Progress bar stucks
When starting up Macbook Pro, the progress bar sticks ( a little before the end) and the logo gets more pale (screen is grey).
I tried:
- boot in safe mode
- boot in Recovery Mode
- reset PRAM
- reinstall OS X El Cap.
What should I do next?
MacBook Pro, iOS 9.3.5, Not sure if it's 9.3.5...