LG HX300G Service Manual page 58

Main S/W Download Method
Create LG_DTV folder in the highest USB directory, and paste Xxx_flash.epk' -> It may be different for each version.
Connect USB with software file copied to TV USB connector, and PJTR software upgrade verification window is automatically
displayed.
When Start button is pressed, download starts. If you want to cancel, press BACK button.
PJTR software upgrade
Do not pull the plug during the upgrade. When the upgrade
is over, power of PJTR is automatically turned off.
(duration : 3 ~ 4 min.)
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