Daewoo LCD TV - Decoder Firmware Update Process

How to S/W Upgrade Tools
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3) How to upgrade decoder of LCD TV.
3.1 Execute S/W upgrade tool, which is DTV_Updater.exe.
3.2 Select [Setting] -> [Target] -> [Decoder] in the menu.
3.3 Select available serial port in [Setting] -> [Port].(Default port is COM1.)