What will happen if you hold Fn down while resetting PMU?

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iBook G4 14" 1.42 GHz

Model A1134

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kenda @kenda

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Gönderildi: 21 Mar 2010

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What will happen if you hold Fn down while resetting PMU?

In reading the steps one has to follow in order to reset the PMU of an iBook g4 (eg: http://support.apple.com/kb/HT1431) you always hit a big warning:

"Do not press the fn (Function) key while using this combination of keystrokes." (which is Shift-Control-Option-Power)

My question is: does anybody know what will happen if you instead press Fn while resetting it? Will it do harm? Has anybody actually tried holding Fn down while resetting the PMU?

Any piece of information will be greatly appreciated as google didn't help this time.

Regards,

m.

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rj713 @rj713

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Gönderildi: 22 Mar 2010

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Its been so long since I read about it I don't remember all the details but as I remember it modifies the keyboard. And if I remember correctly you have to use fn-delete to undo.I've never tried it myself so I don't know if this info is correct and since I'm not sure of the undo I'm not going to try it. If you should decide to try please remember fn-delete may get you out of it. Ralph

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Thanks for the info, will look for confirmations or confutations :)

kenda tarafından 22 Mar 2010

I've been looking too and cannot find the article I remember this from. I'll keep at it and maybe get lucky. Ralph

rj713 tarafından 22 Mar 2010

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Thanks for the info, will look for confirmations or confutations :) — kenda
I've been looking too and cannot find the article I remember this from. I'll keep at it and maybe get lucky. Ralph — rj713