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Helpful answers
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Jul 7, 2015 6:58 AM in response to SleazySockby thunderzzz,Try these steps:
Start your Mac with the Shift button pressed.
- press the Power button
- Right after you hear the startup tone, press and hold the Shift key
- Release the Shift key when you see a grey Apple sign and the progress bar below this sign
- Once you see Desktop, start a Disk Utility scan to detect and repair file system errors (don't forget to choose your main hard drive)
- Click on Verify Disc and then, if asked to fix problems, on Repair Disk
- After this, click on Verify Disk Permissions and then on Repair Disk Permissions
- After the process is finished, shut down your Mac and turn it back on after about 30 seconds
Apart from that, take a look at this Apple article and follow the instructions on Resetting NVRAM shown there: How to Reset NVRAM on your Mac - Apple Support
Take a look at the steps suggested by Apple in this article:
https://support.apple.com/en-us/HT204267
Hope this helps -
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Jul 7, 2015 7:16 AM in response to SleazySockby OGELTHORPE,If a SMC reset does not breath life into your MBP, make an appointment at an Apple store genius bar for a FREE evaluation.
https://support.apple.com/en-us/HT201295
It does not hurt to try it more than once.
Ciao.