crwdns2894164:0crwdne2894164:0
crwdns2894186:0crwdne2894186:0

crwdns2893792:0crwdne2893792:0 Jim Jost ,

crwdns2893800:0crwdne2893800:0:

I have the same issue.  I am third owner.  I tried to update OS.  Computer now shows flashing question mark file.  If I go Option/Power I need a firm ware password.  I don't have.  If I replace the SSD with High Sierra pre-loaded, will I be able to use the computer?

crwdns2892198:0crwdne2892198:0:

open