How do I switch back to the Japanese store on my iPhone?
I downloaded a free app from the US store last week. I live in Japan and my credit card is Japanese so when I try to update my apps (PicFrame) I get the error message that (Your account is not valid for the U.S. store. You must switch to the Japanese store.)
How do I switch stores on my iPhone? Or, must I switch stores on my iTunes on my computer?
I think I have already switched stores on my computer but it hasn't yet changed on my iPhone.
Any help would be appreciated.