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Appendix C. Firmware Upgrade
The firmware in the 8406 hand controller and/or main control board can be upgraded by the customer.
Please check iOptron’s website, www.iOptron.com
, under Support Directory, for the most up to date
firmware.
To upgrade i8406 hand controller firmware:
(1) Download the newest version of the 8406 hand controller firmware (i8406.iop) from iOptron’s
website, save it on your desktop;
(2) Connect 8406 hand controller to your computer’s USB port using included USB cable;
(3) Turn on the mount;
(4) Press MENU and select “Set Up Controller,” scroll down to “Upgrade Firmware.” A new
storage drive with a drive number, e.g. “IOPTRON(E:)”, will be shown under “My Computer.” If it
is the first time you have connected the hand controller to the computer, it may take few minutes
to install the driver.
(5) Copy the downloaded firmware, i8406.iop, into “sys” folder under IOPTRON(E:) drive to replace
the original one;
(6) Restart iEQ75-GT mount to finish the hand controller firmware upgrade.
To upgrade iEQ75-GT main control board firmware:
(1) Download iOptron Downloader Setup from iOptron’s website and save it on your desktop;
(2) Double click on iOptron Downloader Setup to install it;
(3) Download the newest version of iEQ75-GT main control board firmware (iEQ75-
GT_main_VX.XX.bin) from iOptron website, save it on your desktop;
(4) Connect iEQ75-GT RS232 port to your computer’s serial port using supplied RS-232 cable. A
USB to COM adapter is needed if you computer does not have a serial port, like most of the
laptops today;
(5) Turn on the mount;
(6) Find your COM port number by click on windows start, select Properties on My Computer,
click on Hardware and select Device Manager, double click on “Ports (COM & LPT).” In most
cases, it will be COM1. (If you are using a USB to RS-232 converting cable, the COM port
number will be different.)
(7) Double click on “iOptron Download” icon to start the program;
(8) Select the Serial Port, here is COM1. Open the data file, here is iEQ75-GT_main_VX.XX.bin.
Click on Start Download. After the program prompts that “Download successfully finished,”
restart the mount to finish main control board firmware upgrade.
Note: Only use the iEQ75-GT bin file. Sending a wrong file into the main control board will cause the
mount stop working.