Tried various roms, with no luck, and finally Rockchip toolkit could not recognise it on usb
Tried several times the power off reset, but, the blue start up led stayed dimmed, and pc could not recognise the box.
Tried various power supply, but the brick persisted.
Now, I am thinking of mask rom , but I am not sure if I have identified the nand, pin numbers etc.
Anyone can help please?