Apple ID verification code on macbook air
I have a Macbook Air, OS X 10.9.5 (13F1911)
I had to reset my password for Apple ID, and all went very smoothly, but now I get a message all the time that my iCloud won't work, I need to enter a verification code into my Macbook Air, and a verification number is sent to my iPhone, but I see no place on my MBA to put this verification number, so my photos are not synching, and I suppose nothing is.
MacBook Air, Mac OS X (10.7.4)