Quote:
Originally Posted by r1cero
So your idea is to use hdmi for mirroring to rear screens and android screen mirroring for front screen but at the same time. Perhaps, you should check with manufacturor if that double streaming at the same time is possible. And whether there would be any lag between front/rear.
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Not exactly: my idea is to use the android box through CarPlay on main screen, and use HDMI mirroring to mirror the same thing on back screens. You have the options either to use built-in apps, basically any android app such as Netflix or YouTube since it's an android box, OR to use screen mirroring and therefore to "cast" whatever you want from any phone/tablet, and this supports both android but also iOS (since the box also supports airplay mirroring)!
About using both "ports" at the same time (CarPlay + HDMI): It is possible, as confirmed also by the YouTube video I posted, and there is basically no lag, as also the video shows (see here, from 6:20). If you see, it even allows you to "exit" the CarPlay view from the front to change settings in iDrive (es: climate controls or navigation), and then get back to CarPlay view, while in the back you keep watching the video/CarPlay all the time with no interruptions! And it even supports a remote control to give a completely independent access from the back!
)
So it is indeed a working solution.
The only question is: is the updated MMB 11 Plus box with HDMI port compatible with BMWs?
It seems BMW is "finicky" when it gets to CarPlay dongle compatibility and this is why there is a 'BMW specific' version on their website:
https://www.carplaymmb.com/products/mmb-bmw-android-box
This version works, but doesn't have HDMI port for back screens.
Also there is a NOTE that says:
This product only works for BMW models with wireless Apple CarPlay from factory.
Compatible with models equipped with iDrive 6 and early iDrive 7 software. Late 2021/2022 BMW models are not compatible yet.
The updated version has indeed the HDMI port and run also Android 11, but doesn't mention BMW compatibility.
Maybe a v12 is needed that both has HDMI port but also supports BMWs? But this proves is definitely technically possible, since there is a BMW version working!
I will ask them via support.