Currently Being ModeratedApr 17, 2013 5:56 AM (in response to jstanse)
You're leaving something out. An OS update doesn't lock your system.
If it is in fact locked from using icloud, the 4 digit code would have been created at the time of the lock by whoever did it. That's the code you need.
But, to confirm that's what it's looking for, at what point during the boot does it ask for the code? When you expect to see your login screen, or before you see the apple/gear?
Currently Being ModeratedApr 17, 2013 6:00 AM (in response to Imp68)
Thanks for the reply. I never had this issue and the person I bout the laptop from never mentioned it. It happens after the apple icon populates. I completed the os update. It rebooted, i completed my iCloud update, it booted again to my home screen, booted again, and thats when it goes to the lock screen. I've processed updates before and this never happened.
Currently Being ModeratedApr 17, 2013 4:18 PM (in response to jstanse)
It does sound like an iCloud lockout, since it happens after the apple logo. If it was a firmware password, it would ask before the apple logo shows up, after turning the system on.
I'm not sure what you mean by "completed my iCloud update". I've never seen an update that specifies iCloud. Where did this update take place?
Also, was iCloud logged in with the previous owners apple id? You would have seen it under the apple >> system preferences >> icloud. If you've never checked, than it sounds possible. If that's the case, it's possible the previous owner locked it remotely from the icloud website or an iOS device.
If this is in fact the case, try contacting the previous owner and ask. They would have had to create the 4 digit code at the time of the lock. If that doesn't work, then your only choice is to get it into an apple store.