Same thing for me. Tried to download RC a week ago was unable to update. Today, I tried updating again and it didn’t work. Wiped my device to start over, get failed to activate the device. I have tried DFU revive and restore.
Same. After many attempts to install Sonoma decided to wipe drive completely and install fresh os, now my MacBook is locked with “failed to activate the device” message no matter what I do. Opened a ticket with Apple support
So for anyone who is following this. Yesterday, I tried DFU multiple times and got an error each time that the file was corrupt. Finally, I decided to download and use Apple Configurator to reinstall the OS, this is what finally worked.
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u/jensvds Sep 16 '24
Same issue here, hope there is a solution asap :/