iMac G3 Firmware Update With Cd Boot

Discussion in 'PowerPC Macs' started by ygtgngr, Sep 11, 2013.

  1. ygtgngr macrumors newbie

    Sep 11, 2013
    I have an iMac G3. I formatted my hard drive when I booted from cd. But now when I try to install the os I get a message saying my firmware is old. I tried to update my firmware with the cd but again I get an error saying my volume is locked so can not upgrade firmware.
  2. Intell macrumors P6


    Jan 24, 2010
    An iMac G3's firmware can only be updated by using a hard drive installation of Mac OS 9. The firmware update is required to install and boot from Mac OS X.

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