My phone, Samsung Nexus S has recently undergone water damage (30 minute wash)
I have went to carrier, Rogers, and they will not take the damaged phone as it voids their policy.

I have several problems that have occured:
- Battery is wasted (will not hold charge)
- Half the screen will not work

It does not work in the red areas, but it does work in the not red areas.
- Wi-Fi is grayed out

I have posted this to ask if there is even any point of trying to fix the phone. Also if there is, how would I do so?
I have searched for local mobile repairs (briefly) but I have found none.

If you know of an repair shop near Owen Sound, or Toronto Canada, please let me know!

Should I open the phone, or whatever and look for the problem or what.

Any help is welcomed.