With GS=0 it should not be booting into maintenance mode still.

So I don't know why it is still doing it.

Just for fun try using the same part of TWP to set PAL guided setup mode, then reboot and confirm you have the same startup screen. then reset to PAL and reboot.

Maybe one of the NZ'ers on here can also confirm the latest NZ image does have 2 different startup screens.

Peter.