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Apple Computing Products:
macOS - Operating System
Help! MacBook 6.1 takes 5 tries to turn on!
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<blockquote data-quote="EvenStranger" data-source="post: 1295924" data-attributes="member: 181804"><p>The rapid flashing and long tone indicate an EFI firmware issue. Did you make any changes at the firmware level, maybe playing with a boot loader for Ubuntu? You might try downloading and installing the firmware update again. </p><p></p><p><a href="http://support.apple.com/kb/ht1237" target="_blank">EFI and SMC firmware updates for Intel-based Macs</a></p></blockquote><p></p>
[QUOTE="EvenStranger, post: 1295924, member: 181804"] The rapid flashing and long tone indicate an EFI firmware issue. Did you make any changes at the firmware level, maybe playing with a boot loader for Ubuntu? You might try downloading and installing the firmware update again. [url=http://support.apple.com/kb/ht1237]EFI and SMC firmware updates for Intel-based Macs[/url] [/QUOTE]
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Apple Computing Products:
macOS - Operating System
Help! MacBook 6.1 takes 5 tries to turn on!
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