Power\lock button does not working

[L0g1t3ch23]

I was at a pool today with friends, and decided to jump into water with my xperia Z and everything was fine, i was in the water few seconds then i got out and hour later jumped again for a few seconds. Everything was.just fine and after 2-3 hrs power/lock button stoped working. The only way to shut down the phone is by voluming up which did started to work like some sort of replica of power button? Should i bring the phone to retailer for fix or this could be softver problem bcause i didnt made an latest update?

Sorry for bad english and pls help. Thank you

[spidgorny]

Any estimation about the repair price if I were to send it to Sony for repairs?

At least the magnitude of it?

[andyactive]

You need to give it time. Open all the ports, memory card, sim etc. Put it under a low heat spotlight and leave it there for a day.

[outlawbl]

I have the same problem with power button...i think its in pushed state all the time so volume up works like power button...will i fix it if i change buttons flex cable?