For iPhones read about a company I noted at https://www.cnet.com/forums/discussions/apple-iphone-data-recovery-extreme-conditions/
For Android phones, head to XDA forums.
Since Android phones start at under 30 bucks, I take it that you are distraught and didn't know how cheap they are. Is it worth 30 or so bucks?
I am sharing this photo looking for help. I am trying to unlock my dead brothers phone. I got as far as this step. (See picture in link). My question is can I verify without another android phone? I have a google account.