Nokia India — my nokia lumia 920 device 3rd time repeat problem

Address:

Parbhani, Maharashtra

I have an nokia lumia 920 divice purchace after 1 year, suddunly one day may handset was fully over haet and goes dead so iam visited nearest nokia athorised service center and submited handset for this issue and after 20 days nokia care prividing me change 920 handset replace but there are same issue in handset same day so resubmiting me this divice in nokia care center and agian after 25 days my handset is in repair coindition but this time handset is very bad bihaviure like than on dispay is smily show so pleas suggest me what can i do...