Optoma EP739 Service Manual page 48

7. If the firmware is ready, then click "Start Download" to process the firmware
upgrade.
8. Click "Yes" to erase the flash memory.
9. After file was download. Please to restart the unit and enter the service mode
to check the F/W version.
Note :Press the "Power" and "Left" and "Left" and "Menu" button to enter Service Mode.
Note
5-11
EP739/EP739H/EP738
Series