CC_333
Well-known member
I got an early version of the first generation iBook (the one that came in either Tangerine of Blueberry) last year, and it boots OS 8.6. Newer ones which came from the factory with 9.0 (such as my first one, bought new) apparently cannot boot 8.6. The main difference appears to be the boot ROM version.
According to EveryMac:
What I'm wondering is, is it possible to somehow copy the firmware form an early model (which I have), transplant it into a firmware updater, and use that to downgrade a newer model's ROM to $77D.45F3?
Thanks,
c
According to EveryMac:
Early models can run Mac OS 8.6 whereas models shipped after Mac OS 9 was released cannot run earlier versions of the Mac OS. Specifically, if the iBook has ROM version $77D.45F3, it will run Mac OS 8.6, but if it has a later ROM version, it cannot.
What I'm wondering is, is it possible to somehow copy the firmware form an early model (which I have), transplant it into a firmware updater, and use that to downgrade a newer model's ROM to $77D.45F3?
Thanks,
c