iMac does not recognize USB devices

Discussion in 'iMac' started by Irmarie, May 12, 2009.

  1. Irmarie macrumors newbie

    Joined:
    May 12, 2009
    #1
    Hi! I have the most recent version of iMac 24" with a partition in the HDD to use Windows with parallels. I'm sure that the hard disk is almost full (about 3/4) but today, all the devices (mouse, printer, mac keyboard, external hard disk) are not recognized in the computer.

    I was trying to startup the computer in SAFE MODE but once again, the keyboard is not recognized. I can't do nothing! Inclusive, I am available to apply a FACTORY RESTORE but when the disk 1 is inserted into the computer, I need to hit or double click the icon to run.

    What I can do? Please, help me on this as soon as you can!

    Thanks,

    *Irmarie
     
  2. BulletToothTony macrumors 6502

    BulletToothTony

    Joined:
    Jan 5, 2009
    #2
    Restart your computer and after you hear the first DONG hold the following keys ALL AT THE SAME TIME..

    Command - Alt/Option - R - P Hold them until you hear 2 more Dongs (3 in total)

    This will reset some settings in your computer and hopefully it will take care of it.. I know you say that the computer doesn't recognize anything on the usb but hopefully it does in the beginning..
     
  3. Sun Baked macrumors G5

    Sun Baked

    Joined:
    May 19, 2002
    #3
    Turn the computer off, unplug everything, all the cables and devices and then unplug the machine for a minute.

    Plug the power and the keyboard/mouse back in and see if it recognized when it is turned back on.
     
  4. Irmarie thread starter macrumors newbie

    Joined:
    May 12, 2009
    #4
    Thanks BulletToogh Tony for your recommendation but the computer is not working.
     
  5. Irmarie thread starter macrumors newbie

    Joined:
    May 12, 2009
    #5
    Thank you Sun Baked, but the mouse and keyboard (and all the USB devices) is not responding.
     
  6. Sun Baked macrumors G5

    Sun Baked

    Joined:
    May 19, 2002
    #6
    After unplugging all the cords, and then pulling the power cord out of back of the machine for a minute?

    What I said was basically called reset SMC.

    http://support.apple.com/kb/HT1543

    After you reset the SMC, don't plug everything back in. If you are plugging in a bus powered device into the keyboard, I can see the OS shutting down the keyboard.

    But look inside the USB ports on the machine, all the USB cable ends, and all the device ports for bent/shorted pins.
     
  7. Irmarie thread starter macrumors newbie

    Joined:
    May 12, 2009
    #7
    One friend told me that I can use another Mac computer such as Macbook, and obtain access to my iMac desktop wireless. This is right?
     
  8. DoFoT9 macrumors P6

    DoFoT9

    Joined:
    Jun 11, 2007
    Location:
    Singapore
    #8
    umm not really. you will have to connect the two via firewire - hold down T...

    oh wait, you dont have keyboard input :rolleyes:

    take it to apple, now!
     
  9. Sdahe macrumors 68000

    Sdahe

    Joined:
    Oct 26, 2007
    Location:
    San Juan, PR
    #9
    Hello Guys,

    Irmarie is a friend of mine... I told her to come here for help!!!!

    wow... not working yet Irmarie?
     
  10. Irmarie thread starter macrumors newbie

    Joined:
    May 12, 2009
    #10
    No friend! Not working yet. I'm going to coordinate an appointment with a Mac Technician to provide me assistance over the phone. I'll let you know!
     

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