Introduction
This guide will show you how to properly remove and replace the Casio Exilim EX-Z80 camera lens in the case that the lens has been broken or scratched. It will require the use of the Casio Exilim EX-Z80 Back and Front Cover Replacement Guide.
Tools
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            Remove the four 3 mm black screws from the bottom of the camera using a Phillips #000 screwdriver. 
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            Open the battery compartment with your thumb or index finger. 
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            Remove the single 2 mm silver screw that is now exposed using a Phillips #000 screwdriver. 
 
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            Open the USB port tab. 
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            Remove the single 2 mm silver screw using a Phillips #000 screwdriver. 
 
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            Carefully remove the silver strip from left side. Open the battery cover and remove the metal strip with fingers by sliding it to the left. 
 
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            With the metal spudger, pry out the edge of the silver strip at the bottom right side of the camera. 
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            Carefully remove the remaining part of the metal strip. 
 
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            Remove the two 2 mm silver screws from the top corners of the camera using a Phillips #000 screwdriver. 
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            Remove the three 2 mm screws from the left side using a Phillips #000 screwdriver. 
 
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            Using a small opening tool carefully release all lock tabs at the top and on the side of the camera from their locked position. 
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            Using your hands, carefully separate the front and back panel from the camera. 
 
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            Pry the square holes that hold the LCD screen up with a metal spudger until you see the raised tabs in the metal holes. 
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            Repeat the process with the holes around the four edges of the camera. 
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            Insert the metal spudger into the gap of the metal case and pry up the LCD screen. 
 
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            Hold up the LCD screen in one hand and hold back the button cable with the other. 
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            Pull on the LCD screen until the yellow display cable is fully out of the metal case. 
 
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            Lift the retaining flaps on the two ZIF connectors that secure the the lens ribbon cables to the motherboard. 
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            Carefully pull the two ribbon cables from their sockets on the motherboard. 
 
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            Turn the camera around and locate the holes on the metal panel. 
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            With a heavy duty spudger, gently poke through the holes, releasing the lens from the main portion of the camera. 
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            With your index finger and thumb gently pull the full lens out. 
 
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To reassemble your device, follow these instructions in reverse order.