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This article will guide you how to install VAG-COM USB cable on Windows and VCDS software. (This article also applies to later versions of VCDS software)
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STEP 1: Install Ross-Tech VCDS Software
DO NOT plug VAG-COM cable into computer yet.
Uninstall any other VCDS versions, if present on computer. Then delete c:Ross-Tech folder.
Install VCDS software. Make sure to tick ON 'Install 32-bit'. (If option is grayed out, don't worry, continue.)
Leave original installation path of: C:Ross-TechVCDS
When install is complete, do not launch VCDS.
Exit the Installer.
STEP 2: Plug VAG-COM Cable Into Computer
Plug VAGCOM cable into any USB port.
Windows will install drivers automatically.
If driver install fails, skip to Troubleshooting.
STEP 3: Disable Internet & Launch VCDS Software
Golden Rule: Disconnect from WIFI before launching VCDS software.
Read golden rule above?If yes, then...
Launch VCDS software from Start Menu. Or from C:Ross-TechVCDSVCDS.exe
Go to: Options » Test (leave it as USB)
It should show 'Port Status: OK':
Click 'Save'.
STEP 4: Enable license
On main screen, click on button:
Make sure it says:
If it shows instead: Invalid/Unauthorized, then do again:
Go to: Options » Test
It should show 'Port Status: OK' > Save > You're now ready to scan your car!
Troubleshooting:
You are here because when you inserted VAG-COM cable for first time, Windows failed to install drivers properly.
Expand:
SOLUTION 1:
Leave cable connected to computer. Restart computer. It should be fixed now. Go to Step 3.
SOLUTION 2:
VAGCOM cable should be connected to computer.
1) Go to Control Panel.
- Windows Vista/7/8/10: Control Panel » System » Device Manager
- Windows XP: Control Panel » System » 'Hardware' tab » Device Manager
2) Expand 'Ports (COM & LPT)' or 'Universal Serial Bus Controllers'.
You're looking for a device that has name 'Ross-Tech' in it. It will have a yellow mark next to it like this:
Here's an example: OR it may show as 'Ross-Tech Direct USB Interface'.
3) Right-click on this device with the yellow mark » Update Driver Software.
4) Choose 'Browse Computer for Driver Software'.
5) Browse to: 'C:Ross-TechVCDS'. It should look like this:
6) Click 'Next'. When you get below message, choose 'Install this driver software anyway'.
When driver installation is complete, disconnect cable from computer. Restart computer.
When you're back in Windows, you may connect cable into computer, and go to Step 3.
SOLUTION 3 :
If after SOLUTION 2, cable is still showing a Yellow mark (), then you're likely on Windows 8, 8.1, 10 or above.
In this case, disconnect cable.
And disable driver signature enforcement. Here's how: Windows 8/8.1|Windows 10
When done, go to Step 3.
Notes:
- DO NOT update the software to latest version, else it will not work. Only works on current version.
- If you bought your VAG-COM cable from us, then registration is not needed. It's already registered/licensed.
Virtual COM Port Drivers for Ross-Tech USB Interfaces
Older Ross-Tech RS-232 Serial interfaces can be set to power up as 'dumb K-Line pass through' interfaces. This allowed those old Serial interfaces to be compatible with a wide variety of third-party applications which expect a 'K-line pass-through' serial interface. However, our USB interfaces present additional challenges. Early in their development, we found a number of technical advantages to using a 'direct' USB driver which bypasses the Windows Serial drivers entirely. Hence the USB drivers that ship with VCDS do not emulate a serial COM port and cannot be used with applications that expect to communicate via a serial port.
NOTE: The following applies to our legacy USB interfaces (HEX-USB, KII-USB and HEX-USB+CAN). It does NOT apply to our current HEX-V2 or HEX-NET interfaces. These new interfaces do not use a USB UART chip and cannot be be used for 'dumb K-line pass-through'!
NOTE: The following applies to our legacy USB interfaces (HEX-USB, KII-USB and HEX-USB+CAN). It does NOT apply to our current HEX-V2 or HEX-NET interfaces. These new interfaces do not use a USB UART chip and cannot be be used for 'dumb K-line pass-through'!
In order to facilitate the use of third-party applications which expect to communicate with a serial interface, drivers that emulate a COM port are available. However, anyone thinking about using them needs to be aware of the following points:
- We do not offer installation support for these drivers. They should be used only by someone who is competent/comfortable installing (and possible uninstalling) USB drivers on his PC.
- We cannot offer any support for third-party software, nor any guarantee that it will work correctly with these drivers. Of course, the same would apply with a serial interface as well.
That said, here some installation notes:
- These drivers are compatible with Windows 2000 and newer. They should work with W2K, XP-32, XP-64, Vista-32 and Vista-64. We do not have any VCP drivers for Windows 98!
- Unzip the contents of the download into a new folder.
- With an interface plugged in, find it in Device Manager, right-click it, and select Update Driver.
- Depending on what drivers your system already has installed, you may have to 'force' these by telling the wizard not to search, but to let you specify what driver to install, then doing the Have Disk and Browse thing.
- There's also the possibility that the Virtual COM Port won't install automatically. We've found no real pattern why it does on some systems and not on others. If it does not, find the interface in Device > Manager. The name should show '... with VCP'. Open the properties sheet, click the Advanced tab, and make sure Load VCP is checked. Once checked, disconnect and re-connect the interface.
- Once the USB Serial Port is installed, you may need to change the COM Port Number (depending on how high a number the applications supports). Device Manager, Properties sheet for the USB Serial Port, Port Settings tab, Advanced button. The COM Port Number may change if you plug the interface into a different USB port, so I'd recommend always using the same USB port.
- VCDS should continue to work fine with these drivers installed. Leave VCDS set to USB, not a Virtual COM Port!
Assuming you've read and understand all of the above, you can download the 'Virtual COM Port' drivers here:
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