If won't work, no way, take it to a repair shop

It's only water proof when all the ports - usb - earphone are closed
"The Pantech Element is waterproof against incidental exposure to water when all ports (incl. USB and earphone ports) are tightly closed, but is NOT designed or intended for in water use. Waterproof based on IP57 rating. "
see if it's under warranty to return defective