Water damage and phone won't come on after battery replacement.

I dropped my phone in water and the back glass was broken. I soaked in rice and blow dried it. about 12 hours later i tried cutting on and the apple logo appeared clear and like usual. A few seconds after the apple logo popped up it went blank and never would cut back on. I just replaced the battery and cleaned all connectors with alcohol. Still won’t cut on. Any ideas or remedies at this point?