You'll need to use the AU Sensis logo.bin to enable TTS of course, but you can put any suitable image into it. Replacing the .bmp file/s in a logo bin is easy thanks to turboccc and his GIR_editor. Go here: [Only registered and activated users can see links. ]. The tut is for 37x0 but the principle's the same. There's another interesting thread here: [Only registered and activated users can see links. ].
Models later than 1xxx can use 'if_ error' command in that case, or as you said just run separate commands [see p#71 here: [Only registered and activated users can see links. ] about using 'if_error']. So yes, without saving the region16 it may continue to overwrite it, i.e. xrgn may succeed where rrgn returns an error. There's no risk in this case because the original 7x0 logo is freely available anyway: [Only registered and activated users can see links. ]. Certainly if the logo is a 'rare' one [like from an Asian unit], you'd be careful to get a good backup before proceeding separately with the overwrite.Also having the following in updater is dangerous, better to have two files: first backup, then replace.
rrgn,41,1:/41_backup.bin
rrgn,16,1:/16_backup.bin <-- what if this failed, then it will continue to replace without the backup?
xrgn,16,1:/16.bin
reboot
Bookmarks