I get that message after entering the pin on the SIM lock screen after a reboot.
There is no signal until I enter the correct pin and press enter...then a flood of new SMS notifications will pour in.
I would check to see if it is SIM locked or similar...for a few days on one cm10 build or another my phone would SIM lock itself in the middle of any activity and kill my radio...
Factory reset/data wipe and flash with newer ROM cleared that up.
Rom: cm10 10/11
Kernel: kt747 10/9
SIO / KToonservative
-50MV on all steps
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