Introduction
These instructions will demonstrate how to remove the logic board from the KDDI Kyocera A5521K.
Tools
- 
                  
                  - 
            Turn the phone over to expose the battery cover. 
- 
            Apply pressure to the back of the battery cover to slide it down. 
- 
            The battery cover is now separate from the phone. 
 
- 
            
- 
                  
                  - 
            Remove the battery by pushing it up and out from the bottom. 
- 
            The battery, cover, and phone should now be separated. 
 
- 
            
- 
                  
                  - 
            Remove the black, rubber screw caps towards the top of the back of the phone to reveal two additional screws. 
- 
            Remove the two screws with a Y0 screwdriver. 
 
- 
            
- 
                  
                  - 
            Rotate the phone 180 degrees. 
- 
            Carefully separate the back plate from the remainder of the phone. 
- 
            The back plate should now be detached from the rest of the phone. 
 
- 
            
- 
                  
                  - 
            Rotate the phone approximately 45 degrees to the right. 
- 
            Gently pry up the SD card slot with a spudger. 
 
- 
            
- 
                  
                  - 
            Lift up on the first connection shown using a pair of pliers. 
- 
            Disconnect the first connection between the logic board and the wire using the pair of pliers. 
 
- 
            
- 
                  
                  - 
            Repeat the above steps for the second connection. 
- 
            Use the pliers to pry up the connection. 
- 
            Use the pliers to disconnect the connection between the logic board and the wire. 
 
- 
            
- 
                  
                  - 
            Lift up on the bottom of the logic board with a spudger. 
- 
            Gently remove the rest of the logic board from the phone. 
 
- 
            
To reassemble your device, follow these instructions in reverse order.