Update 840 Evo Firmware using USB drive

Discussion in 'iMac' started by loscamos93, Nov 26, 2014.

  1. loscamos93 macrumors newbie

    Joined:
    Nov 26, 2014
    #1
    Hello, I've replaced the superdrive in my iMac with an 840 Evo SSD. Now I have to update the firmware but using an external superdrive does not work. I couldn't find out a way to create a bootable usb with the update. Can someone please help me?
     
  2. Gazmo macrumors member

    Gazmo

    Joined:
    Nov 23, 2014
    Location:
    North Wales, UK
    #2
    My 840 Pro is due to arrive tomorrow, I'm wondering if I'm going to run into the same problem trying to update the firmware.
     
  3. loscamos93 thread starter macrumors newbie

    Joined:
    Nov 26, 2014
  4. Gazmo macrumors member

    Gazmo

    Joined:
    Nov 23, 2014
    Location:
    North Wales, UK
    #4
    Oh really, I didn't realise? How do you update the firmware on the Pro?
     
  5. Mr. Retrofire macrumors 601

    Mr. Retrofire

    Joined:
    Mar 2, 2010
    Location:
    www.emiliana.cl/en
    #5
    Via Apple Boot Camp (Windows 7 or newer) and Samsung Magician.
     
  6. Gazmo macrumors member

    Gazmo

    Joined:
    Nov 23, 2014
    Location:
    North Wales, UK
    #6
    So I have to have Windows 7 installed on my Mac via Bootcamp to update the firmware? Is this the only way?
     
  7. xgman macrumors 601

    xgman

    Joined:
    Aug 6, 2007
  8. gmanWA macrumors newbie

    Joined:
    Nov 12, 2009
    #8
    You are not going to be able to do it. You can take the ISO and convert it to a IMG file and then use dd to apply the IMG to a USB drive, or think about using rEFI to make a bootable usb and then copy the IMG contents - but in the end, the firmware updater code is expecting to be run from an optical drive on the esata bus and will not work from usb.

    your options are:

    1 - boot camp and use windows
    2 - pull the drive and put it somewhere where the updater can work
    3 - make a partition on the spindle drive and look into rEFI on there - you can then boot from there and run whatever.
     
  9. Zwhaler macrumors 603

    Zwhaler

    Joined:
    Jun 10, 2006
    #9

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