Press and hold the power button on your Mac for at least 10 seconds, then release. ![]() Apple suggests Mac owners experiencing these issues unplug external devices, attempt restarting, reset the SMC, and reset NVRAM or PRAM. Affected users saw their Macs get stuck displaying a black screen after attempting to install the new software.Īpple has now addressed this issue in a new support document that provides instructions on what to do if macOS Big Sur can't be installed on a 2013 or 2014 MacBook Pro machine. ![]() ![]() Following the release of macOS Big Sur last week, a number of 20 MacBook Pro owners found that the update bricked their machines.
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