I have an iPhone 5 w/ a personally trimmed at&t sim card on straight talk. Works well enough for personal use. The other day after adding my monthly 45$ "plan" I got LTE signal, instead if usual "4g". Didn't even know what it was, so I asked around lol. They were right it is lightning fast! Definitely noticed major speed increase. Lasted a few days, then I rebooted phone and LTE is gone and has been for days. Why did I suddenly get it? Why is it gone? How can I get it back? Thanks.
См. статью: IPhone 5 LTE signal on straight talk?