macOS Sonoma and macOS Ventura 13.6 were released with multiple serious bugs in their upgrade and boot process. This can result in a black screen boot issue for certain MacBook Pro models. The bugs include using the previously installed version as System Recovery, incompatibility between older RecoveryOS and newer firmware, and incorrect display refresh rate settings. Users can fix the issue by using DFU mode or upgrading to Sonoma. Data loss is not expected.
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What happened?What are the bugs exactlyWhat happens if I get hit by the bug? Will I lose data?What machines are affected?What versions are affected?What should I do?Share this post