sprintでも○になってしまう事例があるようだ。
http://community.sprint.com/baw/message/356305
My iphone 4 only connects at 1xrtt (GPRS, little circle icon). Resetting the phone does not fix it. Went to the sprint store, the iphones there connect at 3G, mine side by side does not. Sprint rep told me there was nothing he could, to take it to the apple store, apple store tells me to reset my phone, which obviously does not fix the issue.
めも
