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EFI and SMC firmware updates for Intel-based Macs

Summary

This article lists all available firmware updates for each Intel-based Mac. Firmware updates for Intel-based Macs may not be displayed automatically using Software Update. If they do not appear in Software Update, they must be manually downloaded from the Apple Support Downloads site.

If you are unsure whether your computer needs a particular update, simply download and open the update installer. The installer will alert you if the firmware update is already installed or not needed.

Products Affected

iMac, Mac mini, Mac Pro, MacBook, MacBook Pro, Xserve, MacBook Air

Checking your computer's EFI Boot ROM or SMC firmware version

  1. From the Apple menu, select About This Mac.
  2. Click the More Info... button.
  3. Under the Content header, select Hardware.
  4. The version information will be located in the pane on the right, such as this:

Available firmware updates

The table below lists available firmware updates for each Intel-based Mac.

Note: In some cases System Profiler may report later versions of firmware than those listed below; if this is the case, your computer does not require any additional firmware updates.

iMac
iMac (17-inch, Early 2006) IM41.0055.B08 (EFI 1.1) 1.1f5 (SMC 1.0)
iMac (20-inch, Early 2006) IM41.0055.B08 (EFI 1.1) 1.1f5 (SMC 1.0)
iMac (17-inch, Mid 2006) IM42.0071.B03 (EFI 1.1) -
iMac (17-inch, Late 2006)    IM51.0090.B09 (EFI 1.2) -
iMac (17-inch CD, Late 2006) IM52.0090.B09 (EFI 1.2) -
iMac (20-inch, Late 2006) IM51.0090.B09 (EFI 1.2) -
iMac (24-inch, Late 2006) IM61.0093.B07 (EFI 1.2) -
iMac (20-inch, Mid 2007) IM71.007A.B03 (EFI 1.3) -
iMac (24-inch, Mid 2007) IM71.007A.B03 (EFI 1.3) -
Mac mini
Mac mini (Early 2006) MM11.0055.B08 (EFI 1.1) 1.3f4 (SMC 1.0)
Mac mini (Late 2006) MM11.0055.B08 (EFI 1.1) 1.3f4 (SMC 1.0)
Mac mini (Mid 2007) MM11.0055.B08 (EFI 1.1) 1.3f4 (SMC 1.0)
MacBook
MacBook (13-inch) MB11.0061.B03 (EFI 1.0) 1.4f12 (SMC 1.1)
MacBook (Late 2006) MB21.00A5.B07 (EFI 1.1) -
MacBook (Mid 2007) MB21.00A5.B07 (EFI 1.1) -
MacBook (Late 2007) MB31.008E.B02 (EFI 1.2) -
MacBook Pro
MacBook Pro (15-inch) MBP11.0055.B08 (EFI 1.2) 1.2f10 (SMC 1.0)
MacBook Pro (17-inch) MBP12.0061.B03 (EFI 1.2) 1.5f10 (SMC 1.0)
MacBook Pro (15-inch, Core 2 Duo) MBP22.00A5.B07 (EFI 1.4) -
MacBook Pro (17-inch, Core 2 Duo) MBP21.00A5.B08 (EFI 1.5.1) -
MacBook Pro (15-inch, 2.4/2.2 GHz) MBP31.0070.B07 (EFI 1.5.1) -
MacBook Pro (17-inch, 2.4 GHz) MBP31.0070.B07 (EFI 1.5.1) -
Mac Pro
Mac Pro MP11.005C.B08 (EFI 1.2) 1.7f10 (SMC 1.1)
Mac Pro (8-core) MP21.007F.B06 (EFI 1.2) 1.15f3 (SMC 1.1)
Mac Pro (Early 2008) MP31.006C.B05 (EFI 1.3) -
Xserve
Xserve (Late 2006) XS11.0080.B01 (EFI 1.0) -
MacBook Air
MacBook Air MBA11.00BB.B03 (EFI 1.0) 1.23f9 (SMC 1.0)
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