[ASUS B121] SD CARD and USB randomly not working

Discussion in 'EP121 Slate' started by sweetman, Sep 27, 2013.

  1. sweetman

    sweetman Pen Pal - Newbie

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    Dear all,
    recently I upgraded my asus B121 with win7 64bit to win 8 64 bit.
    It seems all is working ok.
    Except USB or SD-CARD reader: sometime they do not appear in explorer.
    To make them appear I have to go in the contro panel > devices manager > disable Enhanced host USB controller Intel(r) family chipset serie 5/serie 3400 -3B3C > re-enable Enhanced host USB controller Intel(r) family chipset serie 5/serie 3400 -3B3C

    I tried to update the driver but the driver update application can't find a new one.

    I've already checked the asus website but there are no drivers for win8 64 bit.
    IS there someone that can send me an updated driver?
    Can someone post here a screenshot of a working devide manager window?

    Thanks in advance for any help.

    tony
     
  2. CF77

    CF77 Love Tablet. Senior Member

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    You need members with win 8 to help...
    try use win7 drivers...from ASUS
     
  3. sweetman

    sweetman Pen Pal - Newbie

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    Thank cf77,
    Do you know which driver is responsabile for usb?
    And do you what driver is responsabile for pen/touch (sometime I cannot bypass the welcome screen.

    TIA again
    tony
     
  4. Marty

    Marty Scribbler - Standard Member Senior Member

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    I don't have first hand experience with the B121, but I believe the motherboards have the same USB controllers.

    Did you follow my guide for upgrading? It's best to do a clean install, as the default Win 8 drivers are compatible with the EP121 hardware.
     
    Last edited by a moderator: May 18, 2015
  5. Loiro Lindo

    Loiro Lindo Pen Pal - Newbie

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    diodo 121ep.jpg Good, someone help me? 121ep have a usb port that does not work, however I saw this component party, the problem may be there, unfortunately I can not see the component numbers, can someone help? thank you.
     
  6. CF77

    CF77 Love Tablet. Senior Member

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    Not sure what is that that..but looks like a cap to me..check any scrap usb boards from other cpu etc to see if you c@n find similar part. Thes are typical usb circuits..
     
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