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Usb error mesege,when only usb cable inserted in

By first_blood
Feb 12, 2008
  1. hello
    my problam is i'm getting this error in a yellow ballon when i insert my usb cable to to usb port "usb device not recognized"

    the thing is i only insert the cable with no device attached to it.

    how the computer knows something is wrong when only the cable is inserted?

    it's the same thing as the usb port is standing when no device is attached to it,
    unless there is a short in the cable or something a like,but there isn't,i checked it and all the wires conduct to them self(both ends of the usb cable) with no short.

    any ideas?

    edit:
    xp pro sp1 fresh installation
    tried another cable,works fine-with or without a device
     
  2. jobeard

    jobeard TS Ambassador Posts: 9,322   +620

    hum; what kind of cable? Classic A-B or some specialize device?

    did you install your USB drivers that came with your device(s)?
     
  3. first_blood

    first_blood TS Rookie Topic Starter

    ok back off a little bit and u'll see there isn't any device attached to it.

    the cable is a usb mini 5 (for camera),i don't think the cable is really important since nothing is attached to it.

    as you can see no drivers are required.
     
  4. jobeard

    jobeard TS Ambassador Posts: 9,322   +620

    good info; then there should be no errors created by attaching it!
    There should be no interrupt to even see the cable insert. That happens when
    the connection is device--cable--usb.port on the system.

    suggest that the cable is bad.
     
  5. first_blood

    first_blood TS Rookie Topic Starter

    thanks for the advice i'll check the cable again.
     
  6. pofk3utdfan

    pofk3utdfan TS Rookie

    I had this problem too..but it was with the gamepad..the cable was bad...i guess your cable is bad too..
     
  7. first_blood

    first_blood TS Rookie Topic Starter

    i checked the cable again and all fine by me.

    the cable is a little ripped and exposed where the shield is but it doesn't bother the conductivity between the two ends of the cable.

    the cable has 4 wires (red,blue,green,white) and a shield,all conduct to there correspand and none of the wires short.

    so still why the erorr? maybe there is another way the exposed shield is effecting the cable?

    edit:
    gonna search the web now to find out why usb is even shielded
     
  8. jobeard

    jobeard TS Ambassador Posts: 9,322   +620

    I'm sorry but (imo) you're flogging a dead horse -- get a new cable :rolleyes:
     
  9. first_blood

    first_blood TS Rookie Topic Starter

    it isn't dead yet,i'll just cut the cable near the exposed part and solder it back,it should work.
    the main reason i keep persist on solving this case is not from the reason i'm ironfisted but from the reason i'm curios and knowledge seeker.
     
  10. jobeard

    jobeard TS Ambassador Posts: 9,322   +620

    have you heard of impedance matching? you're going to change the characteristics of
    the cable and introduce issues. you could have walked to the store and come back with a
    good cable and be done by now.

    sometimes we have fun just for fun's sake --- enjoy :)
     
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