P45-53v3.1 Software

Press Menu + 1147 or Source + 2580 on the remote. Common Troubleshooting

While the TV firmware is the most likely match for the exact string, the components "P45," "P53," and "v3.1" appear in other technical contexts: P45-53v3.1 Software

“Version 3.2,” he said quietly, “is going to need a new name.” Press Menu + 1147 or Source + 2580 on the remote