Optoma EP721 Family Service Manual page 47

5. Select "Edit\preferences\Communications"
- Choose "USB" and Click "OK".
Choose "Flash Loader".
6.
- Click "Browse" to search the firmware file.
7. Click "Reset Bus" to erase the flash
memory.
Note: If the error message "cannot open USB
driver - No projectors found" appears,
please unplug the USB Cable and replug,
then check Driver. Finally,Repeat procedure
7. Click "Reset Bus" to erase the flash
memory.
8. If the firmware is ready, click "start
download" to process the firmware
upgrade.
- Click "Yes" to erase the flash memory.
EP721/727/723/728 Family / EW1610 Family
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