Check your USB cable for defects and if possible on other devices and also test your mains plug is possible on other devices, If these two items appear to be free from defects then In circumstances like this all we can advise you do is to either return your device to the place of purchase or contact Xperia care who will be or are best able to advise you http://www.sonymobile.com/global-en/support/contact-us/
I'm using Sony Xperia L but suddenly it not charging at all, when I get plugged into USB Cable not shows the light of charging and phone gets hot, Please help me what can I do ???
