This applies to the Bass Station II

After adding the Soundpack to the Librarian you can audition the patches by double-clicking and pressing a key on the BSII. If the sound doesn't change when clicking this means the firmware didn't update successfully. To check the firmware version on your Bass Station II, follow these steps below.

Hold down the Save button along with the left and right arrow whilst turning on the keyboard. The screen will show btl.

Press the right arrow twice and press the Save button. This is the currently installed firmware on your keyboard.

Power cycle the Bass Station II to exit.

If the firmware version displayed is not 540 please reinstall the librarian software package and confirm.