Questions tagged [t2]

The T2 chip is a custom Apple chip that handles the security functions for APFS encrypted storage, TouchID and secure boot. It also integrates other functions like SSD, systems management (SMC) controllers, and well as audio and image processors.

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What is this green symbol on the touch bar?

I've seen this green symbol on the touch bar of a MacBook Pro, as shown in the image below. I have no idea what it could mean or what it signifies. Some details about it: It only comes on when the ...
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0answers
20 views

Can't reinstall OSX after wiping with intermittent interent; T2, Startup Security Utility, no admin

I wanted to wipe and reinstall my 2018 MacBook Air with a T2 security chip. I am running into a problem with an intermittent internet connection. I erased the Hard Drive in recovery mode with Disk ...
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1answer
48 views

How can the check point on startup for macOS's T2 chip authentication be bypassed for securely signed OS's like RedHat?

How can the checkpoint on startup for macOS's T2 chip authentication be bypassed for securely signed OS's like RedHat? I know after both drives within, say macOS Catalina for example, are mounted ...
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81 views

How to update bridgeOS without internet connection?

We recently tried to update an air gapped Mac Mini 2018 with the 10.14.6 Combo Update. It failed because the bridgeOS version was too old. On an internet connected Mac it just downloads the latest ...
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1answer
129 views

How to clean install of MacOS on 2018 MBP

I have a 13" 2018 MacBook Pro. My System Integrity Protection is off, and T2 security is set to None. After an update to MacOS Catalina 10.15.3, my mac would stay at the bootup screen with an apple ...
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96 views

Mac with T2 chip, downgraded from Catalina to Mojave, has anyone got a working Recovery?

Recovery does not work after downgrade. cmd-R goes to Internet Recovery instead of internal Recovery Internet Recovery goes error '-1008F' I've disabled Find My Mac and not rolled in the beta ...
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1answer
2k views

MacBook Pro 2019 Touch Bar lagging when Changing Volume

I have a 2019 MacBook Pro 15 inch with touch bar. I change the volume a lot when watching youtube videos. This makes the Touch Bar lag and then crash. This has been a major issue since I was ...
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1answer
103 views

Behavior of macOS After Toggling Secure Boot on T2 Chip: Does It Remember the ECID?

I am reading up on the T2 chip as I look at plans to avoid multiple machines by consolidating various OS requirements onto a single computer. It sounds like I can use Full Security for Secure Boot in ...
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1answer
750 views

Can the Apple T2 chip be used as a TPM to enable BitLocker?

I have a 2019 MacBook Pro, with the Apple T2 Security Chip. I have installed Windows 10 via Boot Camp, and that is working well. I would like to turn on BitLocker in W10 and take advantage of that ...
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247 views

T2 chip on 2018 Mac Mini causes booting Mac OS via Refind bug after unplugging power

Recently received new shipment of T2 2018 Mac Minis at work. I had to install the refind boot picker on them. Install is straightforward and successful but for some reason once I unplug the power ...
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1answer
96 views

Restoring CCC or TimeCapsule from MacBookPro (2017) to new (2018)

I had a MacBook Pro 2017 stolen. Luckily I have 2 backups: Time capsule (day old) Carbon Copy Cloner USB hard drive (30 days old) MacBook Pro 2017 was running Sierra (or High Sierra?) now I forgot ...
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38 views

Set default boot disk to USB on macmini with T2 chip

I need to setup boot always from USB stick. I can boot it from USB by pressing Alt and selecting specific source. Buy how to do it permanently? Is is possible?
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760 views

Can I use the whole internal SSD for Boot Camp on a T2 based Mac (Mac mini late 2018)?

TL;DR Can I safely install Windows 10 on the entire internal SSD on a T2-based Mac (mini) rather than splitting the drive space between macOS and Windows? Is there a particular method for this that I ...