Optoma EP774 Service Manual page 30

Program> Digital Zoom Projector> projector flashtool version 5> Launch FlasToolBL.exe
Company Confidential
The install program copy the new INF into Windows
directory, it will search the old INF and replace it with the
newer one.
Remove the USB cable between PC and projector if it is
connected.
The WinDrive USB drivers will be installed and
registered to system.
After the driver install, a test application will start
automatically with Windows hardware wizard for all
necessary USB driver.
The driver test launched, wait for the key stroke to enter Projector
Control mode...
Connect the USB cable now!
If the driver test application does not launch automatically, run the
"Launch FlashToolBL.exe" from installed short cut at
Optoma_______________________
30
Rev. 01
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2007/06/13