: Installing the wrong firmware (e.g., a version meant for a different panel resolution) can cause a "black screen" or inverted colors. Always verify your panel model before flashing.
: While older board-level firmware is rarely on consumer sites, you can check for general product manuals or support contact info at the Thomson Manuals and Software page. Installation Guide Download VST59S PB802 THOMSON TDLE HS40T62 rar
Plug the TV back in. If it has a physical power button, hold it while plugging it in. : Installing the wrong firmware (e