PIMAX CRYSTAL Not Working

Powered USB 3.0 Hub (Active)

The Pimax Crystal's eye-tracking module is a Tobii-based USB device that is highly sensitive to voltage sag. A powered hub provides the necessary amperage to ensure the eye-tracking cameras can initialize and maintain a data link independently of the PC's motherboard power limits.

Pimax Crystal Fiber Optic Cable (6m)

Signal degradation over the standard copper tether often causes auxiliary data streams, such as the eye-tracking HID signal, to fail while the primary video feed remains active. The fiber optic version mitigates electromagnetic interference and signal attenuation that prevents the eye-tracking data packets from reaching the Pimax Play software.

Tobii Eye-Tracking Replacement Module

If power and cabling are verified, the root cause is typically a mechanical failure of the internal IR camera array or the ribbon cable connector inside the HMD. This assembly replaces the physical sensors and the processing board responsible for mapping the user's pupil movement.