VAG-COM/VCDS EVERYTHING

**Lolo4321** · 25th January, 2021, 01:20 PM

Does it work with golf 7? / Hex v2 arm
Did anyone test kolimer with golf 7?

**jaubertel** · 25th January, 2021, 07:38 PM

Originally Posted by badrax

Hi
Some update on my work on upgrading the 415

I have made a new "firmware" / code to dump the whole 415 chip so that we can see what version of the bootloader is installed.
This is coz I see that there are different version of it from feedback I have received from some forum test users.

The bootloader I have on my 415 is verifying some code at address 0x08040000 and when crc8 is verified it reads the reset vector from it and jumps to this address. This code at 0x08040000 is actually a unmodified (or I believe this) firmware that contains the correct checksum and it's base address is actually 0x08010000. Now at this address 0x08010000 is a patched version of the firmware but it is using the same reset vector so when the bootloader jumps to it then all is good. My firmware is also patched to read the UID (AES encryption key) from the bootloader section which makes my firmware and bootloader compatible with each other (Use a common key).
........................................
regards

Hello Badrax, thank's for your very good job and respect.

I am waiting for my new cable like this PCB: Attachment 779876

Question: if I copy its firmware with the STLINK like this:
Can i extract the .bin of my cable easy with a ST STLINK (whith correct pinnouts on the STM32F405VGT6) .
and flash it with this if a upgrade fail?

Attachment 779865

I am interesed by the .bin file of the entire memory of the STM32

Regards.
PS: I am french and my English is no good...

**liviudiaconu** · 25th January, 2021, 08:57 PM

Originally Posted by bg17aw

What did I do wrong during installation?

When Windows starts, it seems it is running an update service.

Kolimer loader was of course not running at Windows start-up

Look in your Startup, maybe will see a command like "vcds.exe update" or something else.
Delete-it.
Or, Options-> "User interface...." tab, choose "Do not check for updates" insted "Release only", save..close VCDS and look in startup. Teoreticaly the command "vcds.exe update" must disapear.
If not, delete-it.

**badrax** · 26th January, 2021, 12:30 AM

Originally Posted by jaubertel

Hello Badrax, thank's for your very good job and respect.

I am waiting for my new cable like this PCB: Attachment 779876

Question: if I copy its firmware with the STLINK like this:
Can i extract the .bin of my cable easy with a ST STLINK (whith correct pinnouts on the STM32F405VGT6) .
and flash it with this if a upgrade fail?

Attachment 779865

I am interesed by the .bin file of the entire memory of the STM32

Regards.
PS: I am french and my English is no good...

The STM chip on these cables are most likely read protected so you cant just read out the content with a ST-Link debugger.
You could be lucky and hope they forgot to set the RDP level and if so you can read out the whole chip.
If RDP is set then the only way I know of to dump the content is using fault injection like voltage glitching.
If RDP2 is used then you will have to double glitch. First glitch from RDP2 -> RDP1 and then glitch the system bootloader when reading.

Check out wallet.fail and or chip.fail. They use voltage glitching to go from RDP2 to RDP1 for so to dump the RAM content.
It will require some more effort to dump the flash.

But. You could be lucky and get a cable set to RDP0

regards

**flyfvdi** · 26th January, 2021, 04:12 AM

Originally Posted by Lolo4321

Does it work with golf 7? / Hex v2 arm
Did anyone test kolimer with golf 7?

True 405-1.jpg

yes, this vcds hex-v2 work with golf 7

**Roma77** · 26th January, 2021, 06:50 AM

bg17aw
in the registry windows 7 it is here
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Shared Tools\MSConfig\startupfolder\C:^Users^PCname^AppDa ta^Roaming^Microsoft^Windows^Start Menu^Programs^Startup^RT-Updater.lnk

**borian** · 26th January, 2021, 09:03 AM

Originally Posted by Roma77

bg17aw
in the registry windows 7 it is here
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Shared Tools\MSConfig\startupfolder\C:^Users^PCname^AppDa ta^Roaming^Microsoft^Windows^Start Menu^Programs^Startup^RT-Updater.lnk

so just use a tool msconfig (type in cmd) and disable RT-Updater from launch list and for Windows 7 it will work as a charm

**kaalis** · 26th January, 2021, 09:33 AM

K2 connection fixed. Waiting for official to release it public.

**Roma77** · 26th January, 2021, 10:02 AM

Originally Posted by borian

so just use a tool msconfig (type in cmd) and disable RT-Updater from launch list and for Windows 7 it will work as a charm

I know, but removing excess garbage is much better than disabling it.

**donbrisko** · 26th January, 2021, 01:10 PM

Hey everyone,

anyone knows the PIN assignment of the 7 pin header? USB cable ground is placed on the most right pin (7).
Want to flash the interface USBASP soon - shouldn't make problems or?

IMG_20210125_122509.jpg IMG_20210125_122520.jpg

Thanks

!

**jan4** · 26th January, 2021, 02:50 PM

this is what you are searching for ;

26-1-2021 14-49-12.jpg

simply use a mm to follow the connector to the pins of the atmega162

**bendzji** · 26th January, 2021, 07:15 PM

Originally Posted by kaalis

K2 connection fixed. Waiting for official to release it public.

I confirm k2 working - still one little thing to repair - I guess they will wait with release for that.

**jaubertel** · 26th January, 2021, 09:51 PM

Originally Posted by badrax

Check out wallet.fail and or chip.fail. They use voltage glitching to go from RDP2 to RDP1 for so to dump the RAM content.
It will require some more effort to dump the flash.

But. You could be lucky and get a cable set to RDP0

regards

Hello badrax,

ST-Link can disable RDP1 but delete memory..., and i think's that it can't for RDP2.
It's very difficult to disable RDP1 without deleting the memory.
I have looked at Wallet.fail and Chip.fail but it's very complicated for my level.
when my cable arrive, i look if it is set to RDP0 but isn't Christmas...
Regards.