Will the Samsung Galaxy S4 from UK be compatible with LTE in the US?
How can I take advantage of LTE on my Samsung Galaxy S4 purchased in the UK? I recently got a sim card for my S4 from AT&T and it is saying that it is under HSPA but I was told it is LTE compatible. The model number is GT-i9505 for this UK version. I understand this will be under non-certified services which will not allow certain features but that it is at least LTE compatible. It works fine with HSPA but I'm wondering if I need to update anything with my plan and services or the phone itself to make it fully LTE.