macOS Monterey clean installation failed on a iMac 18,3
Hello Community,
after 5 years without problems, I upgraded my iMac with a new SSD, because the fusion Drive had damaged sectors. After the upgrade macOS Ventura run for 5 days fine, but than I got 15min after boot and some work suddenly "blackscreen". After every boot.
All methods of clean macOS installations failed. NVRAM resetting also did not help.
My last method was a installation (macOS Monterey) over an USB-Drive.
But with the same result - 15min before the end the installation crashes.
Thank you for any help.
iMac 27″ 5K, macOS 13.1