TS3824: iMac (Mid 2011): Unresponsive white screen on startup or vertical lines on screen

Learn about iMac (Mid 2011): Unresponsive white screen on startup or vertical lines on screen
terrifromsilver creek
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Q: I have a question mark ? on my screen. Computer is unresponsive

how do i download firmware if computer is unresponsive

Posted on Aug 20, 2012 2:38 PM

by BDAqua,Solvedanswer
BDAqua BDAqua
Level 10 (123,860 points)
A:

You cannot if it's unresponsive.

 

Hold Option or alt key at bootup, does any boot choice show up?

Posted on Aug 20, 2012 3:03 PM

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terrifromsilver creek

Q: I have a question mark ? on my screen. Computer is unresponsive

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