Hi all. Hoping somebody can clue me in on why my three Convoy C8+ flashlights modes cannot be changed. I did post about this before but got no responses. I can understand that there is the occasional rogue light showing a fault, but all three? I have set the lights to advanced mode but cannot seem top change the mode to the one I want. I'm not at all displeased with these lights but the number of levels I need to go through, including the annoying (to me), strobe, bicycle and SOS modes is kinda annoying. Currently I cant get the light to go into the programming setting. I've tried from 10 to twenty half presses to no avail. Really would appreciate some help with this.