I have successfully to install the Linux system by SD card and boot the board as well. But while I try to install the Android, I could flash the software on the board. The screen show success message. But once I removed the SD card, put the switch back to 0000 and turn on the board. The board start and the LED 4 will show green sign for a minutes. But there is nothing on my screen.
Could anyone suggest what happen here? thanks!