uConnect 15.26.1 is buggy; I want to downgrade. - Page 2 - Jeep Garage - Jeep Forum

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  #13  
Old 07-27-2015, 01:38 PM
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Re: uConnect 15.26.1 is buggy; I want to downgrade.

I chose to just pass on the update. my stuff worked fine. If someones gonna hack me, so be it (but not gonna happen). they released it very quick after the hack went viral. Im not interested in a quick fix from them. I knew it would be a buggy mess. Maybe in a few mos.....

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  #14  
Old 07-27-2015, 02:02 PM
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Re: uConnect 15.26.1 is buggy; I want to downgrade.

Just had my dealer update mine. So far no problems. I would have attempted to do it myself, however, I figured I would let them be responsible if anything went buggy.
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  #15  
Old 07-27-2015, 03:10 PM
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Re: uConnect 15.26.1 is buggy; I want to downgrade.

Quote:
Originally Posted by jeepgrady View Post
Just had my dealer update mine. So far no problems. I would have attempted to do it myself, however, I figured I would let them be responsible if anything went buggy.
FCA supposedly first heard about the hack in October of 2014, so I don't think it was a quick fix.
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  #16  
Old 07-27-2015, 03:49 PM
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Re: uConnect 15.26.1 is buggy; I want to downgrade.

I did it on Friday. I have noticed it is a little buggy now whereas before all was fine. You can verify if you need it or not here with your VIN# and then download. They also provide installation instructions once downloaded and placed on a blank USB drive.

Uconnect® Software Update - Update your Uconnect® System
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  #17  
Old 07-27-2015, 09:26 PM
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Quote:
Originally Posted by Roadkill View Post
Due to the remote exploit vulnerability I have upgraded to uConnect 15.26.1 on my 2014. However, in the two days it's been applied I have already had to restart the Jeep multiple times to regain functionality that used to work flawlessly.

For example: intermittently, climate control fan speed will not work (the fans stay off even though the screen indicates they are on level 1–7). Have to restart the Jeep to get the fans to work again. Also, the backup camera now intermittently displays no video and the path overlay jitters. Have to restart the Jeep to get the backup camera working again.

I imagine there are more intermittent loss of functionality issues I have yet to uncover. This is pathetic.

Does anyone have the service manual for a 2014/2015 who can tell me if there is a separate antenna for the cellular datalink? I want to disable the cellular datalink antenna (leaving FM/SXM radio and GPS reception intact) and then downgrade to the previous version of uConnect that worked fine.

As it stands, the current version of uConnect seems to have built-in simulated hacker interference in terms of having my Jeep randomly lose functionality. Maybe it's so I don't feel left out compared to all those unpatched Jeeps getting exploited by actual hackers.
Downloaded and installed mine a couple of days ago, no issues. I'd reinstall if I were you.
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  #18  
Old 07-27-2015, 10:01 PM
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Quote:
Originally Posted by alludc View Post
I chose to just pass on the update. my stuff worked fine. If someones gonna hack me, so be it (but not gonna happen). they released it very quick after the hack went viral. Im not interested in a quick fix from them. I knew it would be a buggy mess. Maybe in a few mos.....
Heh. Well, at least we have a known good firmware revision (i.e. the previous release).

I may downgrade regardless, but I'm definitely out for blood when it comes to this datalink antenna. It needs to die. I'm not against applying wire cutters for a permanent "fix", if that's what it takes to render it inoperable.

Just need to figure out what's involved getting back there and what to disconnect/sever.
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  #19  
Old 07-28-2015, 02:34 AM
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Re: uConnect 15.26.1 is buggy; I want to downgrade.

Quote:
Originally Posted by Roadkill View Post

Does anyone have the service manual for a 2014/2015 who can tell me if there is a separate antenna for the cellular datalink? I want to disable the cellular datalink antenna (leaving FM/SXM radio and GPS reception intact) and then downgrade to the previous version of uConnect that worked fine.

Greetings

I've been lurking around for a long time but never really had something I thought significant to share until now. I think I can help…

I never activated even the trial "Access" because, after reading the privacy policy, i disagreed with feeding operational data from my vehicle to who-knows-where-and-why. The proof-of-concept exploit didn't really scare me but after reading quotes from FCA claiming they know everything about how all their products are being used, it's pretty clear that they don't need anyone to agree with their policies to siphon data so it's time to AirGap the Rat.

