rhosek wrote:
I tried to restart it several times as well.
The device is under kid's 12y old Apple ID.
I know all passwords and account names for his and my parents AppleID on this MacBook Pro...
Nothing is matching / has been accepted by the MacOS for the update..
Any idea how to pls?
Thanks a lot,.
R.
try changing the psswd for the account and compare your results
Reset your Mac login password - Apple Support
Mac User Guide - Apple Support
If you can't reset your Mac login password
https://support.apple.com/en-us/HT212190
AppleID is different if that is your issue...
your AppleID
If you forgot your Apple Account password - Apple Support
One account for everything Apple - verify what devices are associated with your ID /Apple Account
https://appleid.apple.com