@arkitect have you watched
this video? It's from a Sony photographer, and he walks you through the process really clearly. He notes that there are several times along his path when he had to redo things, start over, etc. The process involves several times when it asks for security permission, or sometimes it doesn't and sometimes it asks twice. You need to have multiple installer package windows open plus other "helpers." And it appears that at any point in the process you simply need to restart your Mac and redo everything.
It looks insane and awful. I'm so sorry you're going through this. I can understand why you're pulling your hair out!
The Sony software looks terrible. And there's even a couple warning windows that pop up and need to be clicked, but the warning (
on software downloaded from the U.S. Sony site) is all in Japanese. So despite the FUD being spread around this thread, it is clearly Sony's updating software that is bad, and not Apple.
The directions for Mac and PC users both, based on Sony's site, are far more complex and arcane than they need to be. I used to own a Sony and got rid of it recently, partly because the camera software (menus, etc.) is the opposite of user friendly. If the same teams are designing the firmware updater, I can see why engineers are the only ones who can do it.
I use Canons, and I have some Sigma lenses. Products from both manufacturers require firmware updates, and both are easy and fast. Both work seamlessly with my OS.
I hope the linked video helps. Good luck.
