Small repair shops and technology enthusiasts who try to fix their new Apple devices can take a serious risk of doing so. According to a report from The Verge, Apple confirmed that the new T2 security chip is designed to lock devices after repair if it does not recognize certain authorized spare parts.
Words of this new policy came out last month in an Apple Document circulated among authorized service providers. To replace certain hardware components, such as the Touch ID sensor or logic board on new Mac, the vendor must run a specific piece of diagnostic software.
This program, called "AST 2 System Configuration," works with the T2 security chip. If this step is not performed on devices with the T2 chip, it may cause an inoperable machine.
"For Macs with the Apple T2 chip, the repair process is not completed for some parts before the AST 2 System Configuration suite has been run. Failure to perform this step will result in an inoperative system and incomplete repair," says internal the document, according to a report from MacRumors.
Apple only provides the special application to its own stores and authorized service providers, which means that unauthorized service providers, small businesses and individuals can not completely replace certain parts of new Macs. 1
Apple introduced the T2 security chip when it debuted the iMac Pro last year. It works primarily as a system controller in new Macs, which controls the microphone, speakers, cooling system and SSD. Not only does it facilitate a secure boot function and play a part in encryption of storage, but it also acts as a bridge between some hardware components. Finally, Apple also streamlines its invoice so it can rely less on third-party manufacturers.