I've found that the Keyguard option doesn't work for everyone. However, since you are on ICS, I have a guide that might help you. It might be a bit confusing, so please let me know if you have any issues.
Since you aren't rooted, you will be restricted to just the Pin/Password reset options. If you choose to root, you can then toggle the Pattern Lock if you desire.
I'm aware of several issues with JellyBean. The LTE availability is actually a false positive. It will only work with CM9 and AOKP.
I am aware of this issue and am investigating solutions.