We have a Pentair EasyTouch control panel that works fine except the bottom row display does not light up. It seems like we can either buy a new motherboard (over $400) or try to fix it ourselves (found a post on here about people who have soldered on a new, inexpensive LCD but that scares me). Is there anything else possible? Is there anything new, like a way to control it via some sort of app on a phone? And how would we do that?