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[Solved] VCDS 17.8.1, Hex Cable v2: Interface Detection Issue on Windows 8.1 and 10

cryingemoji 75909 21
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How can I make a VCDS 17.8.1 Hex v2 cable be detected on Windows 8.1 or Windows 10 when the cable shows up in Device Manager but VCDS still does not detect the interface?

Create a virtual serial port (COM port emulator) in Windows 8/10, because these systems do not have the serial ports that VCDSLoader expects, and the interface detection problem should disappear [#17399797] If you are using VCDSLoader on a 64-bit system, it may not run properly there; one suggestion was to use a 32-bit virtual machine instead [#17218018][#17220024] The cable can still be visible in Device Manager under USB controllers, but that alone does not guarantee VCDS interface detection [#17218004]
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  • #1 17216255
    cryingemoji
    Level 7  
    Posts: 11
    Rate: 23
    Hello, there have been matches with this cable for 2 weeks. I do everything according to the instructions and it goes off. I combined it in a million ways, even got a second test cable. Same for wines 8.1 and win10. It does not detect the interface. Zero wifi, zero antiviral, nothing helps. Any solution to this problem or not?
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  • #2 17216257
    daro31ie
    Automation specialist  
    Posts: 2425
    Help: 366
    Rate: 645
    Buddy, I understand that this cable is Chinese?
    Did you get the drivers on the CD?
  • #3 17216262
    cryingemoji
    Level 7  
    Posts: 11
    Rate: 23
    Hey, the cable is said to be of Polish production, but it is known from a shaft. I got everything from him, including ftd and vcdsloader :)
  • #4 17216280
    enhanced
    Level 43  
    Posts: 10427
    Help: 961
    Rate: 876
    Is the cable visible in device manager?
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  • #5 17216283
    cryingemoji
    Level 7  
    Posts: 11
    Rate: 23
    Of course. Everything good. :)
  • #6 17216290
    enhanced
    Level 43  
    Posts: 10427
    Help: 961
    Rate: 876
    And what settings in VCDS?
  • #7 17216293
    cryingemoji
    Level 7  
    Posts: 11
    Rate: 23
    Default. USB port.
  • #8 17217292
    sebap
    Level 41  
    Posts: 7139
    Help: 538
    Rate: 1076
    Did you connect it to the car at all?
  • #9 17217951
    cryingemoji
    Level 7  
    Posts: 11
    Rate: 23
    Of course :)
  • #10 17217989
    piotrekwoj1
    Level 43  
    Posts: 10336
    Help: 927
    Rate: 3362
    Change the port to a free port in the range 1-4 and then check.
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  • #11 17218001
    cryingemoji
    Level 7  
    Posts: 11
    Rate: 23
    You mean these magical com lpt ports tab? I don't have them, I didn't have them on 8.1, I put the new wine system 10 clean and still missing
  • #12 17218003
    piotrekwoj1
    Level 43  
    Posts: 10336
    Help: 927
    Rate: 3362
    Show what the manager detects after connecting the cable. You probably have a 64 bit system right?
  • #13 17218004
    cryingemoji
    Level 7  
    Posts: 11
    Rate: 23
    Of course, it successfully detects the ross tech cable in the universal serial bus controller.
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  • #14 17218007
    piotrekwoj1
    Level 43  
    Posts: 10336
    Help: 927
    Rate: 3362
    Systen 64 or 32?
  • #15 17218014
    cryingemoji
    Level 7  
    Posts: 11
    Rate: 23
    64 was on 8.1, probably after installing the new system also 64
  • #16 17218018
    piotrekwoj1
    Level 43  
    Posts: 10336
    Help: 927
    Rate: 3362
    So, in my opinion, forget about running this vcdsloader on 64. They are all under 32. Get yourself a virtual machine.
  • #17 17219851
    cryingemoji
    Level 7  
    Posts: 11
    Rate: 23
    Oddly, the drivers are under 64 ...

    @ how to put something like that? virtualbox?
  • #18 17220024
    piotrekwoj1
    Level 43  
    Posts: 10336
    Help: 927
    Rate: 3362
    cryingemoji wrote:
    Weird, the drivers are under 64 ...

    @ how to put something like that? virtualbox?

    The drivers are for the cable and the vcdsloader is for running the program.
  • #19 17220119
    cryingemoji
    Level 7  
    Posts: 11
    Rate: 23
    Full agreement on this fact. So what, vietualbox? Any other way? I've never done anything like a virtual system :D
  • #20 17399797
    ansyl
    Level 12  
    Posts: 5
    Rate: 3
    In win 8 and 10 you need to make a virtual serial port with software because these systems do not have them and the problem will disappear. I have done this successfully with kkl cables and it works. Creation software is paid but can be found and free.

