from the top of the fan radiator. 
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            Remove radiator by tilting it down and pulling it out from the fan. 
 
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To reassemble your device, follow these instructions in reverse order.