Translating step 6
Examine the controllers rubber guards to see if it needs to be replaced or simply needs to be readjusted. If it is damaged, replace the rubber guard with a new one for the correct model, then, proceed to the next step. If not, proceed to the next step.
Carefully slide the rubber guard with the area that sticks out more going down into the slot (The crater part of the rubber guard should be in place for the R2/L2 slots; see picture for directions). Once in place, ensure it is snugged and secure.