It started yesterday when I flashed CM10.1 and then AOKP. Those were both fine, I was still able to get 4g with them, then I came upon a ROM on here that suggested I format my system before installing. So I did that, and ever since then I have not been able to get more then EDGE. I have since returned to stock rom and other roms and they all yield the same result. I have noticed my IMEI was at 0, so I did end up injecting that, but still nothing. My signal strength right now is at -59 dBm. And unfortunately my Mobile Network Type reads: Edge:2. I can provide you guys with different details such as my APN and all if you need.
I also tried my SIM card on my other phone and was immediately able to get LTE on it.
Any help would be greatly appreciated.