button on the TV/remote, plug the TV back in until the "Upgrading" screen appears.
(Russian technician site, very comprehensive but requires a quiz to join). (Polish forum with many TCL/Thomson firmware dumps). BadCaps Forums (English-speaking community for TV repair). 4. Installation Steps (General "USB Method")
Install.img , update.pkg , or a dedicated firmware binary renamed according to factory recovery guidelines (e.g., specific Mstar upgrade names).
Here are a few more tips that can help you navigate the update process and solve common problems:
