I have a MBP 8,3 running on High Sierra, lately when I start or restart my MBP it always start as on photo attached, only solution is starting with Alt key and selecting High Sierra.
I have never installed any Windows and the screen looks like a DOS command, no reaction on pressing any key!
Any idea what's going on?
PRAM battery may be dead, PRAM holds the name & number of the startup disk for one...
Have you done a PRAM reset, CMD+Option+p+r...
http://support.apple.com/kb/HT1379
In fact, do 3 in a row, takes a bit of time.
Intel-based Macs: Resetting the System Management Controller (SMC)...
PRAM battery may be dead, PRAM holds the name & number of the startup disk for one...
Have you done a PRAM reset, CMD+Option+p+r...
http://support.apple.com/kb/HT1379
In fact, do 3 in a row, takes a bit of time.
Intel-based Macs: Resetting the System Management Controller (SMC)...
PRAM reset resolved my problem. Thank you.
Great to hear, take care my friend! :)
High Sierra boot problem - black DOS screen
