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firmware

macOS 10.14.4 update likely on 25 March, with new iMacs and more?

Ready to download updates to macOS, iOS, watchOS, Xcode, and some security updates, all at once? It looks like we’re going to be busy next week.

March 19, 2019 Macs, Technology

Setting up a new (or repurposed) Mac: 8 The problem of updating firmware

Setting up a new or repurposed Mac may involve updating its firmware – EFI, SMC, and T2 chip if necessary. You can’t do that using imaging, but must run an Apple system installer or updater.

February 11, 2019 Macs, Technology

LockRattler 4.15 should detect Macs with T2 chips properly

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Hopefully the last fix to accommodate Macs with T2 chips. Recommended for those with Macs with T2 chips.

November 6, 2018 Macs, Technology

LockRattler 4.14 helps even more with EFI firmware

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Now works with Macs equipped with T2 chip, giving iBridge version, and links to EFI firmware version reference. Recommended for all users.

November 5, 2018 Macs, Technology

Last Week on My Mac: What firmware version is that?

After surprise EFI firmware updates, an unsurprising set of problems. Which version to use, and how to use it? Or is it just a ploy to confuse?

November 4, 2018 Macs, Technology

LockRattler 4.13 now checks your EFI firmware

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Helps unscramble EFI firmware version confusion, and gives details of the macOS 10.14.1 update properly. Recommended for all users.

November 3, 2018 Macs, Technology

Which EFI firmware should your Mac be using? (version 3)

Apple doesn’t provide an official list of the current EFI firmware versions which should be installed on each […]

October 31, 2018 Macs, Technology

EFI firmware changes with 10.14.1, HS Security Update 2018-002, and Sierra Security Update 2018-005

If you have updated to macOS Mojave 10.14.1, or applied the latest Security Update for High Sierra (2018-002) […]

October 31, 2018 Macs, Technology

macOS 10.14 Mojave doesn’t bring a fresh round of EFI firmware updates

I have now had a chance to analyse the EFI firmware updates included in the macOS 10.14 Mojave […]

September 29, 2018 Macs, Technology

Updated visual summary of the Mac boot process

Adds details of the sequence of screens displayed at each stage, to help diagnose boot problems.

September 17, 2018 Macs, Technology

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