VAG-COM/VCDS EVERYTHING

**flyfvdi** · 4th April, 2023, 12:58 PM

Originally Posted by bg17aw

I don't know if this one qualifies? It always says "Illegal device. The device is locked"

Or maybe someone has any idea why it is not working anymore, what to test?

Anyway, I can try anything on it, I already bought another one.

contact fly zhang engineer to solve it.

**badrax** · 4th April, 2023, 07:32 PM

Originally Posted by bg17aw

I don't know if this one qualifies? It always says "Illegal device. The device is locked"

Or maybe someone has any idea why it is not working anymore, what to test?

Anyway, I can try anything on it, I already bought another one.

If you are sure that this is a VIIPlus loader 405 interface then yes. But pleas check your interface and make sure. A lot of users have contacted me with the same info and it turns out that they have the early "415" version that came with a 405 chip.
Please share a picture of your PCB.

**sppeedy** · 5th April, 2023, 08:39 AM

Hello,
I flash my vcds cable from version 1.84 to 1.96,
and now to get the cable to work I have to connect it several times to the car. Mostly the diode in the cable lights up on the 3rd or 4th connection. Could someone help me with my problem?

**bg17aw** · 5th April, 2023, 12:07 PM

Originally Posted by badrax

If you are sure that this is a VIIPlus loader 405 interface then yes. But pleas check your interface and make sure. A lot of users have contacted me with the same info and it turns out that they have the early "415" version that came with a 405 chip.
Please share a picture of your PCB.

100% sure is a 405.
When you say "with the same info", do you mean they had the same error? I am curious what could have happened to this interface. From my tests with another good interface, seems like this error message ("Illegal device. The device is locked") appears when there is no 12 volt present.

**Gimse** · 5th April, 2023, 01:27 PM

@bg17aw

Uninstall the software you installed, do the same with VIIPLUSLOADER and reinstall them again. I assume that you want to run the software in English through VIIPLUSLOADER, so at the beginning check for installing drivers and the 32-bit extension in addition to the others already checked. Add the Ross Tech folder and the ViiPlusLoader folder from Programs Files (x86) to exceptions in the antivirus program. When I say anti-virus program, I mean either a dedicated one (Kaspersky, Norton, etc.) or Windows defender antivirus. Check before your antivirus program has already blocked any file related to VCDS or VIIPlusLoader that you need to restore it and give it permission. When you do the test, you must connect the interface to the car, to the laptop and turn on the ignition or start the engine. If you do all of the above it should work. If it doesn't work, try to rewrite the interface with an older firmware and then rewrite the latest one again. Likewise, check with which software version you last opened VIIPLUSLOADER and try to juggle with another version. There are several factors, but take them one by one.

**badrax** · 5th April, 2023, 02:10 PM

Originally Posted by bg17aw

100% sure is a 405.
When you say "with the same info", do you mean they had the same error? I am curious what could have happened to this interface. From my tests with another good interface, seems like this error message ("Illegal device. The device is locked") appears when there is no 12 volt present.

Yes it is a 405 but it is not a VIIPlus 405. This version will most likely only "support" VCDS 20.4.1
But you can upgrade it to run the VIIPlus firmware that I have shared.
If you have access to a real VIIPlus loader 405 then you can extract the LKT-AUTH from it and use on this device. This will allow you to launch VCDS using VIIPlus loader which is required for it to work with this firmware.
If you compare your photos with a real VIIPlus 405 you will see that they have different layout. Your interface is also missing the LKT4106 crypto chip which is also an indication that this is not a VIIPlus 405.

**bg17aw** · 5th April, 2023, 05:08 PM

Thank you, you are right, I tried without the loader and it seem to work with 12v from a powersupply (did not tried it on a car yet). I am attaching a pic with the test result

Originally Posted by badrax

If you have access to a real VIIPlus loader 405 then you can extract the LKT-AUTH from it and use on this device.

I do have another interface that works fine with the VIIPlus loader. Is that all I need? And would you be willing to hold my hand through the process? I would not be able to do this by myself

**badrax** · 5th April, 2023, 08:19 PM

Originally Posted by bg17aw

Thank you, you are right, I tried without the loader and it seem to work with 12v from a powersupply (did not tried it on a car yet). I am attaching a pic with the test result

I do have another interface that works fine with the VIIPlus loader. Is that all I need? And would you be willing to hold my hand through the process? I would not be able to do this by myself

Yes of course I can hold your hand

Send me a PM with your contact info (email) and I will send you the tool you need to extract the LKT data.
But you will have to send the LKT data back to me so that I can make you a new firmware.

**heshamzn** · 7th April, 2023, 05:59 PM

Me too Need someone to hold My hands in the same issue with chip end 429 i tried every thing that u can imagine

**mjessup** · 9th April, 2023, 08:34 PM

I was hoping someone could help me get the software working, I think I need to flash a update to my hexv2.
It is a clone, I was surprised to see it have the logo on the motherboard. Any guidance or links to software to try would be greatly appreciated, the seller I got this from is now banned on aliexpress

https://i.ibb.co/WGm5qPy/IMG-2209.jpg
https://i.ibb.co/Ws1pRRT/IMG-2208.jpg
https://i.ibb.co/tzxp5Dz/IMG-2207.jpg
https://i.ibb.co/86mY9ZK/IMG-2299-01.jpg
https://i.ibb.co/5GwrYL4/IMG-2298-01.jpg

Edit, feel free to dm if you'd like my email to help guide me through this. Thanks again guys

**ramarc669** · 10th April, 2023, 12:09 AM

Your cable will only support VCDS ver 20.4.1

**mjessup** · 10th April, 2023, 03:28 AM

Thanks, do I need to reflash it still?
badrax game me instructions on how to put the STM32 chip into DFU mode to clear it and then reflash it.

**flyfvdi** · 10th April, 2023, 03:52 AM

Originally Posted by mjessup

I was hoping someone could help me get the software working, I think I need to flash a update to my hexv2.
It is a clone, I was surprised to see it have the logo on the motherboard. Any guidance or links to software to try would be greatly appreciated, the seller I got this from is now banned on aliexpress

https://i.ibb.co/WGm5qPy/IMG-2209.jpg
https://i.ibb.co/Ws1pRRT/IMG-2208.jpg
https://i.ibb.co/tzxp5Dz/IMG-2207.jpg
https://i.ibb.co/86mY9ZK/IMG-2299-01.jpg
https://i.ibb.co/5GwrYL4/IMG-2298-01.jpg

Edit, feel free to dm if you'd like my email to help guide me through this. Thanks again guys

IC is stm415

**mjessup** · 10th April, 2023, 05:01 AM

Originally Posted by flyfvdi

IC is stm415

Update, huge thank you to @Badrax !!! He gave me directions on how to put my interface in DFU mode by connecting the 3.3v pin to the boot pin, and provided a file to re-flash it.

I am working on VCDS 23.3 using the VIIPlus loader.

If your having troubles reach out to him. I was so close to buying a new interface. I'm so happy I found this forum. THANK YOU!

**flyfvdi** · 10th April, 2023, 07:17 AM

Originally Posted by mjessup

Update, huge thank you to @Badrax !!! He gave me directions on how to put my interface in DFU mode by connecting the 3.3v pin to the boot pin, and provided a file to re-flash it.

I am working on VCDS 23.3 using the VIIPlus loader.

If your having troubles reach out to him. I was so close to buying a new interface. I'm so happy I found this forum. THANK YOU!

is your vcds hex-v2 with stm 415 ? all functions work well ?