I would clean it real good. use a tiny amount of silicone or something similar to seal the very End of the hole, to stop it from leaking anymore, let it dry After it's dried good. clean it again, scar up the hole (more horizontally, than vertically) so your epoxy of choice will stick, and use devcon ,JB Weld... if it doesnt work you can re do it & fill it up untill that whole cavity is full if needed Sent from my SM-A505U using Tapatalk