He's looking for something remote or in Honolulu because that's where his family is.
Has anyone done this or helped anyone go through this? Do I help him just get good at coding interviews or help him create some Android apps?
Anyways, I would say "Don't quit your day job" and get working on a side hustle in software dev, if they like android dev then they should start there. Find a niche that they can offer a service or product and promote the hell out if it.
I still find it incredible that someone working as an electrician in Hawaii would want to change careers. I guess it's true that "You don't know what You have until it's gone and the grass is always greener"