Not exactly sure if this is correct forum to post in but I'm going ahead anyway... I just unboxed a samsung smart tv 5 series 5500 it seems a but sluggish this tv is a couple years old just hasn't been turned on until today. I updated it to the "latest" firmware 2170 I just want to make sure I can't manually update this to any newer firmware. Also my dad's smart tv looms very different then mine. Also are there any nodding options arable for my tv any help will be appcaited thanks