I flashed your 1.5.3 maxsense beta and none of my call functions work.
I installed the sprint carrier cab and still nothing.
First time this happened. Try flashing back to your 1.5.2 same problem.
When I go to the windows key and select the phone settings I get "No service" any idea why this is happening.
I also lost my sim card a while back. so its not in the phone.