Please help! IMac: No bootable device for x-25m firmware update

Discussion in 'iMac' started by JDCho, Feb 4, 2011.

  1. JDCho macrumors newbie

    Joined:
    Feb 4, 2011
    Location:
    Michigan
    #1
    I have got "No bootable device" for x25-m firmware update on my IMac (2010). I swapped the superdrive to x25-m(SSD) and it has been used as Mac OS. The original superdrive has been used as an external super driver with a usb external enclosure.

    I found new firmware for x-25m was released last month and I tried to update the firmware but failed.

    Because one optical drive is required, the superdrive in an external enclosure was used to update the firmware. On my IMac, when I selected the CD having the firmware after holding down the alt-key, one error message appeared: "No bootable device, Insert boot disk and press any key".

    However, I successfully updated the firmware of another x25-m on my Macbook pro 13 (2010) using the usb external superdrive.

    I will appreciate for any help or suggestion.

    Thank you,
     
  2. JDCho thread starter macrumors newbie

    Joined:
    Feb 4, 2011
    Location:
    Michigan
    #2
    No reply!

    Any one know the difference of recognizing an external optical drive between Macbook pro and IMac?
     

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