SamyGO

I couldn't count them
Use FFB for sure, if it's bricked, than you could revive later.

Sure. If you have had an earlier firmware on your TV before, you can try activate firmware with this game.

But if you do not know what was firmware before, or you got no success by activating it, use FFBv0.3.2, especially you do not know linux. Instruction here.

Just activation of alternative firmware is relative safe, but here were situations when alternative firmware was not activated by this game. I can`t remember any brick using Activation tool.
http://forum.samygo.tv/viewtopic.php?f= ... 7466#p7343

You can use `activate firmware` It doesn't have much risk on it. (There is also a risk even if you watching TV). But I can say it's safe to use.

But FFB is too risky to use "for you". Some users has problems with it and bricked their TVs.
That doesn't mean you will faced with bricked TV but might be.
So don't try FFB if you have doubts on your mind...

Second recommendation is use FFB to revert your firmware back.
If you don't take any risk, you go nowhere
I heard that It's hard to brick TV with the latest FFB version.
juuso just adds some security checks into it after one bricked TV
Do you scared?

latest is 0.4