How to fix "No Service" after being dropped in water?
So I went to the pool 4 days ago, and I wasn't thinking and jumped in the water with my iPhone 6 in my pocket. After about 10 seconds, I realized and took it out, and powered it off immediately. Since then, I have left the phone in a bag of rice for 3 days. I thought this would be enough, but it wouldn't turn on after I took it out, even after I tried to give it a hard reset.
So today I opened the phone, only to find water still inside. I let it dry for 5 hours, then used cool air from a hair dryer to dry it out even more. After plugging it all back up, I rebooted it, and it works! However, the lcd screen is very spotty and the backlight is uneven, which I can live with.
Now the only problem is my phone cannot find cell service, it is stuck on "Searching...".
Also the battery is draining about 10x faster than normal, which is a pain. Does anyone know what I can do to fix this cell service problem? I am comfortable doing repairs with the phone, I have a lot of experience. What can I do to get service again?