If after full flashing with smart moto didn't help and your phone is not starting then you can do a PDS repair and full flash and phone should start.
This is not your case. If the PDS zone would be corrupt your phone would not start at all.
The fact that you have trouble turning on the phone indicates a hardware problem.
The problem with messages full and camera not working comes from the fact that the software in the phone is not compatible and incorrectly ad******* the memory. The solution is finding the original version of the phone which was released with it and that would solve it. In some cases you might have luck with another version as well.
On the other hand if the physical memory is damaged then of course you will not find any version of soft to fit and the phone will say messages full and the camera won't start as the memory cannot be addressed.
Motorola often behaves similarly (jumps back in the menu) when the camera itself is damaged or the flatcable connecting the camera and mainboard is interrupted.
I just today repaired a message+camera problem phone with the software posted here: http://forum.gsmhosting.com/vbb/show...09#post2570209