Yes, the CDMA radio has a unique antenna. And it can be disconnected without compromising the satellite and terrestrial entertainment radios. That's good news.

Satellite-delivered services, like TravelLink, are not affected if the CDMA radio is disconnected. More good news.

Not-so-good news: That radio knows when it doesn't have an antenna and posts a nag screen to have the "vehicle phone serviced". Although the screen can be dismissed or will time-out after a few seconds, it's still a nuisance and will occur each time Uconnect initializes. The "no service" indicator on the rearview mirror is also lit.

Next step is to see if there's DC power on that port to help to decide if I can terminate the antenna port with a dummy load to appease the radio, so I'll be shopping for connectors for a little while - maybe a trip to the junkyard - and hope to offer some more findings before too long.

I'm also curious about just where this antenna is…..sharkfin? dashboard? Perhaps minor details, but if it's in the dash it might also be tamed with a shield……tinfoil hat, anyone?

Anyway, I hope this helps.
In the meantime, here's what I know, for others who also might want to pursue the air gap:

(Connections in the back of the Uconnect head)

White - am/fm terrestrial radio
Green - for sat + nav radio
Pink - for sat radio only
Red - CDMA radio

There is another White connector body, larger and away from the antenna cables, that connects to the USB hub.

(some pics)

The cables…


CDMA connected… (sorry 'bout the glare)


CDMA disconnected, TravelLink lives!


Nag screen…


No service…
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  #20  
Old 07-28-2015, 06:11 AM
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Re: uConnect 15.26.1 is buggy; I want to downgrade.

I am reporting no problems with the 15.26.1 update. The previous one (year old) was buggy as the radio would occasionally have to be reset.

I would be careful with the wire cutting initiative. I would not be surprised if some feedback mechanism existed and once a cellular signal would not be detected, you get some dreaded error message that requires an expensive visit to the dealership.

I find it safer to hack the installation and delete the Sierra Wireless driver from the ISO. If anything is bad, then install the full, unmolested ISO.
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  #21  
Old 07-28-2015, 10:59 AM
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Re: uConnect 15.26.1 is buggy; I want to downgrade.

Quote:
Originally Posted by f1anatic View Post

I find it safer to hack the installation and delete the Sierra Wireless driver from the ISO. If anything is bad, then install the full, unmolested ISO.
My guess is that is impossible because of check sum routine.
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  #22  
Old 07-28-2015, 11:03 AM
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Re: uConnect 15.26.1 is buggy; I want to downgrade.

Quote:
Originally Posted by f1anatic View Post
I am reporting no problems with the 15.26.1 update. The previous one (year old) was buggy as the radio would occasionally have to be reset.

I would be careful with the wire cutting initiative. I would not be surprised if some feedback mechanism existed and once a cellular signal would not be detected, you

I find it safer to hack the installation and delete the Sierra Wireless driver from the ISO. If anything is bad, then install the full, unmolested ISO.
That seems like a hands-clean approach.
Can the image be edited like that and still be recognized by the unit for loading, or will it upset a code signature or
checksum and be rejected?

BTW, I have a post pending review by moderator (new kid on the block?) that touches on the CDMA disconnect scheme....hopefully it'll be cleared soon.
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  #23  
Old 07-28-2015, 03:15 PM
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Re: uConnect 15.26.1 is buggy; I want to downgrade.

Quote:
Originally Posted by WaltA View Post
Could you, instead, just stop paying Sprint, and Sprint will disconnect your Uconnect Access from their network?
You aren't paying Sprint at all, unless you buy G3 service for vacation or other service.

However, even if you stop paying your cell phone bill, your network had better allow you to make 911 calls, so you still have connectivity no matter what.
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  #24  
Old 07-28-2015, 05:39 PM
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Re: uConnect 15.26.1 is buggy; I want to downgrade.

Does anyone know for sure what's the recall update actually consist of ? Is it just the update to the Uconnect ? The 15.26.1. Because I updated my Uconnect to the new version 15.26.1, and I'm having problems with remote lock and unlock plus the assist icons in the screen don't work. It says your vehicle is not registered with Uconnect. It is registered with Uconnect. I took it to the dealer and they said there is nothing wrong with the radio. It's Uconnect sending some update to my Jeep and I have to wait 5 days for it to go through. I think it BS but I have no choice. But they said they did the recall update also. I said that I thought I already did the update to 15.26.1. He said that there was another update they applied for the recall. Is it all Bull Shit? I don't know if I believe them.


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