I have an early 2011 MacBook Pro running High Sierra 10.3.6. I’m getting the “no entry” symbol when I boot up. I have tried all of these things Resetting SMC Resetting PRAM Pressing “Option” when booting Pressing “shift + control + option” when booting Pressing Command + R when booting Pressing Option + Command + R The results are that I’m able to get to Internet Recovery and the loading bar completes, but then when it should move to the Utilities screen it doesn’t. Instead it sits at the Apple icon with no loading bar. I let it sit there overnight and it still did not move on to the Utilities screen. Then I removed the hard drive and placed it in another MacBook Pro. Hard drive booted up fine there. Then I replaced the hard drive cable but I’m still getting the same result. Seems to be a hardware issue but it’s not the hard drive or the hard drive cable. Anyone have any other ideas?