Nav In-Motion Disable Completed, Patch Available!

[titan]

Oh I know, I am just being cautious and leaving myself the ability to revert back to stock software with the correct version and I don't think it is terribly difficult.  I almost want to wait and not waste a DVD+R until they have gotten rid of the splash screen now

[milous]

Will this work on the REC unit in the Grand Cherokee?  I noticed it was mentioned Chrysler has various folders for different vehicles.

Please say YES! 

YES, absolutely. Just successfully burn a modifed AE disc and it works flawlessly in my '06 Jeep WK.

[shredder]

Will this work on the REC unit in the Grand Cherokee?  I noticed it was mentioned Chrysler has various folders for different vehicles.

Please say YES! 

YES, absolutely. Just successfully burn a modifed AE disc and it works flawlessly in my '06 Jeep WK.

That's great to know, thanks!  Which brand DVD and which app did you use to burn? 

[HaTaX]

Oh I know, I am just being cautious and leaving myself the ability to revert back to stock software with the correct version and I don't think it is terribly difficult.  I almost want to wait and not waste a DVD+R until they have gotten rid of the splash screen now

Just so you know, you'll have to have the AD version of the disc patched then.  Once you load an AE version, it will upgrade your firmware and you will no longer be able to use a disc below AE.  Doesn't matter if it has the in-motion hack or not, the software contained in AE will not downgrade to an earlier version from a pre-AE disc.

Thought I'd clear that up as I thought that may help the decision making process.   I personally would just tell the potential buyer that your old disc had gotten scratched or such and you had a backup copy of it just in case that happened...  There are lots of answers that keep you in the legal on said arrangement.

[milous]

That's great to know, thanks!  Which brand DVD and which app did you use to burn? 

I used a Verbatim +R DL disc. Ridata will also work. I used UltraISO for the burn, slowest burn speed.

[Heminit]

Well, not in the clear yet, but all looks well. 

I had to take a little back road to get there.  Started with an .iso image of the AE disk and used MagicISO to open and copy the files to a new directory.  From there I followed the instructions.

I don't have a dual layer capable burner, so I copied the modded files to a portable storage drive and will have a friend burn the DVD for me over the weekend.  Should know something by Monday. 

Any reason the little deture at the beginning (strating from an ISO file) would not produce results like everyone else?

[lsitter]

FYI - You can put the stock AE disc in and it will work just fine (still in-motion hacked functionality)...  I tried it in mine.  I'd be very impressed if the potential buyer would ever know the difference.

Dave

Really. Wow! That is huge! I can upgrade my sister's AE then without burning her another disk. Just take my hacked AE disk and temporarily install in her car and then put her new AE disk back in and she is good to go. Am I understanding that right?

So.... I take it when the unit detects a newer disk it upgrades the firmware. Then from that point, whatever disk is in, it just uses the maps? Theoretically, could you upgrade with the 2.04.01 hack and then return to the AC or AD disk for your maps and such? Or, does that only apply to the AE?

[milous]

Effective with "AE" you cannot go back to prior versions, like "AC" or "AD". However, if your newest version installed is "AD" you can revert that back to "AC" with no problem.

[shredder]

That's great to know, thanks!  Which brand DVD and which app did you use to burn? 

I used a Verbatim +R DL disc. Ridata will also work. I used UltraISO for the burn, slowest burn speed.

I got it to work.  I burned an unmodded AE ISO and ran that after a modded DVD hung on the loading screen and the hack works.  Same DVD brand (verbatim) with the same app and settings.  You guys rock, I've only been waiting for this for a year and a half!

[titan]

Can someone confirm for me what version number 05046033AD was?  I am editing the file manually and need to make sure whatever sub-AE version number I use is still higher than AD.

[BrightonBob]

On the selling the car thing. If it is a year or so down the road, buy the latest version of the factory disk at a couple of hundred bucks and update and give the new owner a factory edition along with all it's pop-ups.

