Optoma HD83 Service Manual page 59

5. "FlashBoot .hex programming completed",at this
moment,please enter FW upgrade mode.
6. When "FlasherBoot.hex" downloads completely,
"Downloading Appcode.hex" will running automatically.
7. When message "Flash Completed" appears, click
"OK".
8. Press "Power off ", "Left", "Left" and "Up" button of
remote to get into service mode to check firmware
version.
HD83 Confidential
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