Let’s check the possible fix on Mac stuck on blank white screen problem during installation, upgrade, and downgrade macOS or start Mac system (Taking too long time on startup). Just like Apple iPhone logo screen, a blank White screen on Mac frustrating millions of users for many reasons that we can resolve own self. Otherwise, hardware problem obliges additional experience and call to expert or help from the Apple store.
Some users are expecting blank White screen on Mac manage configuration on every single startup. But it’s not true for the longest time, because Mac is known for speed & performance. Let’s fix.
Help in Device Types: Macbook, iMac, iMac Pro, MacMini, MacBook Pro 2018, MacBook Pro with Touch bar, MacBook Air
5 Methods to Fixed: Blank White Screen on Mac Problem
Method 1: Boot up in safe mode [Mojave & earlier macOS]
Prerequisite: macOS allow to safe mode on boot up.
This process Check you disk and repair correct issue automatically regarding software error.
Shutdown Mac, Now Press power + Shift key at once, until you see Apple logo.
Once turn on Mac in safe mode, Restart from Top Apple menu > Restart.
Method 2: Fix by restore OSX from Disk Utility
Press and hold down Command + R + Power button at once, until you see power up, Now Select Disk utility.
Select your OS from the left pane and First aid from top tab.
Click on run button from the popup, after verify it will repair disk problems.
Method 3: Reset Memory: PRAM (Parameter random access memory)
PRAM store important Mac’s system settings – Clear Mac RAM
Shut down your Mac, then press and hold Option + Command + P + R + Power button at once, While booting your Mac.
Lift up all the fingers at once, next screen doesn’t appear on screen but in the background, it will reset settings data (Back to default mode).
Method 4: Restore MacOS
Shut down Mac, Then start Mac with the power button,
Next, Press and hold Command + R during startup screen
Now, Disk Utilities windows will appear on screen, Click on Reinstall OS X.
Method 5: Hardware issue Mac Mojave or earlier macOS
For this matter, there would be a serious hardware issue. So Check Device warranty, and try contact nearest apple support center for your fix.
Above all are the technically right solutions that work for repair Blank white screen on Mac problem in different ways depending on user’s causes.