RTAndroid uses the HDMI audio by default. If you need the 3.5mm audio jack instead, please add the following line to the "boot/config.txt" file: hdmi_ignore_edid_audio=1
Check whether the video configuration script supports your device: Execute in the console: "./video.sh -a" Try following modifications in your "system/build.prop" file. Find out the supported resolution of your screen Change this line: "debug.drm.mode.force=1280x800" Try following modifications in your "boot/config.txt" file. Change the default hdmi drive / group / mode Increase the HDMI boost level (max is 7) Add "hdmi_ignore_edid=0xa5000080" option More information can be found here or here.