A friend of mine had some Bitcoin on his phone a couple of years ago and he's lost that phone which stored the private keys on without any other backup. We can see his balance on the blockchain and he knows his password for the private keys. Is there a way of creating the private key from the bitcoin address and the known password?
Chances to you to restore the lost key is reduced to zero. This is the most important rule when storing bitcoins to keep in a good and safe place all your key files. You will only probably a quantum computer that will be able to pick up the key. I repeat quantum computer, and where to get it?