LOL I wouldn't trust anyone to provide a new firmware for any miner that says you'll make more.
You're not gonna make more - just they're gonna get money from you via fees or hacks in the miner.

Of course they also don't provide source code ... so you don't see the hacks that steal from you
... and they of course are breaking the license terms for not providing the source code.

If you do use it - mine somewhere else with it - I don't want to be dealing with people complaining about lost shares and problems here due to hacked miners
... or the pool losing blocks due to the hacks.