Thats what i meant, to surround the USB port with epoxy, i´ve read that the epoxy can be used with plastic and metal, because its mainly used for plumbering. Although, the usb wire goes into the usb port, it doesnt cover its surroundings , so i think is not a bad idea.. Im grinding the teeth on the USB charger and it works excelent, i still need to apply a little bit of pressure when im removing the wire, but is not as hard as it was before.. so any other ideas?