You may not be using an LCD-supported OS. Are you using the micro SD card that came with the pine? If so, that's an HDMI-supported Android image. Swing by the Android forum and look into AYUFAN's Android 6.0. You can also stop by the IRC Chat and try and get some help there (link at the top of the page)
+1 me if I have helped you in any way. Thank you.