As there is HUD Head-up Display function on some models of BMW 5 series F10 F11,  some buyers want to know if HUD still work after installation of aftermarket big android screen,   in fact, the installing KOASON display car stereo not affect original radio functions,  HUD function will still work after installation. 

sometimes some buyers will meet the following problems such as HUD functions not working, in this case the problem is on the wiring connection and placing, which need to be double checked.

Q:
Head Up Display (HUD) no longer available

Hello,
thank you very much for the fast delivery.
The display works well, ID8 is very pretty,

but the head up display is inactive and cannot be selected (photo),
The previous Android display showed no problems

Best Regards

A:
        Installing the Koason Android screen on BMW F10 F11 will not affect the original car Head Up Display (HUD) function, because our screen retains all the functions of the original car. You need to check the wiring, because the Android power cord is installed on the back of the original car CD host. If Android screen wire is not placed properly, it will be pressed by the original car host, which will cause various problems.
You also need to check the optical fiber. If the optical fiber is not switched, it will also cause the original function to be abnormal.Click for details

Note: The Head Up Display (HUD) function can only display the original information. What can be displayed originally is still displayed. After installing the Koason screen, the Android content cannot be displayed on the Head Up Display (HUD).

Customer response:

     HUD is working again Hello, many thanks for the quick response, I know the two optical cables, it's my second display, I removed the display twice and connected it carefully, then the HUD suddenly started working again, I'm sure the cable is clamped or something now everything works, very nice.