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Helpful answers
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Oct 22, 2016 8:56 AM in response to mtek_00by OGELTHORPE,★HelpfulIt would be helpful if you indicated the EXACT model/year of your MBP and the current OSX.
Reset the SMC and the NVRAM:
https://support.apple.com/en-us/HT201295
https://support.apple.com/en-us/HT204063
Then try a safe boot:
https://support.apple.com/en-us/HT201262
Ciao.