Hello, There have been many articles about the Nokia Lumia 928 as being hardware ready for Verizon's Advanced Wireless Services network (AWS).
Nokia received permission from the FCC: ID QMNRM-860 (Approved Feb 22, 2013) for an in the field software upgrade that would enable LTE band 4 (UL 1710-1755 Mhz, DL 2110-2155 MHz) on the Nokia Lumia 928.
Usually, there is an answer on the Internet for any question one might have but I have researched this extensively and cannot find an answer to the question: Has there been a radio software upgrade enabling AWS on the Nokia Lumia 928?