using a macbook pro. days ago there was a recent update on sierra. when i restarted it I got the grey screen with stop sign in the center. tried restarting smc and vram but it ends up with the grey screen. what to do?
Please help
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using a macbook pro. days ago there was a recent update on sierra. when i restarted it I got the grey screen with stop sign in the center. tried restarting smc and vram but it ends up with the grey screen. what to do?