Login to my macbook doesn't work when iput myappleIDand password
I have given my MacBook 2010 to repair recently and they told me they have to install new software. They wanted to login in after i gave them my login details, but it didn't work. Iam sure that my login details were correct however it says that-either of it its wrong. I tried to change the password but still the same
iPhone 7, iOS 14