Thanks but I already tried a dif sim and left it two days under a strong sun (I kive in Portugal).1. Try a different SIM
2. Let the phone dry longer. Common wisdom is to stick it in a sealed container with dry (uncooked) rice and leave it for a couple of days, with the battery removed.
Good luck!
Thanks for the tip but Already did that, following a youtube tutorial. But I cant see any oxidation...Try cleaning the contacts. Maybe the water caused some oxidation and is keeping it from making good contact.