ViewSonic VS18991 User Manual page 72

2. Select Enter by pressing OK on the remote control.
3. The system will check the ViewSonic website (OTA) and display the below dialog
message if there is new Firmware.
4. After selecting Yes, a progress bar will appear as the update process begins.
5. After reaching 100% the projector will restart and the screen will turn to black for
a few minutes. The whole process will take about 10 minutes.
6. After updating the Firmware, it will take a few minutes to restart the projector.
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