Reference Guide
Page 45
...TV cannot be used to control the playback equipment even when the system's HDMI pass-through is used Head mounted unit buttons are unresponsive "DEMO" appears in the upper-right corner of the setting menu screen Cannot adjust "Language setting" because the setting menu is in an unfamiliar ... the controlling device. Buttons on the head mounted unit do not function unless you are wearing it. Contact your Sony dealer or local authorized Sony service center. If initial setup is not finished, press the button repeatedly to return to the language selection screen,...
...TV cannot be used to control the playback equipment even when the system's HDMI pass-through is used Head mounted unit buttons are unresponsive "DEMO" appears in the upper-right corner of the setting menu screen Cannot adjust "Language setting" because the setting menu is in an unfamiliar ... the controlling device. Buttons on the head mounted unit do not function unless you are wearing it. Contact your Sony dealer or local authorized Sony service center. If initial setup is not finished, press the button repeatedly to return to the language selection screen,...