Firmware Version Check - Optoma EH1020 Service Manual

7. Choose the file "pwusbio.sys" and open it.
8. Click "Finish".

5-1-4 Firmware Version Check

1. After firmware flash,Press "Power", "Left", "Left"
and "Menu" button to get into service mode to
check firmware version.
EH1020
Confidential
5-4