Iphone Help,

Hi My I phone had fallen in the water. I immediately dried it and then tried turning it on. But no use. I then read online about the rice solution. I tried it. But still no use. Then i put it awe thinking it was dead for good. However, two months later, i tried charging it. And it charged! All my contacts and music was still there. But then i forgot about it,again! Now it doesn't even charge nor turn on. I tried restoring it. It gave me error 23. At this time i get the apple sign but no charging screen. Since it had fallen in the water i thought i would change the battery. I did change the battery. Now it doesn't even go in restore mode as before. It seems like it is receiving power. Cause the apple sign is there. I really hope some one can help me with this! Would appreciate it a lot!