DVD Nav 8.1 hack on 2009 prius?

[doctorman]

Originally Posted by LeviSmith

Pretty sure it does.
I have yet to get a "fully reliable" copy working, but I have a 8.1 disc with an 05' kwi in my gen 4 2004 Prius. Searching for POI hardly ever works and searching by address is slightly finicky at times but the maps and override are working... I've tried Ritek and Verbatim (Both DVD+R DL's) on 2 different burners multiple times. Both brands reliably work from one burner and NOT from the other. That reader in the Prius is definitely picky...

Levi

with version 9.1 tha patch acts up a lot
wasnt worth the override
tried it in 2005 prius

gen 4 navigation sysytems are very good with copied dvds

gen 2/3 sucks specially in 200-2003 cars
gen 5 has problem with some cars only , prius is one of them

[Cyndrax]

Originally Posted by LeviSmith

I think I just happened to stumble on the thread at some point, not exactly sure where now...
You should be able to take your 05' disc and place it in a DVD reader and copy the loading.kwi to your computer.

Then you need to make an iso of your new disc and the tricky part is finding software that will let you edit that iso. I *think* it was UltraISO that I ended up using. Then you just delete the version of loading.kwi from your new disc and copy in the 2005 version.

Then the REALLY hard part is getting a reliable copy burnt to a new disc...

Levi, let me make sure I understand the plan here.

1. Get the new 9.1 disk for the '05 Prius
2. Make an ISO of the 9.1 disk
3. Take my original disk from my '05 Prius
4. Copy the loading.kwi file off of my original disk
5. Use UltraISO to replace the loading.kwi in the 9.1 ISO with the loading.kwi that I copied off my original disk
6. Burn that updated ISO and put it in the car
7. Enjoy the 9.1 map data with the old override trick

Am I missing anything besides potential burning issues here?

As a general question. If the burn of the hybrid old/new disk doesn't work, I just put my original disk back in, correct? Also, if I put in the unaltered 9.1 disk, I lose my override sequence. If I put my original disk in, do I get the override sequence back?

Thanks!

Brian

[LeviSmith]

Originally Posted by Cyndrax

Levi, let me make sure I understand the plan here.

1. Get the new 9.1 disk for the '05 Prius
2. Make an ISO of the 9.1 disk
3. Take my original disk from my '05 Prius
4. Copy the loading.kwi file off of my original disk
5. Use UltraISO to replace the loading.kwi in the 9.1 ISO with the loading.kwi that I copied off my original disk
6. Burn that updated ISO and put it in the car
7. Enjoy the 9.1 map data with the old override trick

Am I missing anything besides potential burning issues here?

As a general question. If the burn of the hybrid old/new disk doesn't work, I just put my original disk back in, correct? Also, if I put in the unaltered 9.1 disk, I lose my override sequence. If I put my original disk in, do I get the override sequence back?

Thanks!

Brian

As far as I know that's it. But apparently there are comments that 9.1 might not work as well as earlier versions...

Old disc going back in after trying a failed hybrid will keep you just as you were.

The answer I see most often is that once a 2006 or newer disc goes in your override is lost forever. However, I *thought* I saw a post somewhere about opening the Nav unit itself and finding a reset switch to allow you to go back to the 05' disc... But I'd call that iffy at best...

Levi

[doctorman]

Originally Posted by LeviSmith

However, I *thought* I saw a post somewhere about opening the Nav unit itself and finding a reset switch to allow you to go back to the 05' disc... But I'd call that iffy at best...

Levi

if you find that post again can you please post it here
that might help.

[LeviSmith]

Originally Posted by doctorman

if you find that post again can you please post it here
that might help.

It took some looking and the pictures don't seem to be there anymore, but here it is:
Navigation ECU disassembly