HT204156: About the screens you see when your Mac starts up
Learn about About the screens you see when your Mac starts up
Q: i have a blank white screen when i start up my macbook bro
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Mar 5, 2016 12:55 AMby lllaass,What model MacBook Pro?
Maybe:
https://www.apple.com/support/macbookpro-videoissues/
Otherwise
- Try resetting the SMC and NVRAM/PRAM
Intel-based Macs: Resetting the System Management Controller (SMC)
- Try starting in Safe Mode
OS X: What is Safe Boot, Safe Mode?
- Boot to Recovery and repair the startup disk
OS X: About OS X Recovery - Apple Support
- If it is repairable reinstall the OSX
How to reinstall OS X on your Mac - Apple Support
- If you do not have a backup use disk utility to restore the internal disk to an external disk so you can try to recover data.
Then format the startup disk and do a fresh install of OSX
If still problem, make an appointment at the Genius Bar of an Apple store since it appears you have a hardware problem.
