Can't use Virtual Keyboard with AirTurn BT-105 / 106 Piascore Support May 03, 2018 04:53 Updated Follow Please press and release "Power" button while the BT-106 is connected to the iPad. The keyboard will appear on the screen. Related articles How to update firmware (AirTurn) What is best iPad for reading sheet music? How to download a classical sheet music. Comments 0 comments Article is closed for comments.