This guide will explain how to replace the Auxiliary Port (headphone jack) on the LG Treasure.
Pull off the back cover from the phone using the groove on the bottom right side.
Remove the battery from the phone by lifting up on the bottom end of the battery.
Remove all 9 of the 3mm Phillips #000 screws from the digitizer.
Work your way around the edge of the phone, gently prying the digitizer off the phone.
Insert your finger nail into the groove under the Auxiliary Port and pry the Auxiliary Port out.