HT201295: Reset the System Management Controller (SMC) on your Mac
Learn about Reset the System Management Controller (SMC) on your MacQ: My MacBook Pro when I start it it only shows a black screen I got it in 2013 so idk the model but the fan or something is working ... My MacBook Pro when I start it it only shows a black screen I got it in 2013 so idk the model but the fan or something is working a lot also when I turn it on can someone help me? more
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Jan 2, 2016 3:11 PM in response to Ericm16by lllaass,Assuming Lion or later:
- 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