The IDWedgeBT Keyboard Application Updater requires a special programming cable. The application has on screen instructions on how to perform the update.
The quick guide contains screen shots of the procedure.
IDWedgeBT-Application-Upgrade-Quick-Guide-Rev-2.0
Download the archive below and extract/unzip to a directory on your PC, there is no installation process, simply run the application from the directory you extracted the archive into and use the special programming cable.
IDWedgeBT-Keyboard-Updater-2.1.zip
The IDWedgeBT Keyboard users manual, with revision history: