Hello, I tried upgrading my M4 mac pro os which was initially Sequoia 15.1 to the latest all because the new Logic 12 require the latest os. Biggest mistake ever. The upgrade won't budge so I decided to erase the disk since most of my project files are stored on external drives and I can easily re-install the application and plugins that I use. Now the whole system is stuck no optionfor startup disk . Please help
MacBook Pro 13″, macOS 26.0
AI suggests, and I agree:
To erase all settings on a Mac, use the "Erase All Content and Settings" feature available in macOS Monterey 12 or later. This option securely removes all data and settings while keeping the operating system intact, preparing the Mac for a new user.
Erase your Mac and reset it to factory settings - Apple Support
if you used a different method, you may have erased too much, including parts of the "Secure Enclave".
this could require a Revive or Restore of the firmware, which require other similar Mac (or a service visit)
How to revive or restore Mac firmware - Apple Support
AI suggests, and I agree:
To erase all settings on a Mac, use the "Erase All Content and Settings" feature available in macOS Monterey 12 or later. This option securely removes all data and settings while keeping the operating system intact, preparing the Mac for a new user.
Erase your Mac and reset it to factory settings - Apple Support
if you used a different method, you may have erased too much, including parts of the "Secure Enclave".
this could require a Revive or Restore of the firmware, which require other similar Mac (or a service visit)
How to revive or restore Mac firmware - Apple Support
My M4 ran into an os upgrade problem
