Please perform the following step as shown in the picture below:
When installing: Make sure that the connectors are attached firmly to the system board.
In step [4], release wireless antenna cables from the cable guides.
For ThinkPad SL510, L510, and L512:
For ThinkPad SL410, L410, and L412:
When installing: Make sure that the cables are attached to the cable guides firmly .
Attention: When you route the cables, make sure that they are not subjected to any tension. Tension could cause the cables to be damaged by the cable guides, or a wire to be broken.