I purchased a EONON head unit and had it installed in my BMW F30 and for the last two years I've tried to get it to function correctly…I'm now having it removed…the unit will not save any settings, in particular the time and date…it crashes on a regular basis requiring a restart especially when using apple CarPlay via the usb dongle the memory card slot has dropped inside the unit and swallowed up 3 memory cards, the touch screen freezes. The factory settings menu has changed it's self partially to Chinese the split screen function doesn't work…the Bluetooth keeps dropping out and the list goes on and on…if anyone is thinking about purchasing one of these after market head units. The do not buy one of these