Samsung 4+ Série Mode D'emploi page 191

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Update now
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By USB: Insert a USB drive containing the firmware upgrade file,
downloaded from "www.samsung.com" into the TV.
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By Channel: Upgrade the software using the broadcasting signal.
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N
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Auto update: A manual upgrade will be automatically performed at selected
time. Since the power of the unit is turned on internally, the screen may be
turned on slightly for the product. This phenomenon may continue for more
than 1 hour until the software upgrade is complete.
Please be careful not to disconnect the power or remove the USB
drive until upgrades are complete. The TV will be turned off and on
automatically after completing the firmware upgrade.
If the function is selected during the software transmission period,
software will be automatically searched and downloaded.
The time required to download the software is determined by the
signal status.
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