Mac Studio storage upgrade failed due to software blocking issue.

Update: Mac Studio requires an IPSW recovery after changing its SSD modules to ensure they are readable and bootable. Running a Device Firmware Update (DFU) recovery using the macOS IPSW package for Mac Studio should enable the machine to boot from a different SSD, provided both modules are the same size and brand, meaning storage upgrades still appear to be possible.

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YouTuber Luke Miani discovered that despite being easy to remove due to the lack of soldering, the Mac Studio's SSD storage is currently not user-upgradeable due to a software block.

The initial teardown revealed that the Mac Studio's storage could be upgraded since it wasn't soldered in place. Each ‌Mac Studio‌ contains two internal SSD slots, and the SSDs themselves can be freely swapped between connectors.

Miani tested whether ‌Mac Studio‌'s storage could be upgraded by users in practice. Miani wiped the ‌Mac Studio‌'s SSD, removed it from the machine, and inserted it into the empty SSD slot of another ‌Mac Studio‌, but the Mac's status light flashed SOS and it wouldn't boot.

‌Mac Studio‌ recognizes the SSD, but Apple's software prevents it from booting, suggesting this is an intentional decision by Apple to prevent users from upgrading their storage on their own. On its website, Apple claims that the Mac Studio's SSD storage is "not user accessible" and encourages users to allocate enough storage to the device at the time of purchase.

It now appears that the purpose of easily replaceable storage is to help authorized technicians perform repairs, and they may have software tools that enable "Mac Studio" to boot from different internal storage. Since blocking users from upgrading appears to be simply due to software blocking, Apple could allow users to upgrade their storage via updates in the future.

It was originally impossible for users to manually upgrade Mac Pro storage, but Apple continued to provide kits to upgrade Mac Pro storage in mid-2020, so Mac Studio has similar initiatives, especially considering Apple’s self-service repair plan Announce.

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