xperia z3 won't charge, lock and volume buttons frozen

[Kat3]

Hello, my 5 month old handset lock button stopped working and then I noticed the volume buttons weren't working either. Have plugged into the power and the phone won't charge. I cant find any tips on how to fix this. Getting very frustrated, please help!

[Thommo]

This sounds like a hardware failure of which I'm sorry to hear, but you would need to either return your device to the place of purchase or contact Xperia care and have your device inspected http://www.sonymobile.com/global-en/support/contact-us/