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发布于 2012 年 6 月, 型号 A1278. Intel 处理器,支持 Turbo Boost, 最多 512 MB DDR5 显存

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I can´t update the firmware

now im running MacOS catalina in the MBP mid 2012 and i have an old boot ROM version but when im going to update it says that a i need MacOS 10.9.5 so what can i do?Also the SMC version has the last one updated, so why is this updated but the rom no?

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How have you updated your system over the years? Have you been upgrading each OS release in turn?

Also what is your current drive a HDD or SSD?

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yes i have been upgrading but when swap to the ssd I install clean Mojave and then update to catalina and im currently using an ssd

the boot rom version that i have is 233.0.0.0.0

also, is necessary to do the SMC and nvram reset even when i have no issue?

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I guess I’m confused here? Boot ROM Version: 233.0.0.0.0 is the correct one for your system. It offers the needed update for APFS boot up.

I have a 2012 15” and my SMC Version is: 2.1f175

As far as SMC and NVRAM resets: I rarely need to do either. So unless you can expand on what you are encountering I suspect you are not addressing the real issue here.

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@danj i check the apple support website About EFI and SMC firmware updates for Intel-based Mac computers. and it says my mbp 13 mid 2012 (9,2) should have this ROM version:MBP91.00D3.B0C and the mine says 233.0.0.0.0 , so you are saying those versions are the same?

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@sebasg - The TN you found is old! Apple no longer maintains the firmware listing! Since introducing Gatekeeper Apple is constantly upgrading the systems firmware with updated signature files.

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Sebas G 将永远感激不已
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