Introduction
The power cable developed an intermittent fault near where it enters the device so I needed to disassemble it.
Tools
- 
                  
                  - 
            Only 2 screws for main body case. 
- 
            The left hand screw was covered by a softish translucent disc (shown in bottom left of photo) - easily removed with a pointy spudger. 
 
- 
            
- 
                  
                  - 
            Gently work the spudger blade in and depress the 2 marked snap fit clips enough to free the top of the case. 
- 
            Once the two clips on this side are free you should be able to wiggle the top of the case enough to hinge it open. 
 
- 
            
                            
                            Conclusion
                          
                          To reassemble your device, follow these instructions in reverse order.