I am a senior linux system admin.
How can I help you to investigate better the problem?

What did you modify in the patched 9844 NC?
I read on other land that 9 version of NC checks the rsa key of the SD files; if it is so how can the device read your patched 9844 NC?

Regards.

I remember you that I have 9843 version and not 9844.

The keygen mentioned on post 3 has been available?

If you know Linux it will be no problem to "unpack" the Navcore update.
In the images you will find the ttn to patch.
The problem is that the files are protected by hash codes and checksums and an installation will fail.
Since there is no known way to acces the internal memory for direct patching....

Ok, but if the files are protected by checksums there will be a file where the checksums are written.
Do you find it?

It is a 1024 bit RSA hash generated with private keys.
The public key is included in the NC somewhere.
If it would be so easy to generate a valid private key and to find the exact way the files are protected and checked,
we would have no problem problem with the new TT models - they use the same basic protection.
Only if you can access the internal memory you might be able to do something - if there are no additional checks.

Hello dear TT Carminat User
I want to know if it is possible with PDA (Android ou Linux) plugged on the car's plug USB connector with an explorer like ES Explorateur to "see" what sort or kind of files are on the car memory. They must exist a way to see what are in the car's memory as TOMTOM Carminat but also the files who go on Google live and so on.
Thanks a lot for the work
Zaarbee

I'm afraid if the Carminat has a usable USB connector it will be for Ethernet over USB, using a secure protocol and connection like two servers.
The best option would be to first check if there are any (hidden) connectors that could be used in the first place, after that testing with a Laptop.
Since noone has done it before there is nothing that you could use on a PDA or similar.

Hi ZAARBEE,
wich model of car do you have?

Hello
A Renault Laguna III Bose edition with a USB connector for Phone, IPHONE, IPOD, MP3 etc connection by wire USB for music on the radio set and BT for the phone handfree on the Bose system.
THX

Ok, so the usb connection is for radio and not for tomtom.

Hello, in the coming days I will try to disassemble the Carminat.
If I can find a connector to connect my pc (windows xp, but not linux) what kind of software should I use to check the files inside the device?
Advise me to do other controls?

bludeep wrote:Hello, in the coming days I will try to disassemble the Carminat.
If I can find a connector to connect my pc (windows xp, but not linux) what kind of software should I use to check the files inside the device?
Advise me to do other controls?

Use Windows XP, windows explorer.

Hello
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Zaarbee

ENGLISH ONLY, PLEASE!!

that is NOT caminat tomtom system....its carminat IT system

Downunder35m wrote:It is a 1024 bit RSA hash generated with private keys.
The public key is included in the NC somewhere.
If it would be so easy to generate a valid private key and to find the exact way the files are protected and checked,
we would have no problem problem with the new TT models - they use the same basic protection.
Only if you can access the internal memory you might be able to do something - if there are no additional checks.

No script is executed from the SD Card? In the past, several scripts were executed.
No file in loopback file is source into a bash script (e.g. in initrc)?
No conf file is read from SD Card that could give us more info (like logsettings.dat for vehicledaemon)?