Your Mac is running on the latest version of macOS and facing the problem of not saving data for volume control level, Screen resolution, Disk selection, and useful information that should be stored in memory when your Mac(MacBook Pro, MacBook Retina, iMac, iMac Pro) not on plugged with power or Shutdown. Apple store all the settings and data set by the device owner and not should be changed when it will come to work. Here I explained about NVRAM (non-volatile random-access memory) & PRAM (Parameter RAM), in which case you should reset and how to do it.
Note: Data Storage way in NVRAM, setting, and options might be different depending on which Mac model you have. But you can reset NVRAM/PRAM on Mac OS X using the below-given steps. Both the RAM store the Same information.
- NVRAM:- nonvolatile random-access memory
- PRAM: – Parameter RAM
In which case you need to Reset NVRAM memory and the whole setting
- > Selected Screen resolution not saved
- > Speaker volume not saved
- > Disk selection should be changed on each startup
- > Kernel Panic information not be saved
Step to reset NVRAM on macOS: MacBook Pro, MacBook Retina, iMac, and other
In this process, you need to use shortcuts for NVRAM setting reset or PRAM resetting.
M1 Apple Silicon MacBook Doesn’t need to Reset PRAM/NVRM, Because This M1 Macbook Reset Automatically when you Restart your Mac [Apple Logo from Top Mac Menu > Restart], Follow the Below steps for Intel MacBook Pro/Air.
- Step 1: Put your Mac Shutdown, Go to “Apple Logo” > “Shut Down“.
- Step 3: Turn it on, “Use Power Button” to “start your Mac”.
- Step 4: Before hearing the startup sound on your Mac device, Press and hold “Command + Option + P + R”.
Note: Windows Keyboard on Mac users can use this keyboard Shortcuts: “Alt + Windows + P + R“.
- Step 5: Wait to restart your device automatically, continuously hold keys and release all the keys after listening to the startup sound on a second-time release of all the keys.
In the whole process, your Mac restarts two times.
Now you erased all the primary data that was saved in NVRAM memory as a Speaker Volume, Screen Resolution, Startup disk selection, and Time Zone information.
Note: Reset NVRAM might resolve the Wi-Fi connectivity issue after update your OS X.
→ Using the Same steps you can also “Reset PRAM” (Parameter RAM) on Mac.
How to Reset NVRAM/PRAM/SMC on M1 Silicon MacBook
Okay, Here Apple M1 Silicon MacBook Pro/Air doesn’t allow to reset PRAM & NVRAM and SMC as Well [Clear RAM] on Users Request, This Mac Machine Reset and Re-Built all the Data on Every startup of your Macbook. To reset NVRAM and PRAM On SILICON Mac, Restart your System.
- Apple Logo from Top Mac Menu > Restart. That’s it.
reset NVRAM Not Working? What to Do?
If Startup Sound not playing or Keyboard Shortcuts for Reset NVRM or PRAM Won’t be responding. Try to follow these tips,
if your Mac Using “Firmware password“, Then these key doesn’t work. Turn Off Firmware Password from macOS Recovery, To Reset NVRAM on Mac, MacBook Pro, MacBook Air.
For Safari: Cookies Settings, Reset Safari on Mac and PC
Now you need to reconfigure all the settings erased by this process likes speaker volume, screen resolution, Start-up disk, and your Time Zone selection.
If you are not a success on Reset NVRAM on Mac OS X devices iMac, iMac Pro, Mac Mini, MacBook Pro, Air, and others, then you feel free to contact online apple support.