pastrychef
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- Joined
- May 29, 2013
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- Motherboard
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I tried with the EFI Unified R5.1.7 (Catalina), everything boots nicely but the update couldn't be installed.
View attachment 448119
Then I thought maybe you meant the newest Clover EFI for High Sierra and now the machine is in boot loop and I can't go to the OS anymore.
No, just use 5.1.7. Please boot in verbose mode and post picture of where it stops.
It may also help if you re-do your USB installer and/or switch to a different USB flash drive.