You have been working with the CF-20 as a tablet and want to reattach it to the keyboard.
With the computer unfolded as though it were attached and the screen was separated at about a 90 degree angle from the screen:
- Ensure you are facing the keyboard and that the screen is level with the tablet screen facing you, parallel to you.
- Align the screen above its dock.
- Press down evenly and simultaneously on both sides until you hear each side click into place.