Frozen TV

Bumping this. I am having all kinds of issues with 06.00.05 on my 55UJ7700-UA. The menus often freeze or don’t work at all. The input selection almost never works without restarting the TV, which takes a solid minute now. I looked at the suggested downgrade firmware linked above but my TV model isn’t listed, so I’m weary to try it. Any other suggestions for fixing this issue?