Optoma EP7155i Service Manual page 47

Delta Elec. Inc.
Note:
In case that you has USB enumeration problem (i.e., the USB port cannot recognize
your projector), please clear all USB items in the windows registry, and re-install the
Flash-Tool USB driver. See Appendix-A for further details.
The projector is now in the Flash-Tool mode after the click.
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EP7155i & EP1691i
Windows completes the new hardware wizard.
Press the " Finish " button to exit.
Once when the Projector Control USB driver is
enumerated, the projector information is displayed in
the status window.
Click on the " Check " button to place the projector
in the Flash-Tool mode.
The purpose of this function is to verify whether or not
the project is successfully in the Flash-Tool mode.
Optoma_______________________ Delta____________
2010/01/11