

Run Apple Diagnostics or Apple Hardware Test.Launch Single User or Verbose Mode with Terminal.Power up your Mac with the Startup Manager and select your Startup Disk Manually.Quick Tips Try These Steps to troubleshoot and fix a Mac Stuck on White Screen If your Mac fails to start-up regularly, try these quick tips to troubleshoot your problem(s). This white (or gray) screen means that your macOS or OS X can’t start because of problems with the system’s hardware or software. If this situation sounds like you or something similar, you are not alone! But then, it would get stuck on that white screen (after the chime)–no Apple logo, no processing circle, nothing, nada! What’s a girl to do? My Mac would turn on, I hear the chime and see the white startup screen. Is your Mac stuck on the white startup screen and won’t boot up or turn completely on? Tryin to boot up normally, but your Mac or MacBook won’t turn on or gets stuck on the loading screen, the startup progress bar, or the Apple logo? Wondering what to do when your Mac shows you the “white screen of death?”
