Toshiba TDP-ST20E Service Manual page 37

Chapter 4
Click Browse button to select the firmware (*. img file)
Press and hold the projector's [Service] two keys. (TDP-ST20)
Press and hold the projector's [Keystone] and [Auto set] keys. (TDP-EX20/EW25)
Then plug in the power cord and turn on power switch.
When the projector enters the firmware upgrade mode,
[LAMP], [ON/Standby] and [TEMP] LED blinks RED in order.
Click Start Download button.
Click Yes button.
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