Official Samsung support states that it is not possible to downgrade
: Performing a factory reset resets user settings and data but revert the firmware to an older version. Knox Security Samsung Tv Downgrade
Try the alternatives first. A factory reset fixes 70% of "bad update" issues. An external streaming stick fixes 99% of software complaints. Disabling auto-updates prevents future pain. Official Samsung support states that it is not
consistently states there is no authorized method for consumers to revert a TV update. Known Issues Driving Downgrade Requests A factory reset fixes 70% of "bad update" issues
Officially, . Samsung intentionally prevents this for security reasons and to ensure the TV operates with the latest application support and bug fixes. Key Facts About Samsung TV Downgrades
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