CEM120 Firmware

Firmware for CEM120, CEM120EC and CEM120EC2 Mount (Updated on 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.

CEM120EC and CEM120EC2 version needs to perform encoder calibration after the firmware upgrade.

CEM120 Firmware Upgrade History
CEM120 firmware upgrade instruction
iOptron Upgrade Utility 2.23 (latest version)

If you have a CEM120 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.
CEM120 Firmware Package (include 8410 hand controller) (V210605)
Go2Nova 8407 hand controller firmware (V20210420)

If you have a CEM120 mount with a 8410 hand controller, you'll only need this firmware package. The HC firmware will be upgraded via the mount connection.
CEM120 Firmware Package (include 8410 hand controller) (V210605)

Archived Firmware