Can get 3G but no LTE in LTE coverage area L720
Alright, I've tried searching the forum but with over 100 pages I've given up. I have a Galaxy S4 L720 (non-triband) that I've activated with Freedompop and am getting 3g data with. Freedompop has LTE and I'm in Irvine, CA which has a strong LTE according to the Sprint map (as well as Spark). From my understanding, there are no outages in my area. I cannot for the life of my get LTE on my phone. Here's what I've tried.
1. Updated Profile and PRL.
2. Factory reset.
3. Factory reset from dialer code ##786#
4. Using dialer code ##56# to change settings to LTE only mode. With this I get no signal at all.
5. Removing the proxy by changing settings to 0.0.0.0 and port 0.
6. Removing the battery and sim card.
I did flash the official Cyanogenmod before activation but I went back to stock before I activated on Freedompop. I bought the phone used with a clean ESN. At this point I'm probably going to give up and return the phone. If there's something I haven't tried yet please let me know.