[TheJackal24]

Just so you know, you'll have to have the AD version of the disc patched then.  Once you load an AE version, it will upgrade your firmware and you will no longer be able to use a disc below AE.  Doesn't matter if it has the in-motion hack or not, the software contained in AE will not downgrade to an earlier version from a pre-AE disc.

You theoretically can revert back to any older version firmware. All you need to do is change the version # on an older disc to be higher than what you currently have and viola, back to the old stuff right? You of course would need to change checksums as well.
This would be something interesting to test, why would you want to revert anyways?

By the way, I'm currently on AC and about to update to AE. I will, however, increment over the AC, not move straight to 2.04. This will allow for plenty of testing ahead. I would suggest "updating" people do this instead of jumping to 2.04, if you want to play around a bit. By the way, what is the highest incremental value? 2.04.99 before you move up to 2.05 or what?

[HISSN]

Just so you know, you'll have to have the AD version of the disc patched then.  Once you load an AE version, it will upgrade your firmware and you will no longer be able to use a disc below AE.  Doesn't matter if it has the in-motion hack or not, the software contained in AE will not downgrade to an earlier version from a pre-AE disc.

By the way, I'm currently on AC and about to update to AE. I will, however, increment over the AC, not move straight to 2.04. This will allow for plenty of testing ahead. I would suggest "updating" people do this instead of jumping to 2.04, if you want to play around a bit. By the way, what is the highest incremental value? 2.04.99 before you move up to 2.05 or what?

I was curious about this, i just bought my wife a Grand cherokee, but it didn't have the dvd, so i don't know what version is loaded in it know.  I justed wanted to load the New AE disc first without the mod then proceed with the patch once that's done.  If my NAV is loaded with say AC, can i go directly to AE?  Also can someone Pm me a link to the ISO?  thanks ryan

[DeepSIX]

PMed

[Vindes]

You theoretically can revert back to any older version firmware. All you need to do is change the version # on an older disc to be higher than what you currently have and viola, back to the old stuff right? You of course would need to change checksums as well.

Not that it really matters, but just changing the version ID encoded in the file won't effect the checksums.  The version ID is in an area not covered by the checksums.

By the way, I'm currently on AC and about to update to AE. I will, however, increment over the AC, not move straight to 2.04. This will allow for plenty of testing ahead. I would suggest "updating" people do this instead of jumping to 2.04, if you want to play around a bit. By the way, what is the highest incremental value? 2.04.99 before you move up to 2.05 or what?

In theory it should go to 2.04.255, which it would probably display as 2.04.FF.  Each "element" is stored as a byte.

And adjusting the code so that it will "downgrade" appears to be pretty trivial.  I'm not worried about version numbers at this point because I'm 99% confident we could burn a disc as version 0.0.1 and get it to load if we wanted to.

One thing to be cautious about though...  The unit uses both the MAIN.APN file and the APL.APN file.  Those two must be in sync with each other.  If you tried to use the AD version of APL with the AE version of MAIN I think you'd run a very high risk of bricking the unit.  (The reason is all the memory addresses of the variables and functions change between versions.  But the MAIN and APL files share the same memory space and interrupt tables.  If they're not in sync they'll have different ideas of where variables and functions are stored.)

Personally, I wouldn't suggest messing too much with the version numbers.  If you want to keep it lower than the stock AE version I'd go to 2.03.00.  That should give you more update room then you'll ever use.  With the AC example, if you use a low number for MAIN (and don't adjust APL) when you upgrade to the hacked AE you should be fine at first.  But if somebody sticks an AD disc in your unit it'll think the AD MAIN is an update and load that, but I believe ignore the APL.  So you'll have an AD MAIN running with an AE APL and likely have yourself a big problem.

At least that's what I believe.  I've actually not looked for the part of the code that checks and updates the APL.  It's also possible that it will update the APL every time it updates MAIN, regardless of the version on it.  I'd rather keep the risk to a minimum myself, at least until we figure out how to force a re-load from DVD or a way to load over CAN or some other port on the unit.