Nintendo’s Official Wiimote Fix = Smack It

Friendly Nintendo Help Desk Lady: “Okay - I want you to take the remote, button side down and smack it into the palm of your hand two or three times.”
Russ: “You’ve got to be kidding”
Friendly Nintendo Help Desk Lady: “No sir, do it hard enough that I can hear it across the phone line but not hard enough to damage the remote”
Russ: “You’re sure?”
Friendly Nintendo Help Desk Lady: “Yes, sir.”