note 2 N7100 not registered on network
 

my note 2 N7100 after updating to kitkat 4.4.2 ca not make calls
when trying to phone a not registered on network message appears.
i restore the phone to 4.3 by recovery to4.3 but the phone still the same
please help

first root your phone.
then repiar efs & write IMEI.
hope your issue will be resolve