Some TVs can be diagnosed with built-in tools, but the video’s USB-to-phone app repair process is not an established or official method.
Claim-by-claim breakdown
Accurate (75% confidence): A broken TV is often repairable and should not be thrown away immediately. TVs commonly have repairable issues such as software glitches, power problems, or settings errors, though some failures are too expensive to fix.
False (88% confidence): You can diagnose a TV by connecting it to a phone with a USB cable, opening a website, downloading an app, and entering the TV brand, model, and size. Samsung and LG document self-diagnosis features built into the TV menus. They do not describe a general method of plugging a TV into a phone via USB to run a browser-based repair app.
False (84% confidence): The app can repair the TV after it finishes diagnosing the problem. Official TV support pages describe diagnosis tools and troubleshooting steps like picture tests, software updates, resets, or contacting support; they do not show a generic app that repairs the TV for you.
Accurate (96% confidence): Samsung TVs have built-in self-diagnosis or device-care tools. Samsung’s support pages explain that users can run Self Diagnosis/Device Care from the TV’s settings menu.