Samsung intentionally restricts firmware downgrades for several reasons:
Samsung devices often use a "binary number" system. You cannot downgrade to a firmware version with a lower binary number than the one currently installed. Effective Alternatives to a Downgrade Samsung Tv Downgrade
Samsung TV Downgrade: Is it Possible and How to Fix Update Issues? Samsung Tv Downgrade
Attempting to force an older version through unofficial tools can cause "non-resolvable malfunctions" or "bricking," where the TV becomes completely unusable. Samsung Tv Downgrade
