However, for the average owner, this is a path fraught with peril. Unless the TV is already out of warranty and considered a "loss" otherwise, downloading and flashing repacked firmware is generally discouraged. The line between a better-performing TV and an expensive paperweight is razor-thin in the world of firmware modification.
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Example: replace boot logo (usually a .raw or .bmp at known offset). However, for the average owner, this is a