MacBook Pro 15" Mid-2012
After upgrading to El Capitan, strange things have happened. My USB ports were working - then things became sporadic, and then eventually nothing works. Devices I plug in show up in the system report but there is no activity.
My bluetooth mouse started acting sketchy but now has just quit.
My superdrive simply spits out discs as i put them it. Slide the disc in, it spins for a bit and it spits it out.
I used AHT and it just stops. It is testing memory gets "Total Time Testing: 19secs" and that's where it stops.
Suggestions and ideas?