After Big Sur beta updates screen shows black with locked icon and input

App & System Services Core OS
umesh_sharma04 OP
Created Aug ’20
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Hi

guys I’m in worse situation right now as my computer auto installed updates from Big Sur beta and now it shows locked icon with input where I enter red my computer password but it doesn’t accept it.

i tired to enter my iTunes password but doesn’t show any error or anything. It’s a bit frustrating for me right now so please anyone could help .

worse part is I didn’t took any backup of my computer so I’m kinda destroyed

here is the screenshot prnt.sc/tug5tt



Replies  1
Boosts  0
Views  459
Participants  2
macExpert OP
Aug ’20
The picture there is a lock icon requesting a firmware password. Ask the person who set up your computer to tell you it or enter it, or go to apple store for them to get it fixed. To disable, go in recovery, startup security utility, disable firmware password. You will need it to get to recovery. If u don't know your firmware password you are really stuck.... only fix is going to an apple store

see this article
https://support.apple.com/en-us/HT204455
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After Big Sur beta updates screen shows black with locked icon and input
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