Sony — Sony xperia z3 having many problem

Address:

Mumbai City, Maharashtra

I have bought Sony Xperia z3 .From the next day i have been suffering from this phone.the phone is unable to update on wifi. whenever i update the phone, its operating system gets corrupted. Many times its not even capable of downloading the new update. Now i m tired of visiting your service centers.I have visited them almost 6-7 times .Now this phone giving me new trouble, its headphone port is not working.and also its unable to install the apps like instagram as well as many apps like gmail.Most of the times all apps gets automatically stop and get corrupted . please help me my phone is in warranty. please response to the