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Apple Computing Products:
macOS - Operating System
Botched OSX upgrade
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<blockquote data-quote="AngelsFallFirst" data-source="post: 37318"><p>I don't think the upgrade will fix your problem unless firmware is modified as part of the process. </p><p></p><p>Can that model iMac video mirror to an external monitor? if so that should work, so you can see what you're doing in OS9.1/9.2 and do the firmware update.</p><p></p><p>The monitor funkyness seems to be something to do with the iMac's booting with the screen in suspend mode, I remember reading somewhere that if you boot OS9.1/9.2 and leave it for 30mins to an hour (or however long until it's set to kick into suspend) the screen will flick to life after being bought out of suspend, which will allow you to see to do the firmware install. </p><p></p><p>I remember reading some other tricks, so I'd hit google and see what you can turn up, this scenario is insanely common.</p><p></p><p>Best of luck.</p><p>Kari.</p></blockquote><p></p>
[QUOTE="AngelsFallFirst, post: 37318"] I don't think the upgrade will fix your problem unless firmware is modified as part of the process. Can that model iMac video mirror to an external monitor? if so that should work, so you can see what you're doing in OS9.1/9.2 and do the firmware update. The monitor funkyness seems to be something to do with the iMac's booting with the screen in suspend mode, I remember reading somewhere that if you boot OS9.1/9.2 and leave it for 30mins to an hour (or however long until it's set to kick into suspend) the screen will flick to life after being bought out of suspend, which will allow you to see to do the firmware install. I remember reading some other tricks, so I'd hit google and see what you can turn up, this scenario is insanely common. Best of luck. Kari. [/QUOTE]
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Apple Computing Products:
macOS - Operating System
Botched OSX upgrade
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