What should I do if troubleshooting steps don't resolve the black screen issue?

Try performing a soft reset by unplugging the TV from the power outlet, waiting at least 60 seconds, and then plugging it back in. If the problem persists after this and other troubleshooting steps, perform a factory reset by navigating to Settings > General > Reset, entering the PIN (default 0000), and following the on-screen instructions. [Page 1]