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Thread: ElmScan5 USB-COM port could not be opened

  1. #1
    Constant Bitrate BADMOPAR's Avatar
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    ElmScan5 USB-COM port could not be opened

    Hi,
    I have problem with COM port opening.After new XP installation everything works fine till I turn the computer off.After next start up i become message "COM port could not be opened" .I have tried change the port number ,install new drivers from FTDI and STN Finder,unfortunately with no success.
    I have attached a picture of STN Finder log.I don't understand how is possible,that
    com port is allready opened.This is fresh installation of Windows XP with touchscreen
    and wifi adapter via USB connected.Every suggestion would be very appreciated.

    I don't wanna be a product of my environment.
    I want my environment to be product of me.

  2. #2
    SuperMod - OBDII GPS Logger forum
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    I had that problem, too. There's other software on your system that's opening the serial port. Even thought you don't think there is, I assure you that something's doing it :-)

    In my case, the offender was the Palm Desktop software. To fix that, I opened the palm software configuration and told it to only check for devices on USB or bluetooth, and ignore serial devices.

    Gary (-;
    OBDGPSLogger, for logging OBDII and/or GPS data
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  3. #3
    VENDOR - ScanTool Vitaliy's Avatar
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    I think Gary is right. Can you go to Control Panel, System, Device Manager, and take a screenshot of your ports?

    Vitaliy
    OBDLink MX: world's smallest, fastest, most advanced OBD/Bluetooth adapter with SW and MS CAN support. Read the review to learn more.
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  4. #4
    SuperMod - OBDII GPS Logger forum
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    While we're on the topic, what's the Windows equivalent of the unix lsof(8) command?

    Gary (-;
    OBDGPSLogger, for logging OBDII and/or GPS data
    OBDSim, an OBDII/ELM327 software simulator
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  5. #5
    VENDOR - ScanTool Vitaliy's Avatar
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    Quote Originally Posted by chunkyks View Post
    While we're on the topic, what's the Windows equivalent of the unix lsof(8) command?

    Gary (-;
    How's that "on the topic? "

    I have no idea.. haven't used Unix since college.

    Vitaliy
    OBDLink MX: world's smallest, fastest, most advanced OBD/Bluetooth adapter with SW and MS CAN support. Read the review to learn more.
    Need to look up a diagnostic trouble code? Try the most up-to-date, free DTCsearch.com!

    You cannot send me a private message using this forum. Use my email instead: vitaliy[@]scantool.net.

  6. #6
    SuperMod - OBDII GPS Logger forum
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    How's that "on the topic? "
    Because on unix, when I want to find out what program has a device/file/network port/whatever open, I use lsof and it tells me.

    On windows I had to spend ages rooting around to find out what application had my serial port open.

    Gary (-;
    OBDGPSLogger, for logging OBDII and/or GPS data
    OBDSim, an OBDII/ELM327 software simulator
    mp3car forums: obdgpslogger, obdsim

  7. #7
    VENDOR - ScanTool Vitaliy's Avatar
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    Quote Originally Posted by chunkyks View Post
    Because on unix, when I want to find out what program has a device/file/network port/whatever open, I use lsof and it tells me.

    On windows I had to spend ages rooting around to find out what application had my serial port open.

    Gary (-;
    Oh, I see. Try Process Monitor.

    Vitaliy
    OBDLink MX: world's smallest, fastest, most advanced OBD/Bluetooth adapter with SW and MS CAN support. Read the review to learn more.
    Need to look up a diagnostic trouble code? Try the most up-to-date, free DTCsearch.com!

    You cannot send me a private message using this forum. Use my email instead: vitaliy[@]scantool.net.

  8. #8
    Constant Bitrate BADMOPAR's Avatar
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    Hi, I'm back. I have made some tests.This time I have installed clean system and the ElmScan drivers with some other programs first and then I have made system back up with Acronis TrueImage. At this point everything works fine. After installation of other drivers/programs no matter if touchscreen,Bluetooth or any other drivers or programs like Centrafuse, The ElmScan 5 USB stops working with the same message "COM port could not be opened" . I want to mention that the same situation is on my laptop. It's very frustrating, that I can not solve this problem by myself. Please HELP
    I don't wanna be a product of my environment.
    I want my environment to be product of me.

  9. #9
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    I have the same situation with Windows 7. It either says it cannot open the COM port or that the device couldn't be initialized.

  10. #10
    Constant Bitrate BADMOPAR's Avatar
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    Bad news for me. I was thinking,that upgrading on win 7 could resolve my problem
    I don't wanna be a product of my environment.
    I want my environment to be product of me.

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