For a couple months now (during which time I've tried ~20 ROMs), I can receive & make calls fine, receive & send emails fine, sync fine, everything is fine except I cannot send SMS. I've tried HandCent but it didn't work either. I have 15 seconds of logcat I can't understand at all - can someone help?
And is this the best way to isolate the problem or should I be trying something else?
(click image to enlarge)

Edited to add confusing APN logcat messages.

Why does it want to get Neighboring Cell IDS? There are hundreds or thousands of messages where it tries but gets denied. Is this like a worm attempt being blocked?




With those APN=null messages, does that confirm your concerns about it being an APN issue after all?