I have bought a Xperia L set only 7 days ago. Didn't use at all. Just charged for one time. Due to internet connection problem didn't use at all. It's was power on. Just today I've inserted my SIM card and switch on the phone. Since then white vertical shaded lines appeared on display. There are 4 vertical thick lines and hundreds of horizontal thin lines. Display is readable but got the problem. Switched off the phone and charged but no change. What's the solution? Brought it from outside of my country so no warranty support here. Is it repairable? Give me any soultion.