Updating my MBP 15", 2.2 i7 8 GB (2011) with 10.10.3 and at reboot i got the flashing folder with question mark.
Option->Power booted and got the firmware dialogue. Entered the firmware PW and it booted up to userlogin.
Logged in and the installation continued.
Just saying, in case anyone else have the same experience.
Option->Power booted and got the firmware dialogue. Entered the firmware PW and it booted up to userlogin.
Logged in and the installation continued.
Just saying, in case anyone else have the same experience.