Apple has released an additional update for MacOS Mojave for some models of the 2018 MacBook Pro 15 ″. This update seems to fix the issue with the T2 security chip firmware on these computers.
Designated as “MacOS Mojave 10.14.5 Additional Update for MacBook Pro”, the software update only applies to MacBook Pro 15 ″ models with T2 security chip and differs from the wider version of macOS 10.14.5 available for all Macs compatible with Mojave,
Additional update is not available for other Mac models.
Release Notes, accompanying the download of an additional update, and a summary stating:
“An additional MacBook Pro update fixes a firmware issue for 15-inch MacBook Pro computers with a T2 security chip, and is recommended for all users.
For more information on the security content of this update, please visit: https://support.apple.com/kb/HT201222 »
MacBook Pro users with a T2 chip can find a software update available now using the software update mechanism in System Preferences in macOS. The update weighs about 950 MB and requires a reboot to complete.
Users with a suitable MacBook Pro model can also download the update directly from Apple via the following link:
As always, it is recommended that you back up your Mac before installing any system software updates or firmware updates.
Separately, Apple has just released MacBook Pro specifications, equipped with faster processors and an improved keyboard mechanism.