Xiaomi India — Mi 4i motherboard has stopped working in 3 month after repairing

Address:	226028
Website:	mi.com

I bought mi4i since an year ago and the phone had ringing problem so that i gave it to the service center located at sector -f aliganj near gadha bhandar. They changed my MotherBoard and after 3 month MotherBoard stopped working...they are not taking there responsibility. Because My warranty has been over.. and they are saying that it is an electronic product it can be stop working at any time ...