I can't install the Sonnet Firmware Upgrade

Discussion in 'Mac Basics and Help' started by Sorkvild, Oct 31, 2007.

  1. Sorkvild macrumors 6502

    Feb 23, 2007
    I'm trying to install the Sonnet Firmware Upgrade I need before I can install the new processor (for a MDD G4), and I can install it from the CD with no problem, but it's when I have to reboot and launch the upgrade app I get a Fatal Error, cannot connect to ROM. I have made sure countless time that I have booted up in programmer's mode but I still get that error! Anyone know what is going on? Thanks.
  2. AddisonEllis macrumors newbie

    Mar 9, 2008
    Same here

    Hi. I'm having the same issue. Did you get this resolved? I think I need to update my firmware to 4.28 but I no longer have Mac Classic environment. Any input you have as to how I might resolve the Sonnet firmware or Mac firmware 4.28 update or both is certainly greatly appreciated. Thanks for your time. Addison

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