Usually not. The bootloader checks version numbers and refuses older firmware. You would need a special “force downgrade” file from a service center.
You might not see the "Vestel" name on many store shelves, but this Turkish tech giant is the "silent manufacturer" behind dozens of famous household brands. Because they use a unified chassis architecture (like the popular MB110, MB130, or MB211), firmware updates are the primary way these TVs receive new life. A USB firmware update isn't just a patch; it is often a "core" reinstall that can resurrect a "bricked" TV from a boot loop. Why USB? The "Offline" Advantage
Happy updating – and remember: if it ain’t broke, don’t fix it!