Edit: After half day, my wife’s Mac started having the same problem. I have then applied the solution that I found in the Apple
T-Mobile Finally Gets The iPhone And Sales Are Described As "Gangbusters"
Yesterday was the day a lot of Americans had been waiting for, T-Mobile finally offered the iPhone to its customers and of course demand was quite high.
T-Mobile CMO Mike Sievert said in a statement to AllThingsD that nearly all of the 3,000 T-Mobile stores around the country had a queue / line outside. Sievert also described their first day of sales as “gangbusters” he also added today’s explosion of interest is a clear indication people still crave Apple gear. Couple that with T-Mobile’s new Uncarrier initiative, along with a pretty sweet trade-in deal, and customers currently have access to one of the best iPhone deals around.
Finally this might mean that T-Mobile customers will be able to stay up to date with the latest iPhone and not have to wait for months.