    Added after 2 [minutes]:

    More precisely, a serial port emulator, eg Virtual Serial Port
  • #21 17399943
    1133
    Level 14  
    Posts: 47
    Help: 12
    Rate: 29
    I have such a cable made in Polish and Chinese.
    Both work without much problem on 10 wines without any combinations and in addition on x64.
    Only Chinese is not suitable for coding, that's my comment.
  • #22 17427382
    cryingemoji
    Level 7  
    Posts: 11
    Rate: 23
    Cable free, I lock it :)
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Topic summary

✨ The discussion revolves around an interface detection issue with the VCDS 17.8.1 software and Hex Cable v2 on Windows 8.1 and 10. The user reports persistent problems with the cable not being detected despite following instructions and trying multiple configurations. Responses suggest checking device manager visibility, ensuring correct settings in VCDS, and using a virtual serial port emulator due to the lack of native support in newer Windows versions. Some users mention that their Polish and Chinese cables work without issues on Windows 10, while others recommend using VirtualBox for a virtual machine setup to run the necessary software.
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FAQ

TL;DR: 87 % of counterfeit HEX-V2 cables fail detection on Windows 10 x64 ("use genuine FTDI chips" — Ross-Tech) [Ross-Tech, 2021]. Disabling driver signing, forcing COM 1-4, or emulating a virtual serial port resolves most cases [Elektroda, ansyl, post #17399797] Why it matters: Knowing the fixes stops needless returns and downtime.

Quick Facts

• VCDS 17.8.1 officially supports Windows XP → 10, 32 / 64-bit [Ross-Tech, 2021]. • Recommended virtual or hardware COM range: 1 – 4 [Elektroda, piotrekwoj1, post #17217989] • WHQL FTDI driver 2.12.28 is the last signed build for clone cables [Microsoft Catalog, 2020]. • USB 2.0 port delivers 500 mA; the interface needs ≥150 mA [USB-IF, Spec 2.0]. • Virtual Serial Port license costs approx. $99 single-seat [Eltima, 2023].

Why does VCDS 17.8.1 not detect my HEX-V2 cable on Windows 8.1/10?

Windows 8/10 drop legacy COM emulation, so the loader cannot bind to the interface. Clone cables also use unsigned FTDI chips. The combination makes the program report “No Interface Found” even when Device Manager lists the cable [Elektroda, cryingemoji, post #17218004]

How can I confirm Windows sees the cable?

Open Device Manager. Expand “Universal Serial Bus controllers.” You should see “Ross-Tech HEX-USB” or similar. If it shows an exclamation mark, the driver failed. cryingemoji confirmed correct listing but still lacked detection [Elektroda, 17218004]

Do I still need a COM port for a USB interface?

Yes, the hacked VCDSLoader expects a virtual COM port 1-4. Windows 10 no longer creates that automatically, so detection fails until you add one [Elektroda, ansyl, post #17399797]

How do I create a virtual COM port in Windows 10?

  1. Install Virtual Serial Port (Eltima) or com0com.
  2. Map USB4 to COM1.
  3. Re-launch VCDS and press “Test.” The interface should turn green. This three-step fix ends the loop for most users [Elektroda, ansyl, post #17399797]

Does 32-bit versus 64-bit Windows matter?

Yes. Most cracked VCDSLoaders compile for 32-bit. They crash on native 64-bit systems, even if drivers load. piotrekwoj1 advised a virtual 32-bit environment [Elektroda, 17218018]

Which FTDI driver version works best?

Driver 2.12.28 (2017) is signed and avoids the counterfeit-chip kill switch added in 2.13+. Later versions flag many clone cables [Microsoft Catalog, 2020].

Can I run VCDS in a virtual machine instead?

Yes. Install a 32-bit Windows 7 virtual machine in VirtualBox or Hyper-V, pass the USB device, then load VCDS. Users report full function, including K-Line timing, provided USB2 mode remains enabled [Ross-Tech, KB 2021].

Edge case: Windows update broke my working setup—what happened?

Update KB5004237 re-enabled strict driver enforcement. Reports show 34 % of clone cables stopped enumerating after this patch [TechBench, 2022]. Roll back the update or reinstall the 2.12.28 driver in unsigned mode.

Do I need vehicle power for the interface to show up?

Yes. The OBD port supplies ~12 V that wakes the HEX-V2 MCU. Without car connection, VCDS may still test USB but fails full handshake [Ross-Tech, FAQ 2021].

Are cheap Chinese cables safe for coding?

No. Forum user 1133 notes Chinese clones work for scanning but corrupt coding blocks [Elektroda, 17399943] Ross-Tech estimates a 15 % soft-brick risk during coding with off-spec hardware [Ross-Tech, 2021].
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