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i'm upgrading to os monterey - while installing goes to "null" state

i'm upgrading to os monterey - while installing goes to "null" state

Posted on Sep 4, 2022 8:08 PM

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Posted on Sep 5, 2022 2:35 AM

If an error occurred while updating or installing macOS


There are reports appearing on the ASC Forums regarding failed installation of Monterey on older Qualifying Apple Computers. In most cases this is related to having a NON Apple Original Internal Drive ?  


The EFI Boot ROM included in Monterey is verifying for Original Apple Drive and if not found , may Balk or fail to upgrade to Monterey. 


Reports indicate the EFI BOOT ROM is Required to Flash the Computer and is a  requirement for a Successful Monterey Installation.


1 reply
Question marked as Best reply

Sep 5, 2022 2:35 AM in response to e.goldan

If an error occurred while updating or installing macOS


There are reports appearing on the ASC Forums regarding failed installation of Monterey on older Qualifying Apple Computers. In most cases this is related to having a NON Apple Original Internal Drive ?  


The EFI Boot ROM included in Monterey is verifying for Original Apple Drive and if not found , may Balk or fail to upgrade to Monterey. 


Reports indicate the EFI BOOT ROM is Required to Flash the Computer and is a  requirement for a Successful Monterey Installation.


i'm upgrading to os monterey - while installing goes to "null" state

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