Samsung Mobile — Galaxy Alpha Mobile Phone - Frequently hanging, could not be repaired by Samsung authorized service center

Address:

600040

I had purchased Samsung Galaxy Alpha SM-G850Y mobile on 9th Nov 2014 from Samsung Smart Plaza At Anna Nagar 2nd Avenue. My mobile phone frequently hanging while doing multi task like call conference, contact checking, sliding the top bar . I have contacted Samsung Authorized service center in Chennai Anna Nagar (HI TECH Solutions). They have tried following options but the problem could not be rectified even after 3 attempts - OS installation - LCD checking and OS re installation - Mother board replacement Service Request Date: 10-oct-2015 bill no: [protected] I had visited 4 times to Samsung service center but could not get resolution I am not able to use my smart phone for my professional use. I am highly disappointed and wanting replacement (new) mobile phone immediately. My contacts Mobile: +91- [protected] alternate no.[protected] Email: [protected]@yahoo.com