Macs are usually pretty solid machines. But they arestill machines. Operating on layers and layers of ones and zeros. Something somewhere is going to go wrong. Usually, a restart or reinstall does the trick.
But what do you do when weird stuff starts happening that you can’t exactly put your finger on? Like the Bluetooth won’t scan or the battery percentage will refuse to update. It’s time to reset the PRAM and SMC.
What exactly does that mean? Read on to find out.
What Is PRAM (Parameter RAM)?
PRAM (Parameter RAM) is the memory that stores the default values for the nitty gritty details of your Mac, the core data, if you will. It contains stuff like the alarm clock setting, mouse scaling, start up disk, virtual memory and speaker volume among other things. To see a full list, check out Apple’s support page.
If there’s something wrong in any of the code on PRAM, it can have a big effect on your Mac’s performance. Resetting the core data to its default is a great way to restore things to way they are supposed to be.
The Last Resort
You should think of resetting PRAM as a last resort. Because it has to do with the core data of the OS, it might change some settings, or reset your data. So before jumping in to resetting PRAM, you should try some of these remedies first.
Force quit (Command+Option+Esc) all the running apps.
Log off and log back in.
Turn it off and on again. Not just restart, perform a hard shutdown.
Shut down the mac, keep it turned off for a minute or so. If you can, remove the battery for some time as well.
After doing that, if you’re still facing the problem, it’s time to reset PRAM.