General fixes

General fixes

Information

Below information on common fixes for issues with Macbook/Mac OS based laptops.

Slow Mac, or got a weird problem?

Please try these common fixes for various random issues with slow performance of other odd problems.

Fix permissions.

  1. Go to the Go menu, select Utilities, then Disk Utility.
  2. Select the main HDD, and click Repair Disk Permissions.
  3. Restart.

Further info
Fix permissions video tutorial

Reset SMC

If the above doesn't help (or the machine wont power on), reset the SMC.
http://support.apple.com/kb/HT3964

Reset PRAM/NVRAM

  1. With your Macbook turned off please begin by pressing power button and immediately holding the keys Option, Command, P, and R keys simultaneously.
  2. Keep these keys depressed until you hear the Mac restart chime.
  3. After the the restart chime has been heard release all of the above keys.

Run Apple Hardware diagnostic

Also test the hardware with Apple Diagnostics:
http://support.apple.com/kb/HT5781

  1. If powered on turn off your Macbook completely.
  2. Then power on whilst holding letter D until the hardware diagnostic comes up.

(older Macs before June 2013 have Apple Hardware Test http://support.apple.com/kb/ht1509 - same command to start)


    • Related Articles

    • Reset PRAM or NVRAM to fix issues

      Problem: Macbook doers not hehave as expected or randomely eg. sleep/wake or screen glitching issues. Resolution: Note These steps do not apply to Apple Silicon Macs, PRAM is not user esettable on these machines. Shut down your Mac. Press the power ...

    • Mac OS – Repair disk permissions

      Problem A customer is experiencing some problems with their Mac which may be the result of faulty disk permissions. Resolution Click Finder icon on the dock. Click Applications in the Finder side bar. Then open Utilities > Disk Utility. Then click ...

    • Reset the SMC on Mac

      Problem You need to reset the SMC on your Macbook because it is not turning on or has other malfunction. Resolution Important! It is not possible to reset the SMC or PRAM on Apple Silicon Macs using the steps below. No known method exists as it is ...

    • Run First Aid to Repair Mac or MacBook drive permissions in Recovery Mode

      Information It may be necessary to repair the drive data and drive permissions of the Mac or MacBook to restore proper operation. This is best done from within the recovery environment to avoid problems. Steps Boot into Recovery Mode first. Within ...

    • Apple - Run Apple hardware diagnostics for Macs

      Problem You need to run a hardware diagnostic to check for hardware faults. Applies to Macbook Resolution Most Mac models purchased from late 2020 onwards will be Apple Silicon based hardware. If the Mac has been purchased before this time it might ...