good moring sir , i have buy k30 karbonn mobile from trivandrum.near east fort 3 mounths later. imei ********0069093, ********0204096 . ref no********-1/2010. on 30/10/2010 night , while calling display not there. now also not there , no type of damage at, that time, so plese find solutions for this kind of problems facing and key words u j n were not working some times. am waiting for fast reults. and sercive center in trivandurm , contact number also. my no is ********35 kerala..