Optoma EX774 Serivce Manual page 45

Rev. 00
JPEG color selection
Step 5: Press "Start" button to start flash the firmware into projector, the warning message box will appear to get
your confirmation. Press <OK> to continue.
Step 6: The last warning message box appears, this is the last chance to cancel the update, press "OK" button to
start the logo change.
Caution:
DO NOT install any USB driver when erasing or upgrading process started.
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2008/07/02