the only thing i can add to this there is a setting on the pinball 2k that lets you disable or enable the update (when it is enabled you will see a message on the screen on boot up saying running code up dates or something like that).
make sure that this setting is disabled then reboot your pin 2k.

of course re enable it after your done

also make sure you choose to up date both game and sound at the same time.

OK done that now Beaky and it won't update either way... Luckily enough it will revert back to 1.30 when I enable update again