The WD105 runs on all Series 5 players except the AU5. The BrightSignOS version should be 9.0.15 or higher.
You will need the following tools for installation:
Phillips screwdriver with a PH2/PZ2 tip (PH2 is the US standard, PZ2 is the international standard)
Phillips screwdriver with a PH1/PZ1 tip (PH2 is the US standard, PZ2 is the international standard)
8-inch (200mm) length tweezer with a serrated tip (or precision mini needle-nose pliers)
