Ask HN: iPhone 6 Data Recovery?

I'm getting ready to clear out some old devices. I found one of my wife's old phones that was water damaged (iPhone 6). I tried some of the stuff that I've seen online about gently scrubing the logic board in anhydrous alcohol and stuff like that. But I haven't been able to get it to boot or do anything.

Is there a more advanced way to get to the data, like desoldering the storage chip and swapping it onto a USB? I'm guessing not, but thought I'd ask.