Here's where you've made basically all of the errors. (To be fair, many people make this error.)

It might tell you everything.

You might ask--what is life? Sure you could reveal how various flows of energy cause various different molecular translations. But what could they actually tell you about the vitality of life?!

Well. Everything. They could tell you how oxidative and non-oxidative respiration generate ATP, NADH, and other high-energy molecules. They could tell you how DNA polymerase duplicates DNA molecules. They could tell you how cell cycle checkpoint control regulates duplication of cells. It's all there. Life is a mechanism. A gloriously complicated mechanism that we were incredibly far from conceiving of--we needed decades of groundbreaking research.

And you put it all together and--yes: life is explained.

So how sure are we that there isn't an equivalent mechanism for sentience? That if we understand all the pieces and mechanisms, we understand that yes of course this is adequate to explain the phenomenon, just as much as the mechanism for life is enough to explain life?

Thus, there is no known hard problem of consciousness. Only the hard problem of human arrogance in conflating our own limited view of reality with what could possibly be.