Hi,
So sorry that the android 9.0 only work for i.MX8 and i.MX8M series, not including the i.MX7D. If have update I will tell you and you also can see it on nxp website.
Hope this can do help for you.
Have a nice day
Rita
If Android 9 is not supported, is Android 8.1 supported on IMX7D ?
The p9.0 release for i.mx7d will be public in two weeks.
There seems to be some confusion, what Rita Wang is saying in below comments seems to be in conflict with this information.
As the G.Y.CHEN said above the p9.0 release for i.mx7d will be public in two weeks.