I have a MacBookPro Retina 13" early 2015 and I can not enter the boot options. The Device is running OS X El Capitan.
I have tried the following things with no luck:
Attempt 1 - Hold the Option
- press and hold left option right after hearing the chime
Result: Black Screen, I need to press and hold the power key to make the device boot.
I have also tried this with an external keyboard with the same result.
Attempt 2 - SMC Reset
- Reset the System Management Controller by pressing and holding option+command+R+P right after the chime, until the next chime.
- Retry Attempt 1
Result: Same as Attempt 1.
Any ideas what I could do?