So at home I get great reception, but at work I continue to get horrible reception, It sounds like you might be on to something, prior to this update the lumia worked fine switching between LTE and 4G, after update while it indicates LTE the reception is horribl, then non existant while in my work building, without the ability to try other bands such as 4G, 3G or even EDGE, I can't tell if its a tower issue or not. on my previous iPhone,i was able to switch manually. NokiaCareUS just told me they will get back to me, this was on thursday. hope they find an answer soon. phone is useless at work.