Before installing the most recent ICS leak, my 4G was great. I got at least 10 mbps speeds and 4-5 bars of service all the time. I installed the ICS leak, and now my phone doesn't even connect to 4G. When I first powered on the phone after installation, it showed the 4G sign but it went away shortly and never came back. I tried to wipe and reflash, but I still have this problem. What could I do to fix it?