Wont turn on after failed update...

[Roxas]

So i tried updaing my device via PC COMPANION and then it failed , after that i tried to turn on my device and it keeps telling me to retry and then just goes black , i tried to repair it via PC COMPANION but it also FAILS

and i cant do the Power up button + volume button because the volume buttons are broken , cuz u said ur phone is WATERPROOF which clearly isnt cuz when i just dipped it into water the volume keys broke and didnt work after that.

[Thommo]

If your volume keys don't work then you need to seek further help from Xperia care http://www.sonymobile.com/global-en/support/contact-us/ or return it to the place of purchase