Gemini Hand Controller Quick Start Guide
199 Smith Street · Lowell, Michigan 49331 · U.S.A.
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Gemini Hand Control - Revision 2
Page 3 of 3
Upgrades
If the Gemini Hand Control firmware needs to be updated, a PIC chip replacement must be ordered. The
PIC chip is provided in a 28-pin DIP (dual in-line package) programmable integrated circuit with the
version number marked on the integrated circuit chip.
First unplug the coiled cable from the hand control. Remove the
FLHC back cover to expose the circuit board and IC socket. Note
the position of the notch indicating Pin 1. Gently pry the existing
firmware chip up and out of the socket and replace with the new
firmware PIC chip. Ensure that Pin 1 is in the same orientation as
the original. Re-attach the back cover and coiled cable. Connect
to the hub and watch for the firmware version number to appear.
