Hi guys. My wife has been complaining that her iPad miniR is so slow now when she on the cellular network. She said it started last month when this pop-up keeps coming up telling her that she needs to update because there was a change in the cellular carrier. We have the free 200 MB with T-Mobile with no additional data plan. When we first got the mini Retina this past December, T-Mobile LTE would show at the top after turning it on. When I decided to look at it today, it just shows T-Mobile 4G instead, and is running very slowly. The APN under "Cellular Data" shows fast.t-mobile.com. And I have LTE enabled. When I disabled LTE, the 4G is still there. And when I re-enable the LTE, the 4G is there as well and not LTE. If anyone have any idea what is happening, I would really appreciate some insight. My wife doesn't even use her iPad mini Retina at her office anymore because she said it is just too slow. Thanks.