mob. hit charging problem

My mobile is not supporting max player, wakeman.
See on screen is that yor memory card have data but invisible. Please solve my problem

Sir mera mobile sony xperia c he. Isme back speaker me fatne ki avaj arhi he.mobile ko mene 4 mahine pahle snapdeal se liya tha .iska mere pas bill he usme 1year warranty he

There is a dead black pixel on the screen of my Sony Vaio Laptop which is under warranty till april' 2016

Kindly let me know when to bring the laptop and where

Regards

i bought xperia c4 on 24 june 2015,it was very good mobile but after one year from few days i suffer touchscreen problem automatically in my mobile.even those who have c4 mobile also suffer the same problems. SO I WANT TO KNOW WHAT IS THE PROBLEM WITH C4 MOBILES AND COMPANY WILL REPLACE OR COMPENSATE?