CEM40/GEM45 Firmware

Firmware for CEM40 and GEM45 Mount (March 27,2020)

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.


CEM40/GEM45 firmware upgrade instruction
iOptron Upgrade Utility
Go2Nova 8407 hand controller firmware (V20200113)
CEM40/GEM45 Firmware Package (V191018)
FTDI VCP Driver, or go to FTDI Chip website to download the VCP driver
CEM40/GEM45 Firmware Upgrade History