Android 9 mouse not working

Compilation was successful referring to the https://wiki.radxa.com/Rockpi4/rockpi-android9 site.
Currently, I am viewing the screen through HDMI without using an LCD or touch panel.
I tried connecting a mouse and keyboard, but it doesn’t seem to work.

Is the original not working? Or are you wondering what more work is needed?

i have the same question

No response yet. I am having the same issue. How do you even navigate when USB keyboard and RF wireless remote doesn’t work. Looks like there is no power at all in USB dongle for RF remote as I can see my remote light blinking which means it’s not even paired with the USB dongle. I tried USB OTG port and still nothing. Most likely a design flaw.