Epson Pro L1490U Use and care manual

Firmware Update Procedure via USB Flash Drive
On Pro G7/Pro L Series
Copy the BIN firmware file to the root of the USB Flash drive. Make sure there
are no other files on the Flash drive.
Installing the USB Flash Drive
1. Turn off the projector and unplug the power cord.
2. Slide the air filter cover latch and open the air filter cover.
Remove the screw securing the wireless LAN module stopper, then remove the stopper.

Insert the USB Flash Drive into the port
After inserting the Flash drive, press and hold the projectors Power button for 5
seconds while connecting the power cable to the projector.
Four of the projector LED indicators will light up together. The projector fans
will accelerate and the LED indicators will start to blink after 1 minute. The
process takes about 3 minutes.
When the process is finished the projector will automatically shut down to
Standby mode.