Hi,
I have an A5X Max+ TV Box that is partially working using Firefly Station-m1 image. The HDMI output in this box is flickering but it is fine as I only access it through SSH. The WIFI and SD card slot is not working. From the past few days of reading, I think the issue is the SDIO that is not correctly defined in the device tree. Hope someone has the same box and can share how to properly define SDIO in the device tree or if the DTB under /boot is working.
Attached is the DTS file extracted from android image and the DTS I use to update the box's DTB.
rk3328-evb-avb-android.dts
rk3328-evb-avb-armbian.dts