Samsung PN51D490A1DXZA E-Manual page 159

Standby Mode Upgrade
for PDP 550 Series and above
You can set the Standby Mode Upgrade function so that the TV downloads
new upgrade software when it is in Standby mode. In Standby mode, the TV
is off, but its Internet connection is active. This allows the TV to download
upgrade software automatically, when you are not using it. Because the TV
is turned on internally, the screen may glow slightly. This phenomenon may
continue for more than 1 hour until the software download is complete.
To set Upgrade, follow these steps:
Standby Mode
◀ ▶
1. Press the arrow buttons to select Upgrade in Standby Mode, and then
press the ENTERE button.
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