Optoma EP720 Family Service Manual page 50

9. Proceeding Picture.
10. When firmware upgrade process is
finished, the unit return to stand-by status.
The LED power lights on and appears blue.
- Unplug USB cable and power cord and
replug in power cable.
11. Restart the unit and get into the Service
mode to check the firmware version.
(To get into Service Mode, please refer to
Chapter 4 Function Test and Alignment
Procedure.)
EP720 Family/EP726 Family
Confidential
5-