I used to use an IPhone 7+ for my monitor. When I fired everything up the iPhone would have a little rectangular box pop up on the right hand side that said Calibrate Compass. Now that I have switched my monitor over to a 5.5” Crystalsky that box no longer shows up. Even though the monitor says home point updated on startup, the map is now “blank” with a red arrow that shows the updated home-point. With a blank map I have no idea where that homepoint really is. I wanted to recalibrate the compass but I can’t figure out how. I have looked up all settings but I just don’t see where to calibrate the compass. I do see where to calibrate the remote control but that is not the same as the compass as far as I can tell.