Water Damage Repair Help Nexus 6

Hello everyone :D

So a couple weeks ago I took a unexpected swim with my Nexus 6 in my pocket, and haven't gotten it to work since. When I got out I immediately took the phone out of my pocket and turned it off, only to have it boot back into fastboot a few seconds later, turn off, boot to fastboot, and turn of again. It did this several times till it just stayed off. I took it apart, dried it, and cleaned it in Isopropyl alcohol and tried to turn it on but got no response no matter what I did. :crying:

I would consider it fried except whenever I plug it into my charger, the charging icon comes up like normal and even does the battery filling up animation. I replaced the power/volume button strip inside the phone hoping that it was the only problem, but it still would't turn on. I haven't replaced the battery yet because the charging animation shows it's holding charge, but loosing 40ish% after a week and a half of sitting there.

So is there something else I can do, or is it fried? I'm probably going to get a new battery to see if that improves anything, but I honestly don't know what more to do. If anyone has any ideas, I'd love to hear them.

Thanks in advance!