CEM40/GEM45 Firmware

Firmware for CEM40 and GEM45 Mount (10/16/2021)

Please read the Release Notes before performing any firmware upgrades. Loading the wrong file into the mainboard may cause the system to become inoperable!

Please set the mount to zero position by using Set Zero Position after firmware upgrade.
CEM40EC and GEM45EC version needs to perform encoder calibration after the firmware upgrade.

This version needs iOptron ASCOM Driver and Commander 6.4 and later for computer control
In Sky Safari, INDI driver or X2 plug-in, please select CEM120/CEM70 mount for this new firmware.


CEM40/GEM45 Firmware Upgrade History
CEM40/GEM45 firmware upgrade instruction
FTDI VCP Driver for Win7/8.1/10, FTDI VCP Driver for Win11, or go to FTDI Chip website to download the VCP driver
iOptron Upgrade Utility (V2.23, released 11/1/2021)

If you have a CEM40/GEM45 mount with a 8407 hand controller, you'll need to upgrade the mount firmware and hand controller firmware separately, as described in the Upgrade Instruction.
CEM40/GEM45 Firmware Package (including 8410 hand controller) (V210605)
Go2Nova 8407 hand controller firmware (V20210420)

If you have a CEM40/GEM45 mount with a 8410 hand controller, you'll only need this firmware package. The HC firmware will be upgraded via the mount connection.
CEM40/GEM45 Firmware Package (including 8410 hand controller) (V210605)


The firmware version that works with Commander 5.7.X.X listed here
iOptron Upgrade Utility (needed for reload old firmware)
Go2Nova 8407 hand controller firmware (V200113)
CEM40/GEM45 Firmware Package (V200122)