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No-Mouse, Quick Tips, Troubleshoot

Troubleshooting your Mac of SMC and PRAM/NVRAM

Troubleshooting your Mac of SMC and PRAM/NVRAM

Troubleshooting your Mac, The first things I’d try are to reset both the NVRAM and SMC in that order. Before following the steps below, ensure you have no external hardware connected and make sure you use the built-in keyboard.

Reset the NVRAM

  • Shut down your machine. Yes, a full shut down, not just logging out.
  • Press the power button and then press the commandoptionpr keys. You have to make sure you press these keys before the gray screen appears or it won’t work.
  • Hold those keys down until your Mac reboots again and you here the startup chime.
  • Let go of the keys and let your Mac reboot normally.

Reset the SMC

  • Shut down your computer
  • Keep the power cable plugged in.
  • Press at the same time shiftoptioncontrol (on the left side of the keyboard) and the power button and keep all these pressed down for at least 10 seconds.
  • Let go
  • Turn your computer back on with the power button.

Boot into Safe Mode

  • Fully shut down your Mac
  • Restart your Mac
  • Immediately press the Shift key and keep it down
  • Let go of the Shift key when you see the login window (NOTE: If you have FileVault enabled you may need to log in twice).
  • Take a note of what happens (i.e. use it normally and then let it go to sleep for several hours and test to see if it wakes up okay)
  • If it works okay, exit Safe Mode by restarting your Mac as normal. If not, force start your Mac again.
  • If your MBP still doesn’t wake from sleep properly, then it’s time to test your hardware with Apple Diagnostics.

Run Apple Diagnostics

  • Fully shut down your Mac
  • Restart your Mac
  • Immediately press the D key and keep it down until you see the Diagnostics screen appear
  • Wait for Diagnostics to finish (this typically only takes a few minutes)
  • Once complete, one of two things will appear on the screen:
  • a No issues found message
  • a brief description of any errors found plus further instructions
  • If the diagnostics test does find errors, take a note of what they are

Happy Troubleshooting your Mac 🙂

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Written by Ranjan - 9248 Views
Tags | quicktips, Tips & Tricks, troubleshoot
AUTHOR
Ranjan

Namaste, My name is Ranjan, I am a graduate from NIT Rourkela. This website is basically about of what i learnt from my years of experience as a software engineer on software development specifically on mobile application development, design patterns/architectures, its changing scenarios, security, troubleshooting, tools, tips&tricks and many more.

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