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Hi @darthvetal, sorry to hear about your troubles in calibrating with the 4C.
Are you aware that from within the Tobii System Tray Icon, you can click on your profile name to bring up the profiles menu and click “Improve calibration”.
This is recommended if you use the tracker in different lighting environments, also If you wear glasses or lenses sometimes, it’s recommended to make two separate profiles.
Please do try this and and let us know how you get on. I am afraid beyond this feature, there is no further software fixes for low calibration accuracy. Beyond that, you need to look at lighting conditions in your local environment… please ensure there are no strong sources of IR light in the room such as a spotlight or open window to the side or behind the eye tracker. How is the accuracy of the device for other users? have you tested?