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Macbook Pro 9,2 EFI ROM Firmware MBP91.00D3.B0C dump

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Hello everyone,

I'm loking this Macbook Pro firmware to downgrade a friend's mid 2012 Macbook Pro 13" that is acting weird after a firmware upgrade meant to let him install Catalina and Big Sur.


I tried to download the firmware from the Apple website at this link https://support.apple.com/it-it/HT201518  but the link is apparently broken.


Any help would be much appreciated!

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