Better - Cvtemsd338512m Smart Tv Update Upd

Keep holding the button until you see a blue/amber blinking light or an "Upgrading Software... Do Not Power Off" screen appear on the display.

This happens when the firmware is meant for a different LCD panel version. You will need to access the TV's service menu (often accessed by pressing Source/Input + 2580 or Menu + 1147 on the remote) to adjust the "Panel Flip" or "LVDS Map" settings. cvtemsd338512m smart tv update upd better