In this article we will update the firmware of any 4, 5 or 6-string Fretsense instrument using one of the Windows firmware programmers (.exe).
Note: This article covers updating the firmware of a Fretsense guitar or bass with a 15-pin connector and FSI-1 Fretsense Interface.
Note: The firmware programmers for bass firmware 2.16 – 5.16 are named either PRO-4 Programmer or PRO-5 Programmer.