Unlocking will resolve the issue by definitely destroying all your data forever since it is designed to be a destructive process. You cannot save your data from

Unlocking will resolve the issue by definitely destroying all your data forever since it is designed to be a destructive process. You cannot save your data from a locked and encrypted phone after it is broken in a way that prevents it from booting. You have to unlock and unencrypt it, replace the recovery and enable USB debugging as soon as you get it for maximum recoverability. This approach has significant disadvantages for privacy though.