Toshiba TLP-X2000B Service Manual page 37

Chapter 4
Press and hold the projector' s [Input] and [Keystone] keys, and then plug in the power cord.
The projector starts the Firmware upgrade,
[LAMP], [ON/Standby] and [TEMP] LED' s are RED blinking.
The computer begins downloading the upgrade files to the projector.
The process may take several minutes.
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