After Initial Setup I started a software update, but it does not seem to end.
The software update will take about 15 to 30 minutes.
Please wait patiently for as long as there is a spinning arrow displayed on the screen.
If there is no spinning arrow on the screen, press the BACK button on the remote control to return to the previous screen, where you can select Update later to start using the TV.
In this case, the next time that you turn on the TV the software update screen will be displayed, and you can perform the update.