How to install FlashCap
How to install FlashCap-30
1. The image below shows the FlashCap and a FlashTap without a cap. The FlashCap has two notches, as indicated by the red arrows.

2. Align the notches on the FlashCap with the tabs on the FlashTap, and firmly push the FlashCap all the way down.

How to install FlashCap-24
Regardless of the cap's orientation, it will function correctly by pressing it on firmly.