I'm continuing to have 4g/3g issues even after the lastest update/fix that was pushed out in the last week. I'm lucky to get a couple bars on 4G, usually i'm at just a few bars on 3g (or less) and calls are breaking up and dropping. Connectivity for internet is very slow, even on wifi, and I find myself having to restart the phone regularly. Any suggestions on how to "fix" this and get the phone back to where it was before the last couple of updates?