Sorry late reply, as very late I saw your post.
You have two workarounds.
1) Your APN setting must be wrong, Automatic APN setting may not be taking correct APN values. Try manual entries as mentioned by Mobile Service Operators.
2) Install CWM and clear DALVIK CACHE and WIPE CACHE PARTITION. (not data). Reboot and check, if this does not help, that means the BASEBAND and RIL (Radio Interface Layer) from this KDZ, are not matching for your region or mobile operator. Try other previous KDZs but from your own or nearby region.
Very soon Artas182x is going to add only BASEBAND flashing in CWM and you can keep any ROM and flash any BASEBAND.
I have also made initiatives to get our devices supported by GETRIL (RIL installer app) and then we will be able to use any ROM, with any BASEBAND and any matching RIL.
For time being you should revert back to your previous rom and wait until some good news comes. Good Luck.
Dont worry, KDZ does not damage